MH8S64DALD-7 [MITSUBISHI]

536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM; 536870912 - BIT ( 8388608 - WORD 64位)同步DRAM
MH8S64DALD-7
型号: MH8S64DALD-7
厂家: Mitsubishi Group    Mitsubishi Group
描述:

536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM
536870912 - BIT ( 8388608 - WORD 64位)同步DRAM

动态存储器
文件: 总55页 (文件大小:695K)
中文:  中文翻译
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Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
DESCRIPTION  
The MH8S64DALD is 8388608 - word by 64-bit  
Synchronous DRAM module. This consists of eight  
industry standard 8Mx8 Synchronous DRAMs in  
TSOP and one industory standard EEPROM in  
TSSOP.  
The mounting of TSOP on a card edge Dual  
Inline package provides any application where  
high densities and large quantities of memory are  
required.  
85pin  
1pin  
This is a socket type - memory modules, suitable  
for easy interchange or addition of modules.  
94pin  
95pin  
10pin  
11pin  
FEATURES  
CLK Access Time  
Frequency  
(Component SDRAM)  
-6  
-7  
-8  
5.4ns(CL=3)  
133MHz  
6.0ns(CL=2)  
6.0ns(CL=3)  
100MHz  
100MHz  
124pin  
125pin  
40pin  
41pin  
Utilizes industry standard 8M x 8 Sy nchronous DRAMs  
TSOP and industry standard EEPROM in TSSOP  
168-pin (84-pin dual in-line package)  
single 3.3V±0.3V power supply  
Max. Clock frequency -6:133MHz,-7,8:100MHz  
Fully synchronous operation referenced to clock  
rising edge  
4 bank operation controlled by BA0,1(Bank Address)  
/CAS latency- 2/3(programmable)  
Burst length- 1/2/4/8/Full Page(programmable)  
Burst type- sequential / interleave(programmable)  
Column access - random  
84pin  
168pin  
Auto precharge / All bank precharge controlled  
by A10  
Auto refresh and Self refresh  
4096 refresh cycle /64ms  
LVTTL Interface  
Discrete IC and module design conform to  
PC100/PC133 specification.  
APPLICATION  
PC main memory  
MITSUBISHI  
MIT-DS-0339-0.0  
17.Sep.1999  
ELECTRIC  
( 1 / 55 )  
Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
PIN NO. PIN NAME  
PIN NO. PIN NAME  
PIN NO.  
PIN NAME  
PIN NO. PIN NAME  
VSS  
DQ0  
DQ1  
DQ2  
DQ3  
VDD  
DQ4  
DQ5  
DQ6  
DQ7  
DQ8  
VSS  
VSS  
NC  
85  
86  
VSS  
1
43  
44  
45  
46  
47  
48  
49  
50  
51  
52  
53  
54  
55  
56  
57  
58  
59  
60  
61  
62  
63  
64  
65  
66  
67  
68  
69  
70  
71  
72  
73  
74  
75  
76  
77  
78  
79  
80  
81  
82  
83  
84  
VSS  
DQ32  
DQ33  
DQ34  
DQ35  
VDD  
DQ36  
DQ37  
DQ38  
DQ39  
DQ40  
VSS  
127  
128  
129  
130  
131  
132  
133  
134  
135  
136  
137  
138  
139  
140  
141  
142  
143  
144  
145  
146  
147  
148  
149  
150  
151  
152  
153  
154  
155  
156  
157  
158  
159  
160  
161  
162  
163  
164  
165  
166  
167  
168  
2
CKE0  
NC  
87  
3
/S2  
88  
4
DQMB2  
DQMB3  
NC  
DQMB6  
DQMB7  
NC  
89  
5
90  
6
91  
7
VDD  
VDD  
NC  
92  
8
NC  
NC  
NC  
93  
9
NC  
94  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
NC  
NC  
95  
NC  
96  
VSS  
VSS  
97  
DQ9  
DQ10  
DQ11  
DQ12  
DQ13  
VDD  
DQ14  
DQ15  
DQ16  
DQ17  
DQ18  
DQ19  
VDD  
DQ41  
DQ42  
DQ43  
DQ44  
DQ45  
VDD  
DQ46  
DQ47  
NC  
DQ48  
DQ49  
DQ50  
DQ51  
VDD  
DQ52  
NC  
98  
99  
100  
101  
102  
103  
104  
105  
106  
107  
108  
109  
110  
111  
112  
113  
114  
115  
116  
117  
118  
119  
120  
121  
122  
123  
124  
125  
126  
DQ20  
NC  
NC  
NC  
NC  
NC  
NC  
NC  
VSS  
VSS  
NC  
VSS  
NC  
DQ21  
DQ22  
DQ23  
VSS  
VSS  
DQ53  
DQ54  
DQ55  
VSS  
NC  
NC  
NC  
VDD  
/WE0  
VDD  
/CAS  
DQMB4  
DQMB5  
NC  
DQ24  
DQ25  
DQ26  
DQ27  
VDD  
DQ28  
DQ29  
DQ30  
DQ31  
VSS  
DQ56  
DQ57  
DQ58  
DQ59  
VDD  
DQ60  
DQ61  
DQ62  
DQ63  
VSS  
DQMB0  
DQMB1  
/S0  
NC  
/RAS  
VSS  
VSS  
A0  
A1  
A2  
A3  
A4  
A5  
A6  
A7  
A8  
A9  
CK2  
CK3  
NC  
NC  
A10  
BA1  
VDD  
VDD  
CK0  
BA0  
SA0  
SA1  
SA2  
VDD  
WP  
SDA  
SCL  
VDD  
A11  
VDD  
CK1  
NC  
NC = No Connection  
MITSUBISHI  
ELECTRIC  
MIT-DS-0339-0.0  
17.Sep.1999  
( 2 / 55 )  
Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
Block Diagram  
/S0  
DQMB0  
DQMB4  
DQM /CS  
I/O 0  
DQM /CS  
DQ0  
DQ1  
DQ2  
DQ3  
DQ4  
DQ5  
DQ6  
DQ7  
I/O 0  
DQ32  
I/O 1  
I/O 2  
I/O 1  
DQ33  
D4  
D0  
I/O 2  
I/O 3  
DQ34  
I/O 3  
I/O 4  
I/O 5  
I/O 6  
I/O 7  
DQ35  
I/O 4  
I/O 5  
I/O 6  
I/O 7  
DQ36  
DQ37  
DQ38  
DQ39  
DQMB1  
DQMB5  
DQM /CS  
I/O 0  
DQM /CS  
I/O 0  
DQ8  
DQ40  
DQ41  
DQ42  
DQ43  
DQ44  
DQ45  
DQ46  
DQ47  
I/O 1  
DQ9  
I/O 1  
D5  
D1  
I/O 2  
I/O 3  
I/O 4  
I/O 5  
I/O 6  
I/O 7  
DQ10  
DQ11  
DQ12  
DQ13  
DQ14  
DQ15  
I/O 2  
I/O 3  
I/O 4  
I/O 5  
I/O 6  
I/O 7  
/S2  
DQMB2  
DQMB6  
DQM /CS  
I/O 0  
DQM /CS  
I/O 0  
DQ16  
DQ17  
DQ18  
DQ19  
DQ20  
DQ21  
DQ22  
DQ23  
DQ48  
DQ49  
DQ50  
DQ51  
DQ52  
DQ53  
DQ54  
DQ55  
I/O 1  
I/O 1  
D2  
D6  
I/O 2  
I/O 3  
I/O 4  
I/O 2  
I/O 3  
I/O 4  
I/O 5  
I/O 6  
I/O 7  
I/O 5  
I/O 6  
I/O 7  
DQMB3  
DQMB7  
DQM /CS  
I/O 0  
DQM /CS  
I/O 0  
DQ24  
DQ25  
DQ26  
DQ27  
DQ28  
DQ29  
DQ30  
DQ31  
DQ56  
DQ57  
DQ58  
DQ59  
DQ60  
DQ61  
DQ62  
DQ63  
I/O 1  
I/O 1  
D3  
D7  
I/O 2  
I/O 3  
I/O 4  
I/O 5  
I/O 6  
I/O 7  
I/O 2  
I/O 3  
I/O 4  
I/O 5  
I/O 6  
I/O 7  
CK0  
4SDRAMs+3.3pF cap.  
4SDRAMs+3.3pF cap.  
CK2  
/RAS  
/CAS  
/WE  
D0 - D7  
D0 - D7  
D0 - D7  
CK1  
CK3  
BA0,BA1,A<11:0>  
Vcc  
D0 - D7  
D0 - D7  
SERIAL PD  
A0 A1 A2  
SCL  
WP  
47K  
SDA  
Vss  
D0 - D7  
D0 - D7  
CKE0  
SA0 SA1 SA2  
MITSUBISHI  
ELECTRIC  
/ 55 )  
MIT-DS-0339-0.0  
17.Sep.1999  
(
3
Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
Serial Presence Detect Table I  
Byte  
0
SPD enrty data  
128  
SPD DATA(hex)  
Function described  
Defines # bytes written into serial memory at module mfgr  
Total # bytes of SPD memory device  
Fundamental memory type  
80  
08  
04  
0C  
09  
01  
40  
00  
1
256 Bytes  
SDRAM  
A0-A11  
A0-A8  
2
3
# Row Addresses on this assembly  
# Column Addresses on this assembly  
# Module Banks on this assembly  
Data Width of this assembly...  
4
5
1BANK  
x64  
6
7
... Data Width continuation  
0
8
Voltage interface standard of this assembly  
LVTTL  
7.5ns  
01  
75  
9
SDRAM Cycletime at Max. Supported CAS Latency (CL).  
Cycle time for CL=3  
-6  
-7,-8  
10ns  
5.4ns  
6ns  
A0  
54  
60  
-6  
10  
SDRAM Access from Clock  
tAC for CL=3  
-7,-8  
11  
12  
13  
14  
15  
16  
17  
Non-PARITY  
DIMM Configuration type (Non-parity,Parity,ECC)  
Refresh Rate/Type  
00  
80  
self refresh(15.625uS)  
x8  
SDRAM width,Primary DRAM  
08  
00  
N/A  
Error Checking SDRAM data width  
Minimum Clock Delay,Back to Back Random Column Addresses  
Burst Lengths Supported  
1
01  
8F  
1/2/4/8/Full page  
04  
04  
06  
4bank  
3
# Banks on Each SDRAM device  
-6  
18  
CAS# Latency  
-7,-8  
2/3  
19  
20  
21  
22  
CS# Latency  
Write Latency  
01  
0
0
01  
00  
0E  
00  
non-buffered,non-registered  
SDRAM Module Attributes  
SDRAM Device Attributes:General  
Precharge All,Auto precharge  
N/A  
-6  
23  
SDRAM Cycle time(2nd highest CAS latency)  
10ns  
-7  
A0  
Cycle time for CL=2  
-8  
13ns  
N/A  
6ns  
D0  
00  
-6  
-7  
24  
SDRAM Access form Clock(2nd highest CAS latency)  
tAC for CL=2  
60  
70  
7ns  
-8  
25  
26  
SDRAM Cycle time(3rd highest CAS latency)  
N/A  
00  
SDRAM Access form Clock(3rd highest CAS latency)  
N/A  
00  
17  
-6  
22.5ns  
27  
28  
29  
30  
Precharge to Active Minimum  
Row Active to Row Active Min.  
-7,-8  
20ns  
14  
-6  
15ns  
20ns  
0F  
14  
-7,-8  
RAS to CAS Delay Min  
Active to Precharge Min  
-6  
-7,-8  
-6  
22.5ns  
20ns  
17  
14  
2D  
45ns  
-7,-8  
50ns  
32  
MITSUBISHI  
ELECTRIC  
MIT-DS-0339-0.0  
17.Sep.1999  
4
(
/ 55 )  
Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
Serial Presence Detect Table II  
31  
32  
Density of each bank on module  
64MByte  
1.5ns  
2ns  
10  
15  
20  
08  
-6  
Command and Address signal input setup time  
-7,-8  
-6  
0.8ns  
33  
Command and Address signal input hold time  
-7,-8  
1ns  
10  
15  
-6  
-7,-8  
-6  
1.5ns  
34  
35  
Data signal input setup time  
Data signal input hold time  
2ns  
0.8ns  
1ns  
20  
08  
10  
-7,-8  
Superset Information (may be used in future)  
SPD Revision  
36-61  
62  
option  
JEDEC2  
00  
02  
-6  
-7,-8  
rev 1.2A  
12  
92  
Check sum for -6  
63  
Checksum for bytes 0-62  
Check sum for -7  
Check sum for -8  
MITSUBISHI  
Miyoshi,Japan  
Tajima,Japan  
NC,USA  
05  
45  
Manufactures Jedec ID code per JEP-108E  
Manufacturing location  
64-71  
72  
1CFFFFFFFFFFFFFF  
01  
02  
03  
Germany  
04  
4D483853363444414C442D36202020202020  
MH8S64DALD-6  
4D483853363444414C442D37202020202020  
4D483853363444414C442D38202020202020  
73-90  
Manufactures Part Number  
MH8S64DALD-7  
MH8S64DALD-8  
91-92  
93-94  
95-98  
Revision Code  
PCB revision  
year/week code  
serial number  
option  
rrrr  
yyww  
Manufacturing date  
Assembly Serial Number  
Manufacture Specific Data  
ssssssss  
00  
64  
99-125  
126  
Intetl specification frequency  
100MHz  
-7  
CL=2/3,AP,CK0,2  
CL=3,AP,CK0,2  
AF  
AD  
127  
Intel specification CAS# Latency support  
Unused storage locations  
-6,-8  
128+  
open  
00  
MITSUBISHI  
ELECTRIC  
MIT-DS-0339-0.0  
17.Sep.1999  
5
(
/ 55 )  
Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
PIN FUNCTION  
Master Clock:All other inputs are referenced to the rising  
edge of CK  
CK  
Input  
(CK0 ~ CK3)  
Clock Enable:CKE controls internal clock.When CKE is  
low,internal clock for the following cycle is ceased. CKE is  
also used to select auto / self refresh. After self refresh  
mode is started, CKE becomes asynchronous input.Self  
refresh is maintained as long as CKE is low.  
CKE0  
Input  
Chip Select: When /S is high,any command means  
No Operation.  
/S  
(/S0,2)  
Input  
Input  
/RAS,/CAS,/WE  
Combination of /RAS,/CAS,/WE defines basic commands.  
A0-11 specify the Row/Column Address in conjunction with  
BA.The Row Address is specified by A0-11.The Column  
Address is specified by A0-8.A10 is also used to indicate  
precharge option.When A10 is high at a read / write  
command, an auto precharge is performed. When A10 is  
high at a precharge command, all banks are precharged.  
A0-11  
Input  
Bank Address:BA0,1 is not simply BA.BA specifies the  
bank to which a command is applied.BA0,1 must be set  
with ACT,PRE,READ,WRITE commands  
BA0,1  
Input  
DQ0-63  
Data In and Data out are referenced to the rising edge of  
CK  
Input/Output  
Din Mask/Output Disable:When DQMB is high in burst  
write.Din for the current cycle is masked.When DQMB is  
high in burst read,Dout is disabled at the next but one cycle.  
DQMB0-7  
Vdd,Vss  
Input  
Power Supply Power Supply for the memory mounted module.  
Input  
Serial clock for serial PD  
SCL  
SDA  
Output  
Input  
Serial data for serial PD  
SA0-3  
Address input for serial PD  
MITSUBISHI  
ELECTRIC  
MIT-DS-0339-0.0  
17.Sep.1999  
( 6 / 55 )  
Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
BASIC FUNCTIONS  
The MH8S64DALD provides basic functions,bank(row)activate,burst read / write,  
bank(row)precharge,and auto / self refresh.  
Each command is defined by control signals of /RAS,/CAS and /WE at CK rising edge.  
In addition to 3 signals,/S,CKE and A10 are used as chip select,refresh option,and  
precharge option,respectively.  
To know the detailed definition of commands please see the command truth table.  
CK  
/S  
Chip Select : L=select, H=deselect  
Command  
/RAS  
/CAS  
Command  
Command  
def ine basic commands  
/WE  
CKE  
A10  
Ref resh Option @ref resh command  
Precharge Option @precharge or read/write command  
Activate(ACT) [/RAS =L, /CAS = /WE =H]  
ACT command activates a row in an idle bank indicated by BA.  
Read(READ) [/RAS =H,/CAS =L, /WE =H]  
READ command starts burst read from the active bank indicated by BA.First output  
data appears after /CAS latency. When A10 =H at this command,the bank is  
deactivated after the burst read(auto-precharge,READA).  
Write(WRITE) [/RAS =H, /CAS = /WE =L]  
WRITE command starts burst write to the active bank indicated by BA. Total data  
length to be written is set by burst length. When A10 =H at this command, the bank is  
deactivated after the burst write(auto-precharge,WRITEA).  
Precharge(PRE) [/RAS =L, /CAS =H,/WE =L]  
PRE command deactivates the active bank indicated by BA. This command also  
terminates burst read / write operation. When A10 =H at this command, both banks  
are deactivated(precharge all, PREA).  
Auto-Refresh(REFA) [/RAS =/CAS =L, /WE =CKE =H]  
REFA command starts auto-refresh cycle. Refresh address including bank address  
are generated internally. After this command, the banks are precharged automatically.  
MITSUBISHI  
ELECTRIC  
MIT-DS-0339-0.0  
17.Sep.1999  
( 7 / 55 )  
Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
COMMAND TRUTH TABLE  
CKE CKE  
/CAS  
A11  
MNEMONIC  
COMMAND  
/RAS  
/WE BA0,1  
A10  
A0-9  
/S  
n-1  
n
Deselect  
DESEL  
NOP  
H
H
X
X
H
L
X
H
X
H
X
H
X
X
X
X
X
X
X
X
No Operation  
Row Adress Entry &  
Bank Activate  
ACT  
H
X
L
L
H
H
V
V
V
V
Single Bank Precharge  
Precharge All Bank  
PRE  
H
H
X
X
L
L
L
L
H
H
L
L
V
X
X
X
L
X
X
PREA  
H
Column Address Entry  
& Write  
WRITE  
WRITEA  
READ  
H
H
H
H
X
X
X
X
L
L
L
L
H
H
H
H
L
L
L
L
L
V
V
V
V
V
V
V
V
L
V
V
V
V
Column Address Entry  
& Write with Auto-  
Precharge  
L
H
L
Column Address Entry  
& Read  
H
H
Column Address Entry  
& Read with Auto  
Precharge  
READA  
H
Auto-Refresh  
Self-Refresh Entry  
Self-Refresh Exit  
REFA  
REFS  
H
H
L
H
L
L
L
H
L
L
L
L
L
H
H
X
H
L
X
X
X
X
X
L
X
X
X
X
X
L
X
X
X
X
X
L
X
X
L
L
REFSX  
H
H
X
X
X
H
H
L
X
H
H
L
X
L
X
Burst Terminate  
TERM  
MRS  
H
H
X
V*1  
Mode Register Set  
L
H =High Level, L = Low Level, V = Valid, X = Don't Care, n = CK cycle number  
NOTE:  
1.A7-9 = 0, A0-6 = Mode Address  
MITSUBISHI  
ELECTRIC  
MIT-DS-0339-0.0  
17.Sep.1999  
( 8 / 55 )  
Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
FUNCTION TRUTH TABLE  
Command  
DESEL  
NOP  
Current State  
IDLE  
/S  
H
L
/RAS /CAS /WE  
Address  
Action  
X
H
H
H
L
X
H
H
L
X
H
L
X
X
NOP  
NOP  
L
BA  
TBST  
ILLEGAL*2  
L
X
H
L
BA,CA,A10  
BA,RA  
READ/WRITE ILLEGAL*2  
ACT Bank Active,Latch RA  
PRE/PREA NOP*4  
L
H
H
L
L
L
BA,A10  
X
L
L
H
REFA  
Auto-Refresh*5  
Op-Code,  
L
L
L
L
MRS  
Mode Register Set*5  
Mode-Add  
ROW ACTIVE  
H
L
L
X
H
H
X
H
H
X
H
L
X
DESEL  
NOP  
NOP  
X
NOP  
BA  
NOP  
TBST  
Begin Read,Latch CA,  
Determine Auto-Precharge  
Begin Write,Latch CA,  
Determine Auto-Precharge  
Bank Active/ILLEGAL*2  
L
L
H
H
L
L
H
L
BA,CA,A10 READ/READA  
WRITE/  
BA,CA,A10  
WRITEA  
L
L
L
L
L
L
H
H
L
H
L
BA,RA  
ACT  
BA,A10  
PRE/PREA Precharge/Precharge All  
H
X
REFA  
ILLEGAL  
Op-Code,  
L
L
L
L
MRS  
ILLEGAL  
Mode-Add  
READ  
H
L
L
X
H
H
X
H
H
X
H
L
X
DESEL  
NOP  
NOP(Continue Burst to END)  
NOP(Continue Burst to END)  
Terminate Burst  
X
TBST  
BA  
Terminate Burst,Latch CA,  
L
L
H
H
L
L
H
L
BA,CA,A10 READ/READA Begin New Read,Determine  
Auto-Precharge*3  
Terminate Burst,Latch CA,  
BA,CA,A10 WRITE/WRITEA Begin Write,Determine Auto-  
Precharge*3  
L
L
L
L
L
L
H
H
L
H
L
BA,RA  
BA,A10  
X
ACT  
Bank Active/ILLEGAL*2  
PRE/PREA Terminate Burst,Precharge  
H
REFA  
MRS  
ILLEGAL  
ILLEGAL  
Op-Code,  
Mode-Add  
L
L
L
L
MITSUBISHI  
MIT-DS-0339-0.0  
17.Sep.1999  
ELECTRIC  
( 9 / 55 )  
Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
FUNCTION TRUTH TABLE(continued)  
Command  
DESEL  
NOP  
Current State  
WRITE  
/S  
H
L
/RAS /CAS /WE  
Address  
Action  
X
H
H
X
H
H
X
H
L
X
X
NOP(Continue Burst to END)  
NOP(Continue Burst to END)  
Terminate Burst  
L
BA  
TBST  
Terminate Burst,Latch CA,  
Begin Read,Determine Auto-  
Precharge*3  
READ/READA  
L
L
H
H
L
L
H
L
BA,CA,A10  
Terminate Burst,Latch CA,  
Begin Write,Determine Auto-  
Precharge*3  
WRITE/  
BA,CA,A10  
WRITEA  
L
L
L
L
L
L
H
H
L
H
L
BA,RA  
BA,A10  
X
ACT  
Bank Active/ILLEGAL*2  
PRE/PREA Terminate Burst,Precharge  
H
REFA  
ILLEGAL  
Op-Code,  
L
L
L
L
MRS  
ILLEGAL  
Mode-Add  
READ with  
AUTO  
H
L
L
L
X
H
H
H
X
H
H
L
X
H
L
X
DESEL  
NOP  
NOP(Continue Burst to END)  
NOP(Continue Burst to END)  
ILLEGAL  
X
PRECHARGE  
BA  
TBST  
H
BA,CA,A10 READ/READA ILLEGAL  
WRITE/  
L
H
L
L
BA,CA,A10  
ILLEGAL  
WRITEA  
ACT  
L
L
L
L
L
L
H
H
L
H
L
BA,RA  
Bank Active/ILLEGAL*2  
BA,A10  
PRE/PREA ILLEGAL*2  
H
X
REFA  
ILLEGAL  
Op-Code,  
L
L
L
L
MRS  
ILLEGAL  
Mode-Add  
WRITE with  
AUTO  
H
L
L
L
X
H
H
H
X
H
H
L
X
H
L
X
DESEL  
NOP  
NOP(Continue Burst to END)  
NOP(Continue Burst to END)  
ILLEGAL  
X
PRECHARGE  
TBST  
BA  
H
BA,CA,A10 READ/READA ILLEGAL  
WRITE/  
L
H
L
L
BA,CA,A10  
ILLEGAL  
WRITEA  
ACT  
BA,RA  
BA,A10  
X
L
L
L
L
L
L
H
H
L
H
L
Bank Active/ILLEGAL*2  
PRE/PREA ILLEGAL*2  
H
REFA  
ILLEGAL  
Op-Code,  
Mode-Add  
L
L
L
L
MRS  
ILLEGAL  
MITSUBISHI  
MIT-DS-0339-0.0  
17.Sep.1999  
ELECTRIC  
( 10/ 55 )  
Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
FUNCTION TRUTH TABLE(continued)  
Command  
DESEL  
NOP  
Current State  
PRE -  
/S  
H
L
/RAS /CAS /WE  
Address  
Action  
NOP(Idle after tRP)  
NOP(Idle after tRP)  
ILLEGAL*2  
X
H
H
H
L
X
H
H
L
X
H
L
X
X
CHARGING  
L
BA  
TBST  
L
X
H
L
BA,CA,A10 READ/WRITE ILLEGAL*2  
L
H
H
L
BA,RA  
ACT  
ILLEGAL*2  
L
L
BA,A10  
PRE/PREA NOP*4(Idle after tRP)  
L
L
H
X
REFA  
MRS  
ILLEGAL  
ILLEGAL  
Op-Code,  
L
L
L
L
Mode-Add  
ROW  
H
L
L
L
L
L
L
X
H
H
H
L
X
H
H
L
X
H
L
X
DESEL  
NOP  
NOP(Row Active after tRCD  
NOP(Row Active after tRCD  
ILLEGAL*2  
ACTIVATING  
X
BA  
TBST  
X
H
L
BA,CA,A10 READ/WRITE ILLEGAL*2  
H
H
L
BA,RA  
BA,A10  
X
ACT  
ILLEGAL*2  
L
PRE/PREA ILLEGAL*2  
L
H
REFA  
MRS  
ILLEGAL  
ILLEGAL  
Op-Code,  
Mode-Add  
L
L
L
L
WRITE RE-  
COVERING  
H
L
L
L
L
L
L
X
H
H
H
L
X
H
H
L
X
H
L
X
DESEL  
NOP  
NOP  
X
NOP  
BA  
TBST  
ILLEGAL*2  
X
H
L
BA,CA,A10 READ/WRITE ILLEGAL*2  
H
H
L
BA,RA  
BA,A10  
X
ACT  
ILLEGAL*2  
L
PRE/PREA ILLEGAL*2  
L
H
REFA  
MRS  
ILLEGAL  
ILLEGAL  
Op-Code,  
Mode-Add  
L
L
L
L
MITSUBISHI  
MIT-DS-0339-0.0  
17.Sep.1999  
ELECTRIC  
( 11/ 55 )  
Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
FUNCTION TRUTH TABLE(continued)  
Current State  
RE-  
/S  
H
L
/RAS /CAS /WE  
Address  
Command  
DESEL  
NOP  
Action  
NOP(Idle after tRC)  
NOP(Idle after tRC)  
X
H
H
H
L
X
H
H
L
X
H
L
X
X
FRESHING  
L
BA  
TBST  
ILLEGAL  
L
X
H
L
BA,CA,A10 READ/WRITE ILLEGAL  
L
H
H
L
BA,RA  
ACT  
ILLEGAL  
L
L
BA,A10  
PRE/PREA ILLEGAL  
L
L
H
X
REFA  
MRS  
ILLEGAL  
ILLEGAL  
Op-Code,  
L
L
L
L
Mode-Add  
MODE  
H
L
L
L
L
L
L
X
H
H
H
L
X
H
H
L
X
H
L
X
DESEL  
NOP  
NOP(Idle after tRSC)  
NOP(Idle after tRSC)  
ILLEGAL  
REGISTER  
SETTING  
X
BA  
TBST  
X
H
L
BA,CA,A10 READ/WRITE ILLEGAL  
H
H
L
BA,RA  
BA,A10  
X
ACT  
ILLEGAL  
L
PRE/PREA ILLEGAL  
L
H
REFA  
MRS  
ILLEGAL  
ILLEGAL  
Op-Code,  
Mode-Add  
L
L
L
L
ABBREVIATIONS:  
H = Hige Level, L = Low Level, X = Don't Care  
BA = Bank Address, RA = Row Address, CA = Column Address, NOP = No Operation  
NOTES:  
1. All entries assume that CKE was High during the preceding clock cycle and the current  
clock cycle.  
2. ILLEGAL to bank in specified state; function may be legal in the bank indicated by BA,  
depending on the state of that bank.  
3. Must satisfy bus contention, bus turn around, write recovery requirements.  
4. NOP to bank precharging or in idle state.May precharge bank indicated by BA.  
5. ILLEGAL if any bank is not idle.  
ILLEGAL = Device operation and / or date-integrity are not guaranteed.  
MITSUBISHI  
ELECTRIC  
MIT-DS-0339-0.0  
17.Sep.1999  
( 12/ 55 )  
Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
FUNCTION TRUTH TABLE FOR CKE  
CKE CKE  
Action  
Current State  
/RAS /CAS /WE  
Add  
/S  
n-1  
n
INVALID  
SELF -  
H
L
X
H
H
H
H
H
L
X
H
L
X
X
H
H
H
L
X
X
H
H
L
X
X
H
L
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Exit Self-Refresh(Idle after tRC)  
Exit Self-Refresh(Idle after tRC)  
ILLEGAL  
REFRESH*1  
L
L
L
ILLEGAL  
L
L
X
X
X
X
X
X
X
H
X
H
L
ILLEGAL  
L
L
X
X
X
X
X
X
L
NOP(Maintain Self-Refresh)  
INVALID  
L
X
X
X
X
X
L
X
X
X
X
X
L
POWER  
DOWN  
H
L
X
H
L
Exit Power Down to Idle  
NOP(Maintain Self-Refresh)  
Refer to Function Truth Table  
Enter Self-Refresh  
L
ALL BANKS  
IDLE*2  
H
H
H
H
H
H
H
L
H
L
Enter Power Down  
L
H
L
X
H
H
H
L
X
H
H
L
Enter Power Down  
L
ILLEGAL  
L
L
ILLEGAL  
L
L
X
X
X
X
X
X
X
ILLEGAL  
L
L
X
X
X
X
X
X
Refer to Current State = Power Down  
Refer to Function Truth Table  
Begin CK0 Suspend at Next Cycle*3  
Exit CK0 Suspend at Next Cycle*3  
Maintain CK0 Suspend  
X
H
L
X
X
X
X
X
X
X
X
X
X
ANY STATE  
other than  
H
H
L
listed above  
H
L
L
ABBREVIATIONS:  
H = High Level, L = Low Level, X = Don't Care  
NOTES:  
1. CKE Low to High transition will re-enable CK and other inputs asynchronously.  
A minimum setup time must be satisfied before any command other than EXIT.  
2. Power-Down and Self-Refresh can be entered only from the All banks idle State.  
3. Must be legal command.  
MITSUBISHI  
ELECTRIC  
MIT-DS-0339-0.0  
17.Sep.1999  
13  
(
/ 55 )  
Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
SIMPLIFIED STATE DIAGRAM  
SELF  
REFRESH  
REFS  
REFSX  
MRS  
REFA  
CKEL  
CKEH  
ACT  
POWER  
DOWN  
CKEL  
CKEH  
TBST(for Full Page)  
TBST(for Full Page)  
READ  
ROW  
ACTIVE  
WRITE  
READA  
READ  
WRITEA  
WRITE  
CKEL  
CKEH  
CKEL  
WRITE  
SUSPEND  
READ  
SUSPEND  
WRITE  
READ  
CKEH  
WRITEA  
READA  
WRITEA  
PRE  
READA  
PRE  
CKEL  
CKEH  
CKEL  
CKEH  
PRE  
POWER  
APPLIED  
POWER  
ON  
PRE  
CHARGE  
PRE  
Automatic Sequence  
Command Sequence  
MITSUBISHI  
ELECTRIC  
MIT-DS-0339-0.0  
17.Sep.1999  
( 14/ 55 )  
Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
POWER ON SEQUENCE  
Before starting normal operation, the following power on sequence is necessary to prevent  
a SDRAM from damaged or malfunctioning.  
1. Apply power and start clock. Attempt to maintain CKE high, DQMB0-7 high and NOP  
condition at the inputs.  
2. Maintain stable power, stable clock, and NOP input conditions for a minimum of 200us.  
3. Issue precharge commands for all banks. (PRE or PREA)  
4. After all banks become idle state (after tRP), issue 8 or more auto-refresh commands.  
5. Issue a mode register set command to initialize the mode register.  
After these sequence, the SDRAM is idle state and ready for normal operation.  
MODE REGISTER  
Burst Length, Burst Type and /CAS Latency can be programmed by setting the mode  
register(MRS). The mode register stores these date until the next MRS command, which  
may be issue when both banks are in idle state. After tRSC from a MRS command, the  
SDRAM is ready for new command.  
CK  
/S  
/RAS  
BA0 BA1 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0  
/CAS  
WM  
0
0
0
0
0
0
LTMODE  
BT  
BL  
/WE  
BA0,1 A11-0  
V
BL  
BT= 0  
BT= 1  
0 0 0  
0 0 1  
0 1 0  
0 1 1  
1 0 0  
1 0 1  
1 1 0  
1 1 1  
1
2
1
2
CL  
/CAS LATENCY  
4
4
BURST  
LENGTH  
8
8
0 0 0  
0 0 1  
0 1 0  
R
R
2
R
R
R
FP  
R
R
R
R
LATENCY  
MODE  
3
0 1 1  
1 0 0  
1 0 1  
1 1 0  
1 1 1  
R
R
R
R
0
1
SEQUENTIAL  
BURST  
TYPE  
INTERLEAVED  
R:Reserved for Future Use  
FP: Full Page  
BURST  
SINGLE BIT  
0
1
WRITE  
MODE  
MITSUBISHI  
MIT-DS-0339-0.0  
17.Sep.1999  
ELECTRIC  
( 15/ 55 )  
Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
CK  
Read  
Y
Write  
Y
Command  
Address  
DQ  
Q0  
Q1  
Q2  
Q3  
D0  
D1  
D2  
D3  
CL= 3  
BL= 4  
/CAS Latency  
Burst Length  
Burst Length  
Burst Type  
Initial Address  
A2 A1 A0  
BL  
Column Addressing  
Sequential  
Interleaved  
0
0
0
0
1
1
1
1
-
0
0
1
1
0
0
1
1
0
0
1
1
-
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
2
3
4
5
6
7
0
1
2
3
0
1
1
2
3
4
5
6
7
0
1
2
3
0
1
0
2
3
4
5
6
7
0
1
2
3
0
1
3
4
5
6
7
0
1
2
3
0
1
2
4
5
6
7
0
1
2
3
5
6
7
0
1
2
3
4
6
7
0
1
2
3
4
5
7
0
1
2
3
4
5
6
0
1
2
3
4
5
6
7
0
1
2
3
0
1
1
0
3
2
5
4
7
6
1
0
3
2
1
0
2
3
0
1
6
7
4
5
2
3
0
1
3
2
1
0
7
6
5
4
3
2
1
0
4
5
6
7
0
1
2
3
5
4
7
6
1
0
3
2
6
7
4
5
2
3
0
1
7
6
5
4
3
2
1
0
8
-
4
2
-
-
-
-
-
MITSUBISHI  
ELECTRIC  
MIT-DS-0339-0.0  
17.Sep.1999  
( 16/ 55 )  
Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
OPERATION DESCRIPTION  
BANK ACTIVATE  
One of four banks is activated by an ACT command.  
An bank is selected by BA0-1. A row is selected by A0-11.  
Multiple banks can be active state concurrently by issuing multiple ACT commands.  
Minimum activation interval between one bank and another bank is tRRD.  
PRECHARGE  
An open bank is deactivated by a PRE command.  
A bank to be deactivated is designated by BA0-1.  
When multiple banks are active, a precharge all command (PREA, PRE + A10=H)  
deactivates all of open banks at the same time. BA0-1 are "Don't Care" in this case.  
Minimum delay time of an ACT command after a PRE command to the same bank is tRP.  
Bank Activation and Precharge All (BL=4, CL=2)  
CK  
Command ACT  
ACT  
Xb  
READ  
Yb  
0
PRE  
ACT  
Xa  
tRCD  
tRRD  
tRP  
A0-9,11  
A10  
Xa  
Xa  
Xb  
1
Xa  
BA0,1 00  
DQ  
01  
01  
00  
Qa0 Qa1 Qa2 Qa3  
Precharge all  
READ  
A READ command can be issued to any active bank. The start address is specified by A0-8  
(x8) . 1st output data is available after the /CAS Latency from the READ. The consecutive data  
length is defined by the Burst Length. The address sequence of the burst data is defined by  
the Burst Type. Minimum delay time of a READ command after an ACT command to the  
same bank is tRCD.  
When A10 is high at a READ command, auto-precharge (READA) is performed. Any  
command (READ, WRITE, PRE, ACT, TBST) to the same bank is inhibited till the internal  
precharge is complete. The internal precharge starts at the BL after READA. The next ACT  
command can be issued after (BL + tRP) from the previous READA. In any case, tRCD+BL >  
tRASmin must be met.  
MITSUBISHI  
ELECTRIC  
MIT-DS-0339-0.0  
17.Sep.1999  
17  
(
/ 55 )  
Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
Multi Bank Interleaving READ (BL=4, CL=2)  
CK  
Command  
ACT  
READ  
ACT  
READ PRE  
Yb  
ACT  
tRCD  
tRCD  
tRP  
Xa  
Xa  
Ya  
0
Xb  
Xb  
Xa  
Xa  
A0-9, 11  
0
0
A10  
BA0,1  
DQ  
00  
01  
00  
00  
00  
01  
Qa0 Qa1 Qa2 Qa3 Qb0 Qb1 Qb2 Qb3  
READ with Auto-Precharge (BL=4, CL=2)  
CK  
Command  
ACT  
READ  
ACT  
tRCD  
tRP  
BL  
Xa  
Xa  
Xa  
Xa  
Ya  
1
A0-9, 11  
A10  
00  
BA0,1 00  
00  
DQ  
Qa0 Qa1 Qa2 Qa3  
Internal precharge starts  
Auto-Precharge Timing (READ BL=4)  
CK  
Command  
ACT  
READ  
ACT  
tRCD  
BL  
CL=3 DQ  
CL=2 DQ  
Qa0 Qa1 Qa2 Qa3  
Qa0 Qa1 Qa2 Qa3  
Internal precharge starts  
MITSUBISHI  
ELECTRIC  
MIT-DS-0339-0.0  
17.Sep.1999  
(
/ 55 )  
18  
Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
WRITE  
A WRITE command can be issued to any active bank. The start address is specified by A0-8  
(x8). 1st input data is set at the same cycle as the WRITE. The consecutive data length to be  
written is defined by the Burst Length. The address sequence of burst data is defined by the  
Burst Type. Minimum delay time of a WRITE command after an ACT command to the same  
bank is tRCD. From the last input data to the PRE command, the write recovery time (tWR) is  
required. When A10 is high at a WRITE command, auto-precharge (WRITEA) is performed.  
Any command (READ, WRITE, PRE, ACT, TBST) to the same bank is inhibited till the internal  
precharge is complete. The internal precharge starts at tWR after the last input data cycle.  
The next ACT command can be issued after (BL + tWR -1 + tRP) from the previous WRITEA.  
In any case, tRCD + BL + tWR -1 > tRASmin must be met.  
WRITE (BL=4)  
CK  
Command  
ACT  
Write  
PRE  
ACT  
tRCD  
BL  
tRP  
Ya  
0
Xa  
Xa  
Xa  
Xa  
A0-9, 11  
A10  
0
BA0,1  
DQ  
00  
00  
00  
tWR  
Da0 Da1 Da2 Da3  
WRITE with Auto-Precharge (BL=4)  
CK  
Command  
ACT  
Write  
ACT  
tRP  
tRCD  
BL  
Xa  
Xa  
Xa  
Xa  
Ya  
1
A0-9, 11  
A10  
BA0,1  
DQ  
00  
00  
00  
tWR  
Da0 Da1 Da2 Da3  
Internal precharge begins  
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Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
BURST INTERRUPTION  
[ Read Interrupted by Read ]  
Burst read oparation can be interrupted by new read of the same or the other bank. Random  
column access is allowed READ to READ interval is minimum 1 CK  
Read Interrupted by Read (BL=4, CL=2)  
CK  
Command  
A0-9,11  
A10  
READ  
Ya  
0
READ READ  
Yb  
0
Yc  
0
BA0,1  
00  
00  
10  
DQ  
Qa0 Qa1 Qa2 Qb0 Qc0 Qc1  
Qc2 Qc3  
[ Read Interrupted by Write ]  
Burst read operation can be interrupted by write of any active bank. Random column access  
is allowed. In this case, the DQ should be controlled adequately by using the DQMB0-7 to  
prevent the bus contention. The output is disabled automatically 1 cycle after WRITE  
assertion.  
Read Interrupted by Write (BL=4, CL=2)  
CK  
Command  
ACT  
Xa  
READ  
Ya  
0
Write  
Ya  
0
A0-9,11  
A10  
Xa  
00  
00  
00  
BA0,1  
DQMB0-7  
DQ  
Qa0  
Da0 Da1 Da2 Da3  
Output disableby DQM by WRITE  
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MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
[ Read Interrupted by Precharge ]  
A burst read operation can be interrupted by precharge of the same bank. Read to PRE  
interval is minimum 1 CK. A PRE command output disable latency is equivalent to the  
/CAS Latency.  
Read Interrupted by Precharge (BL=4)  
CK  
Command  
READ  
READ  
PRE  
Q0  
DQ  
Q1  
Q1  
Q2  
CL=3  
Command  
PRE  
DQ  
Q0  
Q0  
Command  
READ PRE  
DQ  
Command  
DQ  
PRE  
Q1  
READ  
Q0  
Q2  
CL=2  
Command  
READ  
PRE  
Q0  
DQ  
Q1  
Command  
READ PRE  
DQ  
Q0  
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Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
[ Read Interrupted by Burst Terminate ]  
Similarly to the precharge, burst terminate command can interrupt burst read operation  
and disable the data output. The terminated bank remains active,READ to TBST interval is  
minimum of 1 CK. A TBSTcommand to output disable latency is equivalent to the /CAS  
Latency.  
Read Interrupted by Terminate (BL=4)  
CK  
Command  
DQ  
READ  
TBST  
Q0  
Q1  
Q1  
Q2  
Command  
DQ  
READ  
TBST  
CL=3  
Q0  
Q0  
Command  
DQ  
READ TBST  
Command  
DQ  
TBST  
Q1  
READ  
READ  
Q0  
Q2  
Command  
DQ  
TBST  
Q0  
CL=2  
Q1  
Command  
DQ  
TBST  
READ  
Q0  
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Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
[ Write Interrupted by Write ]  
Burst write operation can be interrupted by new write of any active bank. Random  
column access is allowed. WRITE to WRITE interval is minimum 1 CK.  
Write Interrupted by Write (BL=4)  
CK  
Command  
A0-9, 11  
A10  
Write  
Ya  
Write Write  
Yb  
0
Yc  
0
0
BA0,1  
00  
00  
10  
DQ  
Da0 Da1 Da2 Db0 Dc0 Dc1 Dc2 Dc3  
[ Write Interrupted by Read ]  
Burst write operation can be interrupted by read of any active bank. Random column  
access is allowed. WRITE to READ interval is minimum 1 CK. The input data on DQ  
at the interrupting READ cycle is "don't care".  
Write Interrupted by Read (BL=4, CL=2)  
CK  
Command  
ACT  
Write  
READ  
A0-9,11  
A10  
Xa  
Xa  
Ya  
0
Yb  
0
00  
BA0,1  
DQ  
00  
00  
Da0 Da1  
Qb0 Qb1  
Qb2 Qb3  
don't care  
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MIT-DS-0339-0.0  
17.Sep.1999  
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Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
[ Write Interrupted by Precharge ]  
Burst write operation can be interrupted by precharge of the same bank. Write  
recovery time(tWR) is required from the last data to PRE command. During write  
recovery, data inputs must be masked by DQM.  
Write Interrupted by Precharge (BL=4)  
CK  
Command  
ACT  
Write  
PRE  
ACT  
tRP  
Xa  
0
Ya  
0
Xa  
0
A0-9,11  
A10  
0
00  
00  
00  
00  
BA0,1  
DQMB0-7  
DQ  
tWR  
Da0 Da1  
[ Write Interrupted by Burst Terminate ]  
Burst terminate command can terminate burst write operation. In this case, the  
write recovery time is not required and the bank remains active.The WRITE to TBST  
minimum interval is 1CK.  
Write Interrupted by Burst Terminate (BL=4)  
CK  
Command  
ACT  
Xa  
Write  
Ya  
0
TBST  
Write  
Yb  
0
A0-9,11  
A10  
0
BA0,1  
DQ  
00  
00  
00  
Da0 Da1  
Db0 Db1 Db2 Db3  
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Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
[ Write with Auto-Precharge interrupted by Write or Read to anotehr Bank ]  
Burst write with auto-precharge can be interrupted by write or read toanother bank.  
Next ACT command can be issued after (BL+tWR-1+tRP) from the WRITEA. Auto-  
precharge interrrupted by a command to the same bank is inhibited.  
WRITEA Interrupted by WRITE to another bank (BL=4)  
CK  
Command  
Write  
Write  
BL  
ACT  
tRP  
Ya  
1
Ya  
0
Xa  
Xa  
A0-9,11  
A10  
tWR  
00  
10  
00  
BA0,1  
DQ  
Da0 Da1 Db0 Db1 Db2 Db3  
activate  
auto-precharge  
interrupted  
WRITEA interrupted by READ to another bank (CL=2,BL=4)  
CK  
Write  
Ya  
1
Command  
Read  
BL  
ACT  
Xa  
tRP  
Yb  
A0-9,11  
A10  
tWR  
0
Xa  
BA0,1  
DQ  
00  
10  
00  
Da0 Da1  
Db0 Db1 Db2 Db3  
activate  
auto-precharge interrupted  
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Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
[ Read with Auto-Precharge interrupted by Read to anotehr Bank ]  
Burst read with auto-precharge can be interrupted by read toanother bank. Next  
ACT command can be issued after (BL+tRP) from the READA. Auto-precharge  
interrrupted by a command to the same bank is inhibited.  
READA Interrupted by READ to another bank (CL=2,BL=4)  
CK  
Command  
Read  
Read  
BL  
ACT  
tRP  
Ya  
1
Ya  
0
Xa  
Xa  
A0-9,11  
A10  
tWR  
00  
10  
00  
BA0,1  
DQ  
Qa0 Qa1 Qb0 Qb1 Qb2 Qb3  
activate  
auto-precharge  
interrupted  
Full Page Burst  
Full page burst length is available for only the sequential burst type. Full page burst  
read or write is repeated untill aPrecharge or a Burst Terminate command is  
issued. In case of the full page burst , a read or write with auto-precharge command  
is illegal.  
Single Write  
When single write mode is set, burst length for write is always one, independently  
of Burst Length defined by (A2-0).  
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MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
AUTO REFRESH  
Single cycle of auto-refresh is initiated with a REFA(/CS=/RAS=/CAS=L,  
/WE=/CKE=H) command. The refresh address is generated internally. 4096 REFA  
cycle within 64ms refresh 64Mbit memory cells. The auto-refresh is performed on  
4banks concurrently. Before performing an auto-refresh, all banks must be in the  
idle state. Auto-refresh to auto-refresh interval is minimum tRFC. Any command  
must not be issued before tRFC from the REFA command.  
Auto-Refresh  
CK  
/S  
NOP or DESLECT  
/RAS  
/CAS  
/WE  
CKE  
minimum tRFC  
A0-11  
BA0,1  
Auto Refresh on All Banks  
Auto Refresh on All Banks  
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Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
SELF REFRESH  
Self-refresh mode is entered by issuing a REFS command (/CS=/RAS=/CAS=L,  
/WE=H, CKE=L). Once the self-refresh is initiated, it is maintained as log as CKE is  
kept low.During the self-refresh mode, CKE is asynchronous and the only enabled  
input , all other inputs including CK are disabled and ignored, so that power  
consumption due to synchronous inputs is saved. To exit the self-refresh, supplying  
stable CK inputs, asserting DESEL or NOP command and then asserting CKE=H.  
After tRFC from the 1st CK edge follwing CKE=H, all banks are in the idle state and  
a new command can be issued after, but DESEL or NOP commands must be  
asserted till then.  
Self-Refresh  
CK  
Stable CK  
/S  
NOP  
/RAS  
/CAS  
/WE  
CKE  
new command  
A0-11  
BA0,1  
X
00  
Self Refresh Entry  
Self Refresh Exit  
minimum tRFC  
for recovery  
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MITSUBISHI LSIs  
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MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
CLK SUSPEND and POWER DOWN  
CKE controls the internal CLK at the following cycle. Figure below shows how CKE  
works. By negating CKE, the next internal CLK is suspended. The purpose of CLK  
suspend is power down, output suspend or input suspend. CKE is a synchronous  
input except during the self-refresh mode. CLK suspend can be performed either  
when the banks are active or idle. A command at the suspended cycle is ignored.  
CK  
(ext.CLK)  
tIH  
tIS  
tIH  
tIS  
CKE  
int.CLK  
Power Down by CKE  
CK  
CKE  
Standby Power Down  
Active Power Down  
Command  
PRE NOP NOP NOP  
CKE  
Command  
NOP NOP NOP  
ACT  
DQ Suspend by CKE  
CK  
CKE  
Command  
Write  
D0  
READ  
DQ  
D1  
D2  
D3  
Q0  
Q1  
Q2  
Q3  
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Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
DQM CONTROL  
DQMB0-7 is a dual function signal defined as the data mask for writes and the  
output disable for reads. During writes, DQMB0-7 masks input data word by word.  
DQMB0-7 to Data In latency is 0.  
During reads, DQMB0-7 forces output to Hi-Z word by word. DQMB0-7 to output Hi-Z  
latency is 2.  
DQM Function  
CK  
Command  
DQMB0-7  
READ  
Write  
DQ  
D0  
D2  
D3  
Q0  
Q1  
Q3  
masked by DQMB=H  
disabled by DQMB=H  
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Preliminary Spec.  
MITSUBISHI LSIs  
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MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
ABSOLUTE MAXIMUM RATINGS  
Symbol  
Vdd  
Parameter  
Supply Voltage  
Input Voltage  
Condition  
Ratings  
Unit  
V
with respect to Vss  
-0.5 ~ 4.6  
VI  
with respect to Vss -0.5 ~ Vdd+0.5  
with respect to Vss -0.5 ~ Vdd+0.5  
50  
V
VO  
IO  
Output Voltage  
Output Current  
V
mA  
W
Ta=25°C  
8
Pd  
Power Dissipation  
Operating Temperature  
Topr  
0 ~ 70  
°C  
°C  
Tstg  
Storage Temperature  
-40 ~ 100  
RECOMMENDED OPERATING CONDITION  
(Ta=0 ~ 70°C, unless otherwise noted)  
Limits  
Parameter  
Symbol  
Unit  
Min.  
3.0  
0
Typ.  
3.3  
0
Max.  
3.6  
Vdd  
Vss  
VIH  
Supply Voltage  
Supply Voltage  
V
V
V
V
0
High-Level Input Voltage all inputs  
Low-Level Input Voltage all inputs  
2.0  
-0.3  
Vdd+0.3  
0.8  
VIL  
Note)  
1:VIH(max)=5.5V for pulse width less than 10ns.  
2.VIL(min)=-1.0 for pulse width less than 10ns.  
CAPACITANCE  
(Ta=0 ~ 70°C, Vdd = 3.3 ± 0.3V, Vss = 0V, unless otherwise noted)  
Limits(max.) Unit  
Symbol  
Parameter  
Test Condition  
-6  
-7,-8  
60  
pF  
(-6)  
45.5  
CI(A) Input Capacitance, address pin  
@1MHz  
1.4V bias  
200mV swing  
pF  
pF  
pF  
Input Capacitance, /RAS,/CAS,/WE  
45.5  
32.3  
16.5  
60  
40  
22  
CI(C)  
(-7,-8)  
CI(K) Input Capacitance, CK pin  
VI = Vss  
f=1MHz  
Vi=25mVrms  
Input Capacitance, I/O pin  
CI/O  
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Preliminary Spec.  
MITSUBISHI LSIs  
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MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
AVERAGE SUPPLY CURRENT from Vdd  
(Ta=0 ~70°C, Vdd = 3.3 ± 0.3V, Vss = 0V, unless otherwise noted)  
Limits  
(max)  
Parameter  
operating current  
Symbol  
Test Condition  
Unit  
mA  
-6  
600  
16  
-7, -8  
tRC=min.tCLK=min, BL=1,CL=3  
CKE=L,tCLK=15ns, /CS>Vcc-0.2V  
560  
16  
Icc1  
one bank activ e (discrete)  
precharge stanby  
current  
mA  
mA  
Icc2P  
in power-down mode  
8
160  
120  
8
160  
120  
Icc2PS CKE=CLK=L, /CS>Vcc-0.2V  
precharge stanby current  
in non power-down mode  
mA  
mA  
Icc2N CKE=H,tCLK=15ns,VIH>Vcc-0.2V,VIL<0.2V  
Icc2NS  
CKE=H,CLK=L,VIH>Vcc-0.2V,VIL<0.2V(f ixed)  
active stanby current  
in non power-down mode  
one bank activ e (discrete)  
mA  
mA  
mA  
240  
200  
240  
200  
CKE=H,tCLK=15ns  
Icc3N  
Icc3NS  
Icc4  
CKE=H,CLK=L  
tCLK=min, BL=4, CL=3,all banks active(discerte)  
720  
560  
880  
burst current  
auto-refresh current  
tRC=min, tCLK=min  
CKE <0.2V  
Icc5  
1040  
mA  
mA  
Icc6  
8
8
self-refresh current  
Note)  
1:Icc(max) is specified at the output open condition.  
2.Input signals are changed one time during 30ns.  
AC OPERATING CONDITIONS AND CHARACTERISTICS  
(Ta=0 ~ 70°C, Vdd = 3.3 ± 0.3V, Vss = 0V, unless otherwise noted)  
Limits  
Symbol  
Parameter  
Test Condition  
IOH=-2mA  
Unit  
Min. Max.  
2.4  
VOH(DC)  
VOL(DC)  
High-Level Output Voltage(DC)  
Low-Level Output Voltage(DC)  
V
V
0.4  
IOL=2mA  
Q floating VO=0 ~ Vdd  
-5  
5
uA  
IOZ  
Off-stare Output Current  
-40  
Input Current  
uA  
VIH=0 ~ Vdd+0.3V  
40  
Ii  
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17.Sep.1999  
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Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
AC TIMING REQUIREMENTS (SDRAM Component)  
(Ta=0 ~ 70°C, Vdd = 3.3 ± 0.3V, Vss = 0V, unless otherwise noted)  
Input Pulse Levels: 0.8V to 2.0V  
Input Timing Measurement Level: 1.4V  
Symbol Parameter  
Limits  
-7  
-6  
-8  
Unit  
Min. Max.  
Min. Max. Min. Max.  
CL=2  
tCLK  
10  
10  
13  
ns  
CK cycle time  
CL=3  
7.5  
2.5  
2.5  
1
1.5  
0.8  
10  
3
3
1
2
1
70  
80  
20  
10  
3
3
1
2
1
70  
80  
20  
ns  
ns  
ns  
10 ns  
ns  
tCH  
CK High pulse width  
tCL  
tT  
tIS  
CK Low pilse width  
Transition time of CK  
Input Setup time(all inputs)  
10  
10  
tIH  
tRC  
Input Hold time(all inputs)  
Row cycle time  
ns  
ns  
ns  
ns  
67.5  
75  
tRFC Refresh cycle time  
tRCD Row to Column Delay  
20  
tRAS  
tRP  
tWR  
tRRD  
Row Active time  
Row Precharge time  
Write Recovery time  
45 100K  
50 100K  
50 100K ns  
20  
15  
15  
20  
20  
20  
10  
20  
20  
20  
10  
ns  
ns  
ns  
ns  
Act to Act Deley time  
tRSC Mode Register Set Cycle time 10  
tSRX Self Refresh Exit time  
tPDE Power Down Exit time  
tREF Refresh Interval time  
7.5  
7.5  
10  
10  
64  
10  
10  
ns  
ns  
64  
64 ms  
Note:1 The timing requirements are assumed tT=1ns.If tT is longer than 1ns,(tT-1)ns  
should be added to the parameter.  
Any AC timing is  
referenced to the input  
signal crossing  
through 1.4V.  
1.4V  
1.4V  
CK  
Signal  
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ELECTRIC  
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Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
SWITCHING CHARACTERISTICS (SDRAM Component)  
(Ta=0 ~ 70°C, Vdd = 3.3 ± 0.3V, Vss = 0V, unless otherwise note3)  
Limits  
-6  
-7  
-8  
Symbol Parameter  
Unit  
ns  
Max.  
6
Max. Min. Max.  
Min.  
Min.  
tAC  
Access time from CK  
CL=2  
6
6
7
6
CL=3  
CL=2  
ns  
ns  
5.4  
Output Hold time  
from CK  
3
3
3
3
3
tOH  
CL=3  
2.7  
ns  
Delay time, output low  
impedance from CK  
Delay time, output high  
impedance from CK  
tOLZ  
tOHZ  
0
0
3
0
3
ns  
ns  
2.7  
5.4  
6
6
Note)  
1 If clock rising time is longer than 1ns,(tT/2-0.5)ns should be added to parameter.  
Output Load Condition  
VTT=1.4V  
For -7,-8  
CK  
1.4V  
50½  
VREF=1.4V  
VOUT  
DQ  
1.4V  
50pF  
50pF  
Output Timing  
Measurement  
Reference Point  
For -6  
VOUT  
1.4V  
1.4V  
CK  
tOLZ  
tAC  
DQ  
tOHZ  
tOH  
MITSUBISHI  
ELECTRIC  
MIT-DS-0339-0.0  
17.Sep.1999  
( 34/ 55 )  
Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
Burst Write (single bank) @BL=4  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17  
CLK  
/CS  
tRC  
tRAS  
tRP  
/RAS  
/CAS  
/WE  
tRCD  
tRCD  
tWR  
CKE  
DQM  
A0-8  
A10  
X
X
X
0
Y
X
X
X
0
Y
A9,11  
BA0,1  
DQ  
0
0
0
D0  
D0 D0  
D0  
D0 D0  
WRITE#0  
D0  
D0  
ACT#0  
WRITE#0  
PRE#0  
ACT#0  
Italic parameter indicates minimum case  
MITSUBISHI  
ELECTRIC  
MIT-DS-0339-0.0  
17.Sep.1999  
( 35/ 55 )  
Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
Burst Write (multi bank) @BL=4  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17  
CLK  
/CS  
tRC  
tRRD  
tRRD  
tRP  
tRAS  
/RAS  
/CAS  
/WE  
tRCD  
tRCD  
tWR  
tWR  
CKE  
DQM  
A0-8  
X
X
X
0
X
Y
Y
X
X
X
0
X
X
X
2
Y
X
X
1
A10  
A9,11  
0
1
0
1
0
BA0,1  
DQ  
D0  
D0 D0  
D0  
D1 D1  
D1  
D1  
D0  
D0  
D0 D0  
ACT#0  
WRITE#0  
ACT#1  
PRE#0  
WRITE#1  
ACT#0 ACT#2 WRITE#0  
PRE#1  
Italic parameter indicates minimum case  
MITSUBISHI  
ELECTRIC  
36  
MIT-DS-0339-0.0  
17.Sep.1999  
(
/ 55 )  
Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
Burst Read (single bank) @BL=4 CL=3  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17  
CLK  
/CS  
tRC  
tRAS  
tRP  
/RAS  
/CAS  
/WE  
tRCD  
tRCD  
CKE  
DQM  
A0-8  
DQM read latency =2  
X
X
X
0
Y
X
X
X
0
Y
A10  
A9,11  
0
0
0
BA0,1  
DQ  
CL=3  
Q0  
Q0 Q0  
Q0  
Q0 Q0  
ACT#0  
READ#0  
PRE#0  
ACT#0  
READ#0  
READ to PRE ³BL allows full data out  
Italic parameter indicates minimum case  
MITSUBISHI  
ELECTRIC  
37  
MIT-DS-0339-0.0  
17.Sep.1999  
(
/ 55 )  
Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
Burst Read (multiple bank) @BL=4 CL=3  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17  
CLK  
/CS  
tRC  
tRRD  
tRRD  
tRP  
tRAS  
/RAS  
/CAS  
/WE  
CKE  
tRCD  
tRCD  
DQM  
A0-8  
DQM read latency =2  
Y
X
X
X
0
X
Y
X
X
X
X
X
X
Y
X
X
1
A10  
A9,11  
BA0,1  
DQ  
0
1
0
0
1
2
0
CL=3  
CL=3  
Q0  
Q0 Q0  
Q0  
Q1 Q1  
Q1  
Q1  
Q0  
ACT#0  
READ#0  
ACT#1  
PRE#0  
READ#1  
ACT#0  
READ#0  
PRE#1 ACT#2  
Italic parameter indicates minimum case  
MITSUBISHI  
ELECTRIC  
MIT-DS-0339-0.0  
17.Sep.1999  
(
/ 55 )  
38  
Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
Burst Write (multi bank) with Auto-Precharge @BL=4  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17  
CLK  
/CS  
tRC  
tRRD  
tRRD  
/RAS  
/CAS  
/WE  
tRCD  
tRCD  
tRCD  
BL-1+ tWR + tRP  
BL-1+ tWR + tRP  
CKE  
DQM  
A0-8  
X
X
X
0
X
Y
Y
X
X
X
0
Y
X
X
X
1
Y
X
X
1
A10  
A9,11  
0
1
0
1
BA0,1  
DQ  
D0  
D0  
D0  
D0  
D1 D1  
D1  
D1  
D0 D0  
D0  
D0 D1  
ACT#0  
ACT#1  
WRITE#0 with  
AutoPrecharge  
ACT#0  
WRITE#0  
ACT#1  
WRITE#1 with  
AutoPrecharge  
WRITE#1  
Italic parameter indicates minimum case  
MITSUBISHI  
ELECTRIC  
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MIT-DS-0339-0.0  
17.Sep.1999  
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39  
Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
Burst Read (multiple bank) with Auto-Precharge @BL=4 CL=3  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17  
CLK  
/CS  
tRC  
tRRD  
tRRD  
/RAS  
/CAS  
/WE  
tRCD  
tRCD  
tRCD  
BL+tRP  
BL+tRP  
CKE  
DQM  
A0-8  
A10  
DQM read latency =2  
Y
X
X
X
0
X
Y
X
X
X
Y
X
X
X
Y
X
X
1
A9,11  
BA0,1  
DQ  
0
1
0
0
1
1
CL=3  
CL=3  
CL=3  
Q0  
Q0 Q0  
Q0  
Q1 Q1  
Q1  
Q1  
Q0 Q0  
ACT#0  
ACT#1  
READ#0 with  
Auto-Precharge  
ACT#0  
READ#1 with  
Auto-Precharge  
READ#0  
ACT#1  
Italic parameter indicates minimum case  
MITSUBISHI  
ELECTRIC  
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MIT-DS-0339-0.0  
17.Sep.1999  
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40  
Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
Page Mode Burst Write (multi bank) @BL=4  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17  
CLK  
/CS  
tRRD  
/RAS  
/CAS  
/WE  
tRCD  
CKE  
DQM  
A0-8  
X
X
X
0
X
Y
Y
Y
Y
X
X
1
A10  
A9,11  
BA0,1  
DQ  
0
0
1
0
D0  
D0 D0  
D0  
D0  
D0  
D0  
D0 D1  
D1  
D1 D1  
D0  
D0 D0  
ACT#0  
WRITE#0  
ACT#1  
WRITE#0  
WRITE#0  
WRITE#1  
Italic parameter indicates minimum case  
MITSUBISHI  
ELECTRIC  
MIT-DS-0339-0.0  
17.Sep.1999  
(
/ 55 )  
41  
Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
Page Mode Burst Read (multi bank) @BL=4 CL=3  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17  
CLK  
/CS  
tRRD  
/RAS  
/CAS  
/WE  
tRCD  
CKE  
DQM  
A0-8  
A10  
DQM read latency=2  
Y
X
X
X
0
X
Y
Y
Y
X
X
1
A9,11  
BA0,1  
DQ  
0
0
1
0
CL=3  
CL=3  
CL=3  
Q0  
Q0 Q0  
Q0  
Q0  
Q0  
Q0  
Q0 Q1  
Q1  
Q1 Q1  
ACT#0  
READ#0  
ACT#1  
READ#0  
READ#0  
READ#1  
Italic parameter indicates minimum case  
MITSUBISHI  
ELECTRIC  
MIT-DS-0339-0.0  
17.Sep.1999  
42  
(
/ 55 )  
Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
Write Interrupted by Write / Read @BL=4  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17  
CLK  
/CS  
tRRD  
/RAS  
/CAS  
/WE  
CKE  
tRCD  
tCCD  
DQM  
A0-8  
X
X
X
0
X
Y
Y
Y
Y
Y
X
X
1
A10  
A9,11  
BA0,1  
0
0
0
1
0
CL=3  
D0  
D0  
D0 D0  
D0 D0  
D1  
D1  
Q0  
Q0  
Q0 Q0  
DQ  
ACT#0  
WRITE#0 WRITE#0 WRITE#0  
READ#0  
ACT#1  
WRITE#1  
Burst Write can be interrupted by Write or Read of any active bank.  
Italic parameter indicates minimum case  
MITSUBISHI  
ELECTRIC  
MIT-DS-0339-0.0  
17.Sep.1999  
43  
(
/ 55 )  
Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
Read Interrupted by Read / Write @BL=4 CL=3  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17  
CLK  
/CS  
tRRD  
/RAS  
/CAS  
/WE  
tRCD  
CKE  
DQM  
A0-8  
A10  
DQM read latency=2  
X
X
X
0
X
Y
Y
Y
Y
Y
Y
X
X
1
A9,11  
BA0,1  
DQ  
0
0
0
1
0
0
Q0  
Q0 Q0 Q0  
Q0  
Q0  
Q1  
Q1 Q0  
D0 D0  
ACT#0  
READ#0 READ#0 READ#0  
ACT#1  
READ#0  
WRITE#0  
READ#1  
blank to prevent bus contention  
Burst Read can be interrupted by Read or Write of any active bank.  
Italic parameter indicates minimum case  
MITSUBISHI  
ELECTRIC  
MIT-DS-0339-0.0  
17.Sep.1999  
44  
(
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Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
Write Interrupted by Precharge @BL=4  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17  
CLK  
/CS  
tRRD  
/RAS  
/CAS  
/WE  
tRCD  
CKE  
DQM  
A0-8  
A10  
X
X
X
0
X
Y
Y
X
X
X
1
Y
X
X
1
A9,11  
BA0,1  
DQ  
0
1
0
1
1
D0 D0  
D0  
D1 D1  
D1  
D1 D1  
D0  
ACT#0  
WRITE#0  
PRE#0  
ACT#1  
WRITE#1  
PRE#1  
ACT#1  
WRITE#1  
Burst Write is interrupted by  
Precharge of the same bank.  
Burst Write is not interrupted  
by Precharge of the other bank.  
Italic parameter indicates minimum case  
MITSUBISHI  
ELECTRIC  
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MIT-DS-0339-0.0  
17.Sep.1999  
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45  
Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
Read Interrupted by Precharge @BL=4 CL=3  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17  
CLK  
/CS  
tRRD  
tRP  
/RAS  
/CAS  
/WE  
tRCD  
tRCD  
CKE  
DQM  
A0-8  
A10  
DQM read latency=2  
Y
X
X
X
0
X
Y
X
X
X
1
Y
X
X
1
A9,11  
BA0,1  
DQ  
0
1
0
1
1
Q0  
Q0 Q0  
Q0  
Q1 Q1  
ACT#0  
READ#0  
ACT#1  
PRE#0  
READ#1  
PRE#1  
ACT#1  
READ#1  
Burst Read is interrupted  
by Precharge of the same bank.  
Burst Read is not interrupted  
by Precharge of the other bank.  
Italic parameter indicates minimum case  
MITSUBISHI  
ELECTRIC  
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MIT-DS-0339-0.0  
17.Sep.1999  
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46  
Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
Mode Register Setting  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17  
CLK  
/CS  
tRSC  
tRC  
/RAS  
/CAS  
/WE  
tRCD  
CKE  
DQM  
A0-8  
A10  
M
X
X
X
0
Y
A9,11  
BA0,1  
DQ  
0
0
D0  
D0 D0 D0  
Auto-Ref (last of 8 cycles)  
Mode  
ACT#0  
WRITE#0  
Register  
Setting  
Italic parameter indicates minimum case  
MITSUBISHI  
ELECTRIC  
MIT-DS-0339-0.0  
17.Sep.1999  
(
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47  
Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
Auto-Refresh @BL=4  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17  
CLK  
/CS  
tRC  
/RAS  
/CAS  
/WE  
tRCD  
CKE  
DQM  
A0-8  
X
X
X
0
Y
A10  
A9,11  
BA0,1  
DQ  
0
D0  
D0 D0  
D0  
Auto-Refresh  
Before Auto-Refresh,  
ACT#0  
WRITE#0  
After tRC from Auto-Refresh,  
all banks are idle state.  
all banks must be idle state.  
Italic parameter indicates minimum case  
MITSUBISHI  
ELECTRIC  
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17.Sep.1999  
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Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
Self-Refresh  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17  
CLK  
/CS  
tRC  
CLK can be stopped  
/RAS  
/CAS  
/WE  
tSRX  
CKE  
DQM  
A0-8  
A10  
CKE must be low to maintain Self-Refresh  
X
X
X
0
A9,11  
BA0,1  
DQ  
Self-Refresh Entry  
Self-Refresh Exit  
ACT#0  
Before Self-Refresh Entry,  
all banks must be idle state.  
After tRC from Self-Refresh Exit,  
all banks are idle state.  
Italic parameter indicates minimum case  
MITSUBISHI  
ELECTRIC  
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MIT-DS-0339-0.0  
17.Sep.1999  
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49  
Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
DQM Write Mask @BL=4  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17  
CLK  
/CS  
/RAS  
/CAS  
/WE  
tRCD  
CKE  
DQM  
A0-8  
A10  
X
X
X
0
Y
Y
Y
A9,11  
BA0,1  
DQ  
0
0
0
masked  
masked  
D0  
D0 D0  
D0  
D0  
D0  
D0  
ACT#0  
WRITE#0  
WRITE#0  
WRITE#0  
Italic parameter indicates minimum case  
MITSUBISHI  
ELECTRIC  
MIT-DS-0339-0.0  
17.Sep.1999  
(
/ 55 )  
50  
Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
DQM Read Mask @BL=4 CL=3  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17  
CLK  
/CS  
/RAS  
/CAS  
/WE  
CKE  
tRCD  
DQM read latency=2  
DQM  
A0-8  
X
X
X
0
Y
Y
Y
A10  
A9,11  
BA0,1  
0
0
0
masked  
masked  
Q0  
Q0 Q0  
Q0  
Q0  
Q0  
Q0  
DQ  
ACT#0  
READ#0  
READ#0  
READ#0  
Italic parameter indicates minimum case  
MITSUBISHI  
ELECTRIC  
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(
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Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
Power Down  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17  
CLK  
/CS  
/RAS  
/CAS  
/WE  
Standby Power Down  
Active Power Down  
CKE  
DQM  
A0-8  
CKE latency=1  
X
X
X
0
A10  
A9,11  
BA0,1  
DQ  
Precharge All  
ACT#0  
Italic parameter indicates minimum case  
MITSUBISHI  
ELECTRIC  
MIT-DS-0339-0.0  
17.Sep.1999  
( 52/ 55 )  
Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
CLK Suspend @BL=4 CL=3  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17  
CLK  
/CS  
/RAS  
/CAS  
/WE  
tRCD  
CKE  
DQM  
A0-8  
A10  
CKE latency=1  
CKE latency=1  
X
X
X
0
Y
Y
A9,11  
BA0,1  
DQ  
0
0
D0  
D0  
D0  
Q0  
Q0  
Q0  
Q0  
D0  
ACT#0  
WRITE#0  
CLK suspended  
READ#0  
CLK suspended  
Italic parameter indicates minimum case  
MITSUBISHI  
ELECTRIC  
MIT-DS-0339-0.0  
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53  
(
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Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
OUTLINE  
MITSUBISHI  
ELECTRIC  
MIT-DS-0339-0.0  
17.Sep.1999  
( 54/ 55 )  
Preliminary Spec.  
MITSUBISHI LSIs  
Some contents are subject to change without notice.  
MH8S64DALD -6,-7,-8  
536870912-BIT (8388608 - WORD BY 64-BIT)Synchronous DRAM  
Keep safety first in your circuit designs!  
Mitsubishi Electric Corporation puts the maximum effort into making  
semiconductor products better and more reliable,but there is always the  
possibility that trouble may occur with them. Trouble with semiconductors  
consideration to safety when making your circuit designs,with appropriate  
measures such as (i) placement of substitutive,auxiliary circuits,(ii) use of  
non-flammable material or (iii) prevention against any malfunction or mishap.  
Notes regarding these materials  
1.These materials are intended as a reference to assist our customers in the  
selection of the Mitsubishi semiconductor product best suited to the  
customer's application;they do not convey any license under any  
intellectual property rights,or any other rights,belonging to Mitsubishi  
Electric Corporation or a third party.  
2.Mitsubishi Electric Corporation assumes no responsibility for any damage,  
or infringement of any third-party's rights,originating in the use of any  
product data,diagrams,charts or circuit application examples contained in  
these materials.  
3.All information contained in these materials,including product data,  
diagrams and charts,represent information on products at the time of  
publication of these materials,and are subject to change by Mitsubishi  
Electric Corporation without notice due to product improvements or other  
reasons. It is therefore recommended that customers contact Mitsubishi  
Electric Corporation or an authorized Mitsubishi Semiconductor product  
distributor for the latest product information before purchasing a product  
listed herein.  
4.Mitsubishi Electric Corporation semiconductors are not designed or  
manufactured for use in a device or system that is used under  
circumstances in which human life is potentially at stake. Please contact  
Mitsubishi Electric Corporation or an authorized Mitsubishi Semiconductor  
product distributor when considering the use of a product contained herein  
for special applications,such as apparatus or systems for transportation,  
vehicular,medical,aerospace,nuclear,or undersea repeater use.  
5.The prior written approval of Mitsubishi Electric Corporation is necessary to  
reprint or reproduce in whole or in part these materials.  
6.If these products or technologies are subject the Japanese export  
control restrictions,they must be exported under a license from the  
Japanese government and cannot be imported into a country other than  
the approved destination.  
Any diversion or reexport contrary to the export control laws and  
regulations of Japan and/or the country of destination is prohibited.  
7.Please contact Mitsubishi Electric Corporation or an authorized Mitsubishi  
Semiconductor product distributor for further details on these materials or  
the products contained therein.  
MITSUBISHI  
ELECTRIC  
MIT-DS-0339-0.0  
17.Sep.1999  
55  
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