EBE51AD8AJFA-6E-E [ELPIDA]
512MB Registered DDR2 SDRAM DIMM; 注册512MB DDR2 SDRAM DIMM型号: | EBE51AD8AJFA-6E-E |
厂家: | ELPIDA MEMORY |
描述: | 512MB Registered DDR2 SDRAM DIMM |
文件: | 总28页 (文件大小:230K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
DATA SHEET
512MB Registered DDR2 SDRAM DIMM
EBE51AD8AJFA (64M words × 72 bits, 1 Rank)
Specifications
Features
• Density: 512MB
• Double-data-rate architecture; two data transfers per
clock cycle
• Organization
• The high-speed data transfer is realized by the 4 bits
prefetch pipelined architecture
64M words × 72 bits, 1 rank
• Mounting 9 pieces of 512M bits DDR2 SDRAM
sealed in FBGA
• Bi-directional differential data strobe (DQS and /DQS)
is transmitted/received with data for capturing data at
the receiver
• Package: 240-pin socket type dual in line memory
module (DIMM)
• DQS is edge-aligned with data for READs; center-
aligned with data for WRITEs
PCB height: 30.0mm
Lead pitch: 1.0mm
• Differential clock inputs (CK and /CK)
Lead-free (RoHS compliant)
• Power supply: VDD = 1.8V ± 0.1V
• Data rate: 667Mbps (max.)
• DLL aligns DQ and DQS transitions with CK
transitions
• Commands entered on each positive CK edge; data
and data mask referenced to both edges of DQS
• Four internal banks for concurrent operation
(components)
• Data mask (DM) for write data
• Interface: SSTL_18
• Posted /CAS by programmable additive latency for
better command and data bus efficiency
• Burst lengths (BL): 4, 8
• /CAS Latency (CL): 3, 4, 5
• Off-Chip-Driver Impedance Adjustment and On-Die-
Termination for better signal quality
• Precharge: auto precharge option for each burst
• /DQS can be disabled for single-ended Data Strobe
access
operation
• Refresh: auto-refresh, self-refresh
• Refresh cycles: 8192 cycles/64ms
• 1 piece of PLL clock driver, 1 piece of register driver
and 1 piece of serial EEPROM (2K bits EEPROM) for
Presence Detect (PD)
Average refresh period
7.8µs at 0°C ≤ TC ≤ +85°C
3.9µs at +85°C < TC ≤ +95°C
• Operating case temperature range
TC = 0°C to +95°C
Document No. E1037E30 (Ver. 3.0)
Date Published March 2008 (K) Japan
Printed in Japan
URL: http://www.elpida.com
Elpida Memory, Inc. 2007-2008
EBE51AD8AJFA
Ordering Information
Component
Data rate
JEDEC speed bin*1
Mbps (max.) (CL-tRCD-tRP)
Contact
pad
Part number
Package
Mounted devices
240-pin DIMM
(lead-free)
EDE5108AJSE-8E-E
EDE5108AJSE-6E-E
EBE51AD8AJFA-6E-E
667 DDR2-667 (5-5-5)
Gold
Note: 1. Module /CAS latency = component CL + 1
Pin Configurations
Front side
1 pin
64 pin65 pin
120 pin
121 pin
184 pin 185 pin
240 pin
Back side
Pin name
VDD
Pin No.
1
Pin name
VREF
VSS
Pin No.
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
Pin name
A4
Pin No.
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
Pin name
VSS
Pin No.
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
2
VDD
A2
DQ4
A3
3
DQ0
DQ5
A1
4
DQ1
VDD
VSS
VSS
VDD
Par_In
VDD
A10
VSS
VDD
5
VSS
DM0/DQS9
NU/ /DQS9
VSS
CK0
6
/DQS0
DQS0
VSS
/CK0
VDD
7
8
DQ6
A0
9
DQ2
DQ7
VDD
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
DQ3
VSS
BA1
VSS
BA0
DQ12
VDD
DQ8
VDD
/WE
DQ13
/RAS
/CS0
VDD
DQ9
VSS
VSS
/CAS
VDD
NC
DM1/DQS10
NU/ /DQS10
VSS
/DQS1
DQS1
VSS
ODT0
A13
NC
NC
VDD
/RESET
NC
VDD
VSS
DQ32
DQ33
VSS
/DQS4
DQS4
VSS
DQ34
DQ35
VSS
DQ40
NC
VSS
VSS
DQ36
DQ37
VSS
VSS
DQ14
DQ10
DQ11
VSS
DQ15
VSS
DM4/DQS13
NU/ /DQS13
VSS
DQ20
DQ16
DQ17
VSS
DQ21
VSS
DQ38
DQ39
VSS
DM2/DQS11
NU/ /DQS11
VSS
/DQS2
DQS2
VSS
DQ44
DQ45
DQ22
Data Sheet E1037E30 (Ver. 3.0)
2
EBE51AD8AJFA
Pin name
VSS
Pin No.
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
Pin name
DQ18
DQ19
VSS
Pin No.
90
Pin name
DQ41
VSS
Pin No.
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
Pin name
DQ23
VSS
Pin No.
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
91
DM5/DQS14
NU/ /DQS14
VSS
92
/DQS5
DQS5
VSS
DQ28
DQ29
VSS
DQ24
DQ25
VSS
93
94
DQ46
95
DQ42
DQ43
VSS
DM3/DQS12
NU/ /DQS12
VSS
DQ47
/DQS3
DQS3
VSS
96
VSS
97
DQ52
98
DQ48
DQ49
VSS
DQ30
DQ31
VSS
DQ53
DQ26
DQ27
VSS
99
VSS
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
NC
SA2
CB4
NC
CB0
NC
CB5
VSS
CB1
VSS
VSS
DM6/DQS15
NU/ /DQS15
VSS
VSS
/DQS6
DQS6
VSS
DM8/DQS17
NU/ /DQS17
VSS
/DQS8
DQS8
VSS
DQ54
DQ50
DQ51
VSS
CB6
DQ55
CB2
CB7
VSS
CB3
VSS
DQ60
VSS
DQ56
DQ57
VSS
VDD
DQ61
VDD
CKE0
VDD
NC
NC
VSS
VDD
DM7/DQS16
NU/ /DQS16
VSS
/DQS7
DQS7
VSS
NC
NC
/Err_Out
VDD
A11
VDD
DQ62
DQ58
DQ59
VSS
A12
DQ63
A9
VSS
A7
VDD
VDDSPD
SA0
VDD
A5
SDA
A8
SCL
A6
SA1
Data Sheet E1037E30 (Ver. 3.0)
3
EBE51AD8AJFA
Pin Description
Pin name
Function
Address input
Row address
Column address
A0 to A13
A0 to A13
A0 to A9
A10 (AP)
Auto precharge
BA0, BA1
Bank select address
Data input/output
DQ0 to DQ63
CB0 to CB7
Check bit (Data input/output)
Row address strobe command
Column address strobe command
Write enable
/RAS
/CAS
/WE
/CS0
Chip select
CKE0
Clock enable
CK0
Clock input
/CK0
Differential clock input
Input and output data strobe
Input mask
DQS0 to DQS17, /DQS0 to /DQS17
DM0 to DM8
SCL
Clock input for serial PD
Data input/output for serial PD
Serial address input
SDA
SA0 to SA2
VDD
Power for internal circuit
Power for serial EEPROM
Input reference voltage
Ground
VDDSPD
VREF
VSS
ODT0
ODT control
/RESET
NC
Reset pin (forces register and PLL inputs low) *1
No connection
Par_In*2
/Err_Out*2
NU
Parity bit for the address and control bus
Parity error found on the address and control bus
Not usable
Notes: 1. Reset pin is connected to both OE of PLL and reset to register.
2. /Err_Out (Pin No. 55) and Par_In (Pin No. 68) are for optional function to check address and command
parity.
Data Sheet E1037E30 (Ver. 3.0)
4
EBE51AD8AJFA
Serial PD Matrix
Byte No. Function described
Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 Hex value Comments
Number of bytes utilized by module
manufacturer
0
1
1
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
80H
08H
128 bytes
256 bytes
Total number of bytes in serial PD
device
2
Memory type
0
0
0
0
0
0
0
0
0
1
1
0
0
0
1
0
0
0
1
0
0
0
1
0
0
0
0
0
0
0
0
1
0
1
1
1
0
1
0
0
0
0
0
1
0
0
0
0
1
0
1
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
08H
0EH
0AH
60H
48H
00H
05H
30H
45H
DDR2 SDRAM
3
Number of row address
Number of column address
Number of DIMM ranks
Module data width
14
4
10
5
1
6
72
7
Module data width continuation
0
8
Voltage interface level of this assembly 0
SSTL 1.8V
3.0ns*1
0.45ns*1
9
DDR SDRAM cycle time, CL = 5
SDRAM access from clock (tAC)
0
0
10
ECC, Address/
Command Parity
11
DIMM configuration type
0
0
0
0
0
1
1
0
06H
12
13
14
15
Refresh rate/type
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
1
0
0
0
0
0
0
0
82H
08H
08H
00H
7.8µs
× 8
× 8
0
Primary SDRAM width
Error checking SDRAM width
Reserved
SDRAM device attributes:
Burst length supported
16
17
18
0
0
0
0
0
0
0
0
1
0
0
1
1
0
1
1
1
0
0
0
0
0
0
0
0CH
04H
38H
4,8
SDRAM device attributes: Number of
banks on SDRAM device
4
SDRAM device attributes:
/CAS latency
3, 4, 5
19
20
21
DIMM Mechanical Characteristics
DIMM type information
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
01H
01H
00H
4.00mm max.
Registered
Normal
SDRAM module attributes
Weak Driver
50Ω ODT
Support
22
SDRAM device attributes: General
Minimum clock cycle time at CL = 4
0
0
0
0
0
0
1
1
03H
23
24
25
26
27
28
29
30
31
32
0
0
0
0
0
0
0
0
1
0
0
1
1
1
0
0
0
0
0
0
1
0
0
1
1
0
1
1
0
1
1
1
1
0
1
1
1
0
0
0
1
0
0
0
1
1
1
1
0
0
1
0
0
0
1
1
1
1
0
0
0
0
0
0
0
1
0
0
0
0
1
0
0
0
0
0
0
1
0
0
3DH
50H
50H
60H
3CH
1EH
3CH
2DH
80H
20H
3.75ns*1
0.5ns*1
5.0ns*1
0.6ns*1
15ns
Maximum data access time (tAC) from
clock at CL = 4
Minimum clock cycle time at CL = 3
Maximum data access time (tAC) from
clock at CL = 3
Minimum row precharge time (tRP)
Minimum row active to row active
delay (tRRD)
7.5ns
Minimum /RAS to /CAS delay (tRCD)
15ns
Minimum active to precharge time
(tRAS)
45ns
Module rank density
512M byte
0.20ns*1
Address and command setup time
before clock (tIS)
Address and command hold time after
clock (tIH)
33
34
0
0
0
0
1
0
0
1
0
0
1
0
1
0
1
0
27H
10H
0.27ns*1
0.10ns*1
Data input setup time before clock
(tDS)
Data Sheet E1037E30 (Ver. 3.0)
5
EBE51AD8AJFA
Byte No. Function described
Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 Hex value Comments
35
36
Data input hold time after clock (tDH)
0
0
0
0
0
1
1
1
0
1
1
1
1
0
1
0
17H
3CH
0.17ns*1
15ns*1
Write recovery time (tWR)
Internal write to read command delay
(tWTR)
37
38
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
1EH
1EH
7.5ns*1
7.5ns*1
Internal read to precharge command
delay (tRTP)
39
40
41
Memory analysis probe characteristics 0
0
0
0
0
0
1
0
0
1
0
0
1
0
0
1
0
0
0
0
0
0
00H
00H
3CH
TBD
Extension of Byte 41 and 42
Active command period (tRC)
0
0
Undefined
60ns*1
Auto refresh to active/
Auto refresh command cycle (tRFC)
42
0
1
1
0
1
0
0
1
69H
105ns*1
43
SDRAM tCK cycle max. (tCK max.)
Dout to DQS skew
1
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
1
0
0
0
1
1
0
1
0
1
0
0
0
0
0
0
1
0
0
1
0
0
1
1
0
1
0
0
0
0
1
0
0
1
80H
18H
22H
0FH
00H
12H
95H
8ns*1
44
0.24ns*1
0.34ns*1
15µs
45
Data hold skew (tQHS)
PLL relock time
46
47 to 61
62
SPD Revision
Rev. 1.2
63
Checksum for bytes 0 to 62
Continuation
code
64 to 65
Manufacturer’s JEDEC ID code
0
1
1
1
1
1
1
1
7FH
66
Manufacturer’s JEDEC ID code
Manufacturer’s JEDEC ID code
1
0
1
0
1
0
1
0
1
0
1
0
1
0
0
0
FEH
00H
Elpida Memory
67 to 71
(ASCII-8bit
code)
72
Manufacturing location
×
×
×
×
×
×
×
×
××
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
Module part number
Module part number
Module part number
Module part number
Module part number
Module part number
Module part number
Module part number
Module part number
Module part number
Module part number
Module part number
Module part number
Module part number
Module part number
Module part number
Module part number
Module part number
Revision code
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
0
0
1
1
0
1
1
1
1
0
0
1
0
1
0
0
0
0
0
0
1
1
0
0
1
0
0
0
0
1
1
0
1
0
1
1
1
0
0
0
1
1
0
0
1
0
0
0
0
0
1
0
0
0
0
1
0
0
0
0
0
0
0
0
1
0
1
0
0
1
0
0
1
0
0
0
0
1
0
1
1
0
0
1
0
0
0
1
0
1
1
1
1
1
0
0
0
0
1
0
0
0
0
0
0
0
1
1
0
0
1
0
0
0
0
0
0
1
0
1
1
1
1
0
0
1
0
0
1
1
0
1
1
1
0
0
0
45H
42H
45H
35H
31H
41H
44H
38H
41H
4AH
46H
41H
2DH
36H
45H
2DH
45H
20H
30H
20H
E
B
E
5
1
A
D
8
A
J
F
A
—
6
E
—
E
(Space)
Initial
(Space)
Revision code
Data Sheet E1037E30 (Ver. 3.0)
6
EBE51AD8AJFA
Byte No. Function described
Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 Hex value
Comments
Year code
(BCD)
93
Manufacturing date
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
××
××
Week code
(BCD)
94
Manufacturing date
95 to 98
Module serial number
99 to 127 Manufacture specific data
Note: 1. These specifications are defined based on component specification, not module.
Data Sheet E1037E30 (Ver. 3.0)
7
EBE51AD8AJFA
Block Diagram
/RCS0
R
S
R
S
/DQS4
DQS4
/DQS0
DQS0
R
S
R
S
R
S
R
NU/
S
/CS DQS /DQS
NU/
/CS DQS /DQS
/DQS13
/RDQS
/DQS9
/RDQS
R
S
S
R
DM,
RDQS
S
S
DM/
RDQS
DM4/DQS13
DM0/DQS9
D4
D0
8
R
8
DQ0
to DQ7
R
DQ0
to DQ7
DQ32 to DQ39
/DQS5
DQ0 to DQ7
/DQS1
R
R
S
R
R
S
S
S
DQS5
/DQS14
DQS1
/DQS10
R
S
R
S
NU/
/RDQS
DM/
/RDQS
/CS DQS /DQS
NU/
/RDQS
DM/
RDQS
/CS DQS /DQS
R
R
S
R
R
S
DM5/DQS14
DQ40 to DQ47
D5
DM1/DQS10
DQ8 to DQ15
D1
8
S
8
S
DQ0
to DQ7
DQ0
to DQ7
R
S
R
S
/DQS6
DQS6
/DQS2
DQS2
R
S
R
S
R
S
R
NU/
S
/CSDQS /DQS
NU/
/CS DQS /DQS
/DQS15
/RDQS
/DQS11
/RDQS
R
S
R
S
DM/
/RDQS
DM/
RDQS
DM6/DQS15
DM2/DQS11
D6
D2
8
R
S
8
DQ0
to DQ7
R
S1
DQ0
to DQ7
DQ48 to DQ55
/DQS7
DQ16 to DQ23
/DQS3
R
R
S
R
R
S
S
S
DQS7
/DQS16
DQS3
/DQS12
R
S
R
S
NU/
/RDQS
DM/
/RDQS
/CSDQS /DQS
NU/
/RDQS
DM/
RDQS
/CS DQS /DQS
R
R
S
R
R
S
DM7/DQS16
DQ56 to DQ63
D7
DM3/DQS12
DQ24 to DQ31
D3
8
S
8
S
DQ0
to DQ7
DQ0
to DQ7
R
S
/DQS8
R
S
DQS8
/DQS17
R
S
NU/
VDDSPD
Serial PD
D0 to D8
/CS DQS /DQS
Serial PD
/RDQS
VDD
R
R
S
DM/
/RDQS
SCL
SDA
SCL
SDA
DM8/DQS17
CB0 to CB7
D8
D0 to D8
D0 to D8
VREF
VSS
8
S
U0
DQ0
to DQ7
A1 A2
WP A0
D0 to D8: 512M bits DDR2 SDRAM
U0: 2k bits EEPROM
RS: 22Ω
PLL: CUA877
Register: SSTUB32866
SA0 SA1
SA2
R
S
2
/CS0*
/RCS0 -> /CS: SDRAMs D0 to D8
R
E
G
I
S
T
E
R
R
S
R
S
R
S
BA0 to BA1
A0 to A13
/RAS
RBA0 to RBA1 -> BA0 to BA1: SDRAMs D0 to D8
RA0 to RA13 -> A0 to A13: SDRAMs D0 to D8
/RRAS -> /RAS: SDRAMs D0 to D8
/RCAS -> /CAS: SDRAMs D0 to D8
RCKE0 -> CKE: SDRAMs D0 to D8
/RWE -> /WE: SDRAMs D0 to D8
R
S
R
S
R
S
R
S
Signals for Address and Command Parity Function
/CAS
CKE0
VSS
VSS
C0 Register
C1
/WE
Par_In
PAR_IN
PPO
/QERR
ODT0
RODT0 -> ODT0: SDRAMs D0 to D8
/Err_Out
100k
/RST
/RESET
PCK7
/PCK7
Notes:
1. DQ wiring may be changed within a byte.
P
L
L
PCK0 to PCK6, PCK8, PCK9 -> CK: SDRAMs D0 to D8
/PCK0 to /PCK6, /PCK8, /PCK9 -> /CK: SDRAMs D0 to D8
CK0
/CK0
2. /CS0 connects to /DCS and VDD connects to /CSR on register.
PCK7 -> CK: register
/PCK7 -> /CK: register
/RESET
OE
Data Sheet E1037E30 (Ver. 3.0)
8
EBE51AD8AJFA
Differential Clock Net Wiring (CK0, /CK0)
0ns (nominal)
SDRAM
PLL
OUT1
120Ω
120Ω
CK0
IN
Register 1
/CK0
OUT'N'
120Ω
Feedback in
Feedback out
C
C
120Ω
Notes: 1. The clock delay from the input of the PLL clock to the input of any SDRAM or register willl
be set to 0ns (nominal).
2. Input, output and feedback clock lines are terminated from line to line as shown, and not
from line to ground.
3. Only one PLL output is shown per output type. Any additional PLL outputs will be wired
in a similar manner.
4. Termination resistors for the PLL feedback path clocks are located as close to the
input pin of the PLL as possible.
Data Sheet E1037E30 (Ver. 3.0)
9
EBE51AD8AJFA
Electrical Specifications
• All voltages are referenced to VSS (GND).
Absolute Maximum Ratings
Parameter
Symbol
VT
Value
Unit
Notes
1
Voltage on any pin relative to VSS
Supply voltage relative to VSS
Short circuit output current
Power dissipation
–0.5 to +2.3
–0.5 to +2.3
50
V
VDD
IOS
PD
V
mA
W
°C
°C
1
9
Operating case temperature
Storage temperature
TC
0 to +95
–55 to +100
1, 2
1
Tstg
Notes: 1. DDR2 SDRAM component specification.
2. Supporting 0°C to +85°C and being able to extend to +95°C with doubling auto-refresh commands in
frequency to a 32ms period (tREFI = 3.9µs) and higher temperature self-refresh entry via the control of
EMRS (2) bit A7 is required.
Caution
Exposing the device to stress above those listed in Absolute Maximum Ratings could cause
permanent damage. The device is not meant to be operated under conditions outside the limits
described in the operational section of this specification. Exposure to Absolute Maximum Rating
conditions for extended periods may affect device reliability.
DC Operating Conditions (TC = 0°C to +85°C) (DDR2 SDRAM Component Specification)
Parameter
Symbol
VDD, VDDQ
VSS
min.
typ.
1.8
0
max.
1.9
0
Unit
V
Notes
4
Supply voltage
1.7
0
V
VDDSPD
VREF
1.7
—
3.6
V
Input reference voltage
Termination voltage
DC input logic high
DC input low
0.49 × VDDQ
VREF − 0.04
VREF + 0.125
−0.3
0.50 × VDDQ 0.51 × VDDQ
V
1, 2
3
VTT
VREF
VREF + 0.04
VDDQ + 0.3
VREF – 0.125
V
VIH (DC)
VIL (DC)
VIH (AC)
VIL (AC)
V
V
AC input logic high
AC input low
VREF + 0.200
V
VREF – 0.200
V
Notes: 1. The value of VREF may be selected by the user to provide optimum noise margin in the system. Typically
the value of VREF is expected to be about 0.5 × VDDQ of the transmitting device and VREF are expected
to track variations in VDDQ.
2. Peak to peak AC noise on VREF may not exceed ±2% VREF (DC).
3. VTT of transmitting device must track VREF of receiving device.
4. VDDQ must be equal to VDD.
Data Sheet E1037E30 (Ver. 3.0)
10
EBE51AD8AJFA
AC Overshoot/Undershoot Specification (DDR2 SDRAM Component Specification)
Parameter
Pins
Specification
Unit
V
Command, Address,
CKE, ODT
Maximum peak amplitude allowed for overshoot
Maximum peak amplitude allowed for undershoot
0.5
0.5
0.8
V
Maximum overshoot area above VDD
DDR2-667
V-ns
Maximum undershoot area below VSS
DDR2-667
0.8
V-ns
Maximum peak amplitude allowed for overshoot
Maximum peak amplitude allowed for undershoot
CK, /CK
0.5
0.5
V
V
Maximum overshoot area above VDD
DDR2-667
0.23
V-ns
Maximum undershoot area below VSS
DDR2-667
0.23
0.5
V-ns
V
Maximum peak amplitude allowed for overshoot
DQ, DQS, /DQS,
UDQS, /UDQS,
LDQS, /LDQS,
Maximum peak amplitude allowed for undershoot
0.5
V
Maximum overshoot area above VDDQ
DDR2-667
RDQS, /RDQS,
DM, UDM, LDM
0.23
0.23
V-ns
V-ns
Maximum undershoot area below VSSQ
DDR2-667
Maximum amplitude
Overshoot area
VDD, VDDQ
Volts (V)
VSS, VSSQ
Undershoot area
Time (ns)
Overshoot/Undershoot Definition
Data Sheet E1037E30 (Ver. 3.0)
11
EBE51AD8AJFA
DC Characteristics 1 (TC = 0°C to +85°C, VDD = 1.8V ± 0.1V, VSS = 0V)
Parameter
Symbol Grade
max.
Unit
Test condition
one bank; tCK = tCK (IDD), tRC = tRC (IDD),
tRAS = tRAS min.(IDD);
CKE is H, /CS is H between valid commands;
Address bus inputs are SWITCHING;
Data bus inputs are SWITCHING
Operating current
(ACT-PRE)
IDD0
1006
mA
one bank; IOUT = 0mA;
BL = 4, CL = CL(IDD), AL = 0;
tCK = tCK (IDD), tRC = tRC (IDD),
tRAS = tRAS min.(IDD); tRCD = tRCD (IDD);
CKE is H, /CS is H between valid commands;
Address bus inputs are SWITCHING;
Data pattern is same as IDD4W
Operating current
(ACT-READ-PRE)
IDD1
1156
mA
all banks idle;
tCK = tCK (IDD);
CKE is L;
Other control and address bus inputs are STABLE;
Data bus inputs are FLOATING
Precharge power-down
standby current
IDD2P
IDD2Q
IDD2N
623
668
713
mA
mA
mA
all banks idle;
tCK = tCK (IDD);
CKE is H, /CS is H;
Other control and address bus inputs are STABLE;
Data bus inputs are FLOATING
Precharge quiet standby
current
all banks idle;
tCK = tCK (IDD);CKE is H, /CS is H;
Other control and address bus inputs are
SWITCHING;
Idle standby current
Data bus inputs are SWITCHING
all banks open;
tCK = tCK (IDD);
CKE is L;
Fast PDN Exit
MRS(12) = 0
IDD3P-F
IDD3P-S
668
641
mA
mA
Active power-down
standby current
Other control and
address bus inputs are
STABLE;
Data bus inputs are
FLOATING
Slow PDN Exit
MRS(12) = 1
all banks open;
tCK = tCK (IDD), tRAS = tRAS max.(IDD),
tRP = tRP (IDD);
Active standby current
IDD3N
IDD4R
IDD4W
871
mA
mA
mA
CKE is H, /CS is H between valid commands;
Other control and address bus inputs are
SWITCHING;
Data bus inputs are SWITCHING
all banks open, continuous burst reads, IOUT = 0mA;
BL = 4, CL = CL(IDD), AL = 0;
tCK = tCK (IDD), tRAS = tRAS max.(IDD),
tRP = tRP (IDD);
CKE is H, /CS is H between valid commands;
Address bus inputs are SWITCHING;
Data pattern is same as IDD4W
Operating current
1606
1561
(Burst read operating)
all banks open, continuous burst writes;
BL = 4, CL = CL(IDD), AL = 0;
tCK = tCK (IDD), tRAS = tRAS max.(IDD),
tRP = tRP (IDD);
CKE is H, /CS is H between valid commands;
Address bus inputs are SWITCHING;
Data bus inputs are SWITCHING
Operating current
(Burst write operating)
Data Sheet E1037E30 (Ver. 3.0)
12
EBE51AD8AJFA
Parameter
Symbol Grade
IDD5
max.
1443
Unit
mA
Test condition
tCK = tCK (IDD);
Refresh command at every tRFC (IDD) interval;
CKE is H, /CS is H between valid commands;
Other control and address bus inputs are SWITCHING;
Data bus inputs are SWITCHING
Auto-refresh current
Self Refresh Mode;
CK and /CK at 0V;
Self-refresh current
IDD6
IDD7
113
mA
mA
CKE ≤ 0.2V;
Other control and address bus inputs are FLOATING;
Data bus inputs are FLOATING
all bank interleaving reads, IOUT = 0mA;
BL = 4, CL = CL(IDD), AL = tRCD (IDD) −1 × tCK (IDD);
tCK = tCK (IDD), tRC = tRC (IDD), tRRD = tRRD(IDD),
tRCD = 1 × tCK (IDD);
CKE is H, /CS is H between valid commands;
Address bus inputs are STABLE during DESELECTs;
Data pattern is same as IDD4W;
Operating current
(Bank interleaving)
2215
Notes: 1. IDD specifications are tested after the device is properly initialized.
2. Input slew rate is specified by AC Input Test Condition.
3. IDD parameters are specified with ODT disabled.
4. Data bus consists of DQ, DM, DQS, /DQS, RDQS and /RDQS. IDD values must be met with all
combinations of EMRS bits 10 and 11.
5. Definitions for IDD
L is defined as VIN ≤ VIL (AC) (max.)
H is defined as VIN ≥ VIH (AC) (min.)
STABLE is defined as inputs stable at an H or L level
FLOATING is defined as inputs at VREF = VDDQ/2
SWITCHING is defined as:
inputs changing between H and L every other clock cycle (once per two clocks) for address and control
signals, and inputs changing between H and L every other data transfer (once per clock) for DQ signals
not including masks or strobes.
6. Refer to AC Timing for IDD Test Conditions.
AC Timing for IDD Test Conditions
For purposes of IDD testing, the following parameters are to be utilized.
DDR2-667
Parameter
CL(IDD)
Unit
tCK
ns
5-5-5
5
tRCD(IDD)
tRC(IDD)
15
60
ns
tRRD(IDD)
tCK(IDD)
7.5
3
ns
ns
tRAS(min.)(IDD)
tRAS(max.)(IDD)
tRP(IDD)
45
ns
70000
15
ns
ns
tRFC(IDD)
105
ns
Data Sheet E1037E30 (Ver. 3.0)
13
EBE51AD8AJFA
DC Characteristics 2 (TC = 0°C to +85°C, VDD, VDDQ = 1.8V ± 0.1V)
(DDR2 SDRAM Component Specification)
Parameter
Symbol
ILI
Value
Unit
µA
Notes
Input leakage current
Output leakage current
2
5
VDD ≥ VIN ≥ VSS
VDDQ ≥ VOUT ≥ VSS
ILO
µA
Minimum required output pull-up under AC
test load
VOH
VOL
VTT + 0.603
V
V
5
5
Maximum required output pull-down under
AC test load
VTT − 0.603
Output timing measurement reference level VOTR
0.5 × VDDQ
+13.4
V
1
Output minimum sink DC current
Output minimum source DC current
IOL
mA
mA
3, 4, 5
2, 4, 5
IOH
−13.4
Notes: 1. The VDDQ of the device under test is referenced.
2. VDDQ = 1.7V; VOUT = 1.42V.
3. VDDQ = 1.7V; VOUT = 0.28V.
4. The DC value of VREF applied to the receiving device is expected to be set to VTT.
5. After OCD calibration to 18Ω at TC = 25°C, VDD = VDDQ = 1.8V.
DC Characteristics 3 (TC = 0°C to +85°C, VDD, VDDQ = 1.8V ± 0.1V)
(DDR2 SDRAM Component Specification)
Parameter
Symbol
min.
max.
Unit
V
Notes
1, 2
2
AC differential input voltage
AC differential cross point voltage
AC differential cross point voltage
VID (AC)
VIX (AC)
VOX (AC)
0.5
VDDQ + 0.6
0.5 × VDDQ − 0.175
0.5 × VDDQ − 0.125
0.5 × VDDQ + 0.175
0.5 × VDDQ + 0.125
V
V
3
Notes: 1. VID (AC) specifies the input differential voltage |VTR -VCP| required for switching, where VTR is the true
input signal (such as CK, DQS, RDQS) and VCP is the complementary input signal (such as /CK, /DQS,
/RDQS). The minimum value is equal to VIH (AC) − VIL (AC).
2. The typical value of VIX (AC) is expected to be about 0.5 × VDDQ of the transmitting device and VIX (AC)
is expected to track variations in VDDQ. VIX (AC) indicates the voltage at which differential input signals
must cross.
3. The typical value of VOX (AC) is expected to be about 0.5 × VDDQ of the transmitting device and VOX
(AC) is expected to track variations in VDDQ. VOX (AC) indicates the voltage at which differential output
signals must cross.
VDDQ
VTR
Crossing point
VID
VIX or VOX
VCP
VSSQ
Differential Signal Levels*1, 2
Data Sheet E1037E30 (Ver. 3.0)
14
EBE51AD8AJFA
ODT DC Electrical Characteristics (TC = 0°C to +85°C, VDD, VDDQ = 1.8V ± 0.1V)
(DDR2 SDRAM Component Specification)
Parameter
Symbol
Rtt1 (eff)
Rtt2 (eff)
Rtt3 (eff)
∆VM
min.
60
typ.
75
max.
90
Unit
Ω
Note
Rtt effective impedance value for EMRS (A6, A2) = 0, 1; 75 Ω
Rtt effective impedance value for EMRS (A6, A2) = 1, 0; 150 Ω
Rtt effective impedance value for EMRS (A6, A2) = 1, 1; 50 Ω
Deviation of VM with respect to VDDQ/2
1
1
1
1
120
40
150
50
180
60
Ω
Ω
−6
+6
%
Note: 1. Test condition for Rtt measurements.
Measurement Definition for Rtt (eff)
Apply VIH (AC) and VIL (AC) to test pin separately, then measure current I(VIH (AC)) and I(VIL (AC)) respectively.
VIH (AC), and VDDQ values defined in SSTL_18.
VIH(AC)−VIL(AC)
Rtt(eff ) =
I(VIH(AC))−I(VIL(AC))
Measurement Definition for ∆VM
Measure voltage (VM) at test pin (midpoint) with no load.
2×VM
∆VM =
−1 ×100
VDDQ
OCD Default Characteristics (TC = 0°C to +85°C, VDD, VDDQ = 1.8V ± 0.1V)
(DDR2 SDRAM Component Specification)
Parameter
min.
12.6
0
typ.
18
max.
23.4
4
Unit
Ω
Notes
1, 5
Output impedance
Pull-up and pull-down mismatch
Output slew rate
Ω
1, 2
1.5
5
V/ns
3, 4
Notes: 1. Impedance measurement condition for output source DC current: VDDQ = 1.7V; VOUT = 1420mV;
(VOUT−VDDQ)/IOH must be less than 23.4Ω for values of VOUT between VDDQ and VDDQ−280mV.
Impedance measurement condition for output sink DC current: VDDQ = 1.7V; VOUT = 280mV;
VOUT/IOL must be less than 23.4Ω for values of VOUT between 0V and 280mV.
2. Mismatch is absolute value between pull up and pull down, both are measured at same temperature and
voltage.
3. Slew rate measured from VIL (AC) to VIH (AC).
4. The absolute value of the slew rate as measured from DC to DC is equal to or greater than the slew rate
as measured from AC to AC. This is guaranteed by design and characterization.
5. DRAM I/O specifications for timing, voltage, and slew rate are no longer applicable if OCD is changed
from default settings.
Data Sheet E1037E30 (Ver. 3.0)
15
EBE51AD8AJFA
Pin Capacitance (TA = 25°C, VDD = 1.8V ± 0.1V)
Parameter
Symbol
CI1
Pins
min.
2.0
max.
3.5
Unit
pF
Notes
Address, /RAS, /CAS,
/WE, /CS, CKE, ODT
Input capacitance
Input capacitance
1
2
CI2
CK, /CK
2.0
3.0
pF
DQ, DQS, /DQS, UDQS,
/UDQS, LDQS, /LDQS,
RDQS, /RDQS, DM,
UDM, LDM, CB
Input/output pin capacitance CI/O
2.5
3.5
pF
3
Notes: 1. Register component specification.
2. PLL component specification.
3. DDR2 SDRAM component specification.
Data Sheet E1037E30 (Ver. 3.0)
16
EBE51AD8AJFA
AC Characteristics (TC = 0°C to +85°C, VDD, VDDQ = 1.8V ± 0.1V, VSS, VSSQ = 0V)
(DDR2 SDRAM Component Specification)
• New units tCK(avg) and nCK, are introduced in DDR2-800 and DDR2-667
tCK(avg): actual tCK(avg) of the input clock under operation.
nCK: one clock cycle of the input clock, counting the actual clock edges.
-6E
Speed bin
DDR2-667 (5-5-5)
Parameter
Symbol
tRCD
min.
15
max.
Unit
ns
Notes
Active to read or write command delay
Precharge command period
Active to active/auto-refresh command time
DQ output access time from CK, /CK
DQS output access time from CK, /CK
CK high-level width
tRP
15
ns
tRC
60
ns
tAC
−450
−400
0.48
0.48
+450
+400
0.52
0.52
ps
10
10
tDQSCK
tCH (avg)
tCL(avg)
ps
tCK (avg) 13
tCK (avg) 13
CK low-level width
Min.(tCL(abs),
tCH(abs))
CK half period
tHP
ps
ps
6, 13
Clock cycle time
(CL = 6)
tCK (avg)
3000
8000
13
(CL = 5)
tCK (avg)
tCK (avg)
tCK (avg)
tDH (base)
tDS (base)
tIPW
3000
3750
5000
175
8000
8000
8000
ps
13
13
13
5
(CL = 4)
ps
(CL = 3)
ps
DQ and DM input hold time
ps
DQ and DM input setup time
100
ps
4
Control and Address input pulse width for each input
DQ and DM input pulse width for each input
Data-out high-impedance time from CK,/CK
DQS, /DQS low-impedance time from CK,/CK
DQ low-impedance time from CK,/CK
DQS-DQ skew for DQS and associated DQ signals
DQ hold skew factor
0.6
tCK (avg)
tCK (avg)
ps
tDIPW
0.35
tHZ
tAC max.
tAC max.
tAC max.
240
10
10
10
tLZ (DQS)
tLZ (DQ)
tDQSQ
tQHS
tAC min.
ps
2 × tAC min.
ps
ps
340
ps
7
8
DQ/DQS output hold time from DQS
tQH
tHP – tQHS
−0.25
0.35
0.35
0.2
ps
DQS latching rising transitions to associated clock edges tDQSS
+0.25
tCK (avg)
tCK (avg)
tCK (avg)
tCK (avg)
tCK (avg)
nCK
DQS input high pulse width
DQS input low pulse width
DQS falling edge to CK setup time
DQS falling edge hold time from CK
Mode register set command cycle time
Write postamble
tDQSH
tDQSL
tDSS
tDSH
0.2
tMRD
2
tWPST
tWPRE
tIH (base)
tIS (base)
tRPRE
tRPST
tRAS
0.4
0.6
tCK (avg)
tCK (avg)
ps
Write preamble
0.35
275
Address and control input hold time
Address and control input setup time
Read preamble
5
4
200
ps
0.9
1.1
tCK (avg) 11
Read postamble
0.4
0.6
tCK (avg) 12
Active to precharge command
Active to auto-precharge delay
45
70000
ns
ns
tRAP
tRCD min.
Data Sheet E1037E30 (Ver. 3.0)
17
EBE51AD8AJFA
-6E
Speed bin
DDR2-667 (5-5-5)
Parameter
Symbol
tRRD
tCCD
tWR
min.
7.5
2
max.
Unit
ns
Notes
Active bank A to active bank B command period
/CAS to /CAS command delay
Write recovery time
nCK
ns
15
WR + RU
(tRP/tCK(avg))
Auto precharge write recovery + precharge time
tDAL
nCK
1, 9
14
Internal write to read command delay
tWTR
tRTP
7.5
ns
Internal read to precharge command delay
Exit self-refresh to a non-read command
Exit self-refresh to a read command
7.5
ns
tXSNR
tXSRD
tXP
tRFC + 10
ns
200
2
nCK
nCK
nCK
Exit precharge power down to any non-read command
Exit active power down to read command
tXARD
2
3
Exit active power down to read command
(slow exit/low power mode)
tXARDS
7 − AL
nCK
2, 3
CKE minimum pulse width (high and low pulse width)
Output impedance test driver delay
tCKE
tOIT
3
nCK
ns
0
12
12
MRS command to ODT update delay
tMOD
tRFC
0
ns
Auto-refresh to active/auto-refresh command time
105
ns
Average periodic refresh interval
(0°C ≤ TC ≤ +85°C)
tREFI
7.8
3.9
µs
µs
ns
(+85°C < TC ≤ +95°C)
tREFI
Minimum time clocks remains ON after CKE
asynchronously drops low
tIS + tCK(avg)
+ tIH
tDELAY
Notes: 1. For each of the terms above, if not already an integer, round to the next higher integer.
2. AL: Additive Latency.
3. MRS A12 bit defines which active power down exit timing to be applied.
4. The figures of Input Waveform Timing 1 and 2 are referenced from the input signal crossing at the
VIH(AC) level for a rising signal and VIL(AC) for a falling signal applied to the device under test.
5. The figures of Input Waveform Timing 1 and 2 are referenced from the input signal crossing at the
VIL(DC) level for a rising signal and VIH(DC) for a falling signal applied to the device under test.
CK
DQS
/CK
/DQS
tIS
tIH
tIS
tIH
tDS tDH
tDS tDH
VDDQ
VDDQ
VIH (AC)(min.)
VIH (DC)(min.)
VREF
VIH (AC)(min.)
VIH (DC)(min.)
VREF
VIL (DC)(max.)
VIL (AC)(max.)
VSS
VIL (DC)(max.)
VIL (AC)(max.)
VSS
Input Waveform Timing 1 (tDS, tDH)
Input Waveform Timing 2 (tIS, tIH)
Data Sheet E1037E30 (Ver. 3.0)
18
EBE51AD8AJFA
6. tHP is the minimum of the absolute half period of the actual input clock. tHP is an input parameter but not
an input specification parameter. It is used in conjunction with tQHS to derive the DRAM output timing
tQH.
The value to be used for tQH calculation is determined by the following equation;
tHP = min ( tCH(abs), tCL(abs) ),
where,
tCH(abs) is the minimum of the actual instantaneous clock high time;
tCL(abs) is the minimum of the actual instantaneous clock low time;
7. tQHS accounts for:
a.
the input is transferred to the output; and
b. The worst case push-out of DQS on one transition followed by the worst case pull-in of DQ on the
The pulse duration distortion of on-chip clock circuits, which represents how well the actual tHP at
next transition, both of which are independent of each other, due to data pin skew, output pattern effects,
and p-channel to n-channel variation of the output drivers.
8. tQH = tHP – tQHS, where:
tHP is the minimum of the absolute half period of the actual input clock; and tQHS is the specification
value under the max column.
{The less half-pulse width distortion present, the larger the tQH value is; and the larger the valid data eye
will be.}
Examples:
a. If the system provides tHP of 1315ps into a DDR2-667 SDRAM, the DRAM provides tQH of 975ps
(min.)
b. If the system provides tHP of 1420ps into a DDR2-667 SDRAM, the DRAM provides tQH of 1080ps
(min.)
9. RU stands for round up. WR refers to the tWR parameter stored in the MRS.
10. When the device is operated with input clock jitter, this parameter needs to be derated by the actual
tERR(6-10per) of the input clock. (output deratings are relative to the SDRAM input clock.)
For example, if the measured jitter into a DDR2-667 SDRAM has tERR(6-10per) min. = −272ps and
tERR(6-10per) max. = +293ps, then tDQSCK min.(derated) = tDQSCK min. − tERR(6-10per) max. =
−400ps − 293ps = −693ps and tDQSCK max.(derated) = tDQSCK max. − tERR(6-10per) min. = 400ps +
272ps = +672ps. Similarly, tLZ(DQ) for DDR2-667 derates to tLZ(DQ) min.(derated) = −900ps − 293ps =
−1193ps and tLZ(DQ) max.(derated)= 450ps + 272ps = +722ps.
11. When the device is operated with input clock jitter, this parameter needs to be derated by the actual
tJIT(per) of the input clock. (output deratings are relative to the SDRAM input clock.)
For example, if the measured jitter into a DDR2-667 SDRAM has tJIT(per) min. = −72ps and
tJIT(per) max. = +93ps, then tRPRE min.(derated) = tRPRE min. + tJIT(per) min. = 0.9 × tCK(avg) − 72ps
= +2178ps and tRPRE max.(derated) = tRPRE max. + tJIT(per) max. = 1.1 × tCK(avg) + 93ps = +2843ps.
12. When the device is operated with input clock jitter, this parameter needs to be derated by the actual
tJIT(duty) of the input clock. (output deratings are relative to the SDRAM input clock.)
For example, if the measured jitter into a DDR2-667 SDRAM has tJIT(duty) min. = −72ps and
tJIT(duty) max. = +93ps, then tRPST min.(derated) = tRPST min. + tJIT(duty) min. = 0.4 × tCK(avg) −
72ps = +928ps and tRPST max.(derated) = tRPST max. + tJIT(duty) max. = 0.6 × tCK(avg) + 93ps =
+1592ps.
13. Refer to the Clock Jitter table.
14. tWTR is at least two clocks (2 × tCK or 2 × nCK) independent of operation frequency.
Data Sheet E1037E30 (Ver. 3.0)
19
EBE51AD8AJFA
ODT AC Electrical Characteristics (DDR2 SDRAM Component Specification)
Parameter
Symbol
tAOND
tAON
min.
max.
Unit
tCK
ps
Notes
1, 3
ODT turn-on delay
2
2
ODT turn-on
tAC(min)
tAC(max) + 700
2tCK + tAC(max) + 1000
2.5
ODT turn-on (power-down mode)
ODT turn-off delay
tAONPD
tAOFD
tAOF
tAC(min) + 2000
ps
2.5
tCK
ps
5
ODT turn-off
tAC(min)
tAC(max) + 600
2, 4, 5
ODT turn-off (power-down mode)
ODT to power-down entry latency
ODT power-down exit latency
tAOFPD
tANPD
tAXPD
tAC(min) + 2000
2.5tCK + tAC(max) + 1000 ps
3
8
3
8
tCK
tCK
Notes: 1. ODT turn on time min is when the device leaves high impedance and ODT resistance begins to turn on.
ODT turn on time max is when the ODT resistance is fully on. Both are measured from tAOND.
2. ODT turn off time min is when the device starts to turn off ODT resistance.
ODT turn off time max is when the bus is in high impedance. Both are measured from tAOFD.
3. When the device is operated with input clock jitter, this parameter needs to be derated by the actual
tERR(6-10per) of the input clock. (output deratings are relative to the SDRAM input clock.)
4. When the device is operated with input clock jitter, this parameter needs to be derated by
{−tJIT(duty) max. − tERR(6-10per) max. } and { −tJIT(duty) min. − tERR(6-10per) min. } of the actual input
clock.(output deratings are relative to the SDRAM input clock.)
For example, if the measured jitter into a DDR2-667 SDRAM has tERR(6-10per) min. = −272ps,
tERR(6-10per) max. = +293ps, tJIT(duty) min. = −106ps and tJIT(duty) max. = +94ps, then
tAOF min.(derated) = tAOF min. + { −tJIT(duty) max. − tERR(6-10per) max. } = −450ps + { −94ps − 293ps}
= −837ps and tAOF max.(derated) = tAOF max. + { −tJIT(duty) min. − tERR(6-10per) min. } = 1050ps +
{ 106ps + 272ps} = +1428ps.
5. For tAOFD of DDR2-667, the 1/2 clock of nCK in the 2.5 × nCK assumes a tCH(avg), average input clock
high pulse width of 0.5 relative to tCK(avg). tAOF min. and tAOF max. should each be derated by the
same amount as the actual amount of tCH(avg) offset present at the DRAM input with respect to 0.5. For
example, if an input clock has a worst case tCH(avg) of 0.48, the tAOF min. should be derated by
subtracting 0.02 × tCK(avg) from it, whereas if an input clock has a worst case tCH(avg) of 0.52,
the tAOF max. should be derated by adding 0.02 × tCK(avg) to it. Therefore, we have;
tAOF min.(derated) = tAC min. − [0.5 − Min.(0.5, tCH(avg) min.)] × tCK(avg)
tAOF max.(derated) = tAC max. + 0.6 + [Max.(0.5, tCH(avg) max.) − 0.5] × tCK(avg)
or
tAOF min.(derated) = Min.(tAC min., tAC min. − [0.5 − tCH(avg) min.] × tCK(avg))
tAOF max.(derated) = 0.6 + Max.(tAC max., tAC max. + [tCH(avg) max. − 0.5] × tCK(avg))
where tCH(avg) min. and tCH(avg) max. are the minimum and maximum of tCH(avg) actually measured
at the DRAM input balls.
Data Sheet E1037E30 (Ver. 3.0)
20
EBE51AD8AJFA
AC Input Test Conditions (DDR2 SDRAM Component Specification)
Parameter
Symbol
Value
0.5 × VDDQ
1.0
Unit
V
Notes
1
Input reference voltage
VREF
Input signal maximum peak to peak swing
Input signal minimum slew rate
VSWING(max.)
SLEW
V
1
1.0
V/ns
2, 3
Notes: 1. Input waveform timing is referenced to the input signal crossing through the VIH/IL (AC) level applied to
the device under test.
2. The input signal minimum slew rate is to be maintained over the range from VREF to VIH(AC) (min.) for
rising edges and the range from VREF to VIL(AC) (max.) for falling edges as shown in the below figure.
3. AC timings are referenced with input waveforms switching from VIL(AC) to VIH(AC) on the positive
transitions and VIH(AC) to VIL(AC) on the negative transitions.
VDDQ
VIH (AC)(min.)
VIH (DC)(min.)
VSWING(max.)
VREF
VIL (DC)(max.)
VIL (AC)(max.)
VSS
∆TF
VREF
∆TR
−
VIL (AC)(max.)
VIH (AC) min.
−
VREF
Falling slew =
Rising slew =
∆TF
∆TR
AC Input Test Signal Wave forms
Measurement point
DQ
VTT
RT =25 Ω
Output Load
Data Sheet E1037E30 (Ver. 3.0)
21
EBE51AD8AJFA
Clock Jitter [DDR2-667]
-6E
667
Frequency (Mbps)
Parameter
Symbol
min.
max.
8000
125
Unit
ps
Notes
Average clock period
Clock period jitter
tCK (avg)
tJIT (per)
3000
−125
1
5
ps
Clock period jitter during
DLL locking period
tJIT
(per, lck)
−100
100
250
200
ps
ps
ps
5
6
6
Cycle to cycle period jitter
tJIT (cc)
Cycle to cycle clock period jitter during
DLL locking period
tJIT (cc, lck)
Cumulative error across 2 cycles
Cumulative error across 3 cycles
Cumulative error across 4 cycles
Cumulative error across 5 cycles
tERR (2per)
tERR (3per)
tERR (4per)
tERR (5per)
−175
−225
−250
−250
175
225
250
250
ps
ps
ps
ps
7
7
7
7
Cumulative error across
n=6,7,8,9,10 cycles
tERR
(6-10per)
−350
−450
350
450
ps
ps
7
7
Cumulative error across
n=11, 12,…49,50 cycles
tERR
(11-50per)
Average high pulse width
Average low pulse width
Duty cycle jitter
tCH (avg)
tCL (avg)
tJIT (duty)
0.48
0.48
−125
0.52
0.52
125
tCK (avg)
tCK (avg)
ps
2
3
4
Notes: 1. tCK (avg) is calculated as the average clock period across any consecutive 200cycle window.
N
tCK(avg) =
tCKj
N
∑
j =1
N = 200
2. tCH (avg) is defined as the average high pulse width, as calculated across any consecutive 200 high
pulses.
N
tCH(avg) =
tCHj (N ×tCK(avg))
∑
j =1
N = 200
3. tCL (avg) is defined as the average low pulse width, as calculated across any consecutive 200 low pulses.
N
tCL(avg) =
tCLj (N × tCK(avg))
∑
j =1
N = 200
4. tJIT (duty) is defined as the cumulative set of tCH jitter and tCL jitter. tCH jitter is the largest deviation of
any single tCH from tCH (avg). tCL jitter is the largest deviation of any single tCL from tCL (avg).
tJIT (duty) is not subject to production test.
tJIT (duty) = Min./Max. of {tJIT (CH), tJIT (CL)}, where:
tJIT (CH) = {tCHj- tCH (avg) where j = 1 to 200}
tJIT (CL) = {tCLj − tCL (avg) where j = 1 to 200}
5. tJIT (per) is defined as the largest deviation of any single tCK from tCK (avg).
tJIT (per) = Min./Max. of { tCKj − tCK (avg) where j = 1 to 200}
tJIT (per) defines the single period jitter when the DLL is already locked. tJIT (per, lck) uses the same
definition for single period jitter, during the DLL locking period only. tJIT (per) and tJIT (per, lck) are not
subject to production test.
Data Sheet E1037E30 (Ver. 3.0)
22
EBE51AD8AJFA
6. tJIT (cc) is defined as the absolute difference in clock period between two consecutive clock cycles:
tJIT (cc) = Max. of |tCKj+1 − tCKj|
tJIT (cc) is defines the cycle to cycle jitter when the DLL is already locked. tJIT (cc, lck) uses the same
definition for cycle to cycle jitter, during the DLL locking period only. tJIT (cc) and tJIT (cc, lck) are not
subject to production test.
7. tERR (nper) is defined as the cumulative error across multiple consecutive cycles from tCK (avg).
tERR (nper) is not subject to production test.
n
tERR(nper) =
tCKj − n×tCK(avg))
∑
j =1
2 ≤ n ≤ 50 for tERR (nper)
8. These parameters are specified per their average values, however it is understood that the following
relationship between the average timing and the absolute instantaneous timing hold at all times.
(minimum and maximum of spec values are to be used for calculations in the table below.)
Parameter
Symbol
min.
max.
Unit
Absolute clock period
tCK (abs) tCK (avg) min. + tJIT (per) min. tCK (avg) max. + tJIT (per) max. ps
Absolute clock high pulse
width
tCH (avg) min. × tCK (avg) min. + tCH (avg) max. × tCK (avg) max.
tCH (abs)
tCL (abs)
ps
ps
tJIT (duty) min.
tCL (avg) min. × tCK (avg) min. + tCL (avg) max. × tCK (avg) max.
tJIT (duty) min. + tJIT (duty) max.
+ tJIT (duty) max.
Absolute clock low pulse
width
Example: For DDR2-667, tCH(abs) min. = ( 0.48 × 3000 ps ) - 125ps = 1315ps
Data Sheet E1037E30 (Ver. 3.0)
23
EBE51AD8AJFA
Pin Functions
CK, /CK (input pin)
The CK and the /CK are the master clock inputs. All inputs except DMs, DQSs and DQs are referred to the cross
point of the CK rising edge and the VREF level. When a read operation, DQSs and DQs are referred to the cross
point of the CK and the /CK. When a write operation, DQs are referred to the cross point of the DQS and the VREF
level. DQSs for write operation are referred to the cross point of the CK and the /CK.
/CS (input pin)
When /CS is low, commands and data can be input. When /CS is high, all inputs are ignored. However, internal
operations (bank active, burst operations, etc.) are held.
/RAS, /CAS, and /WE (input pins)
These pins define operating commands (read, write, etc.) depending on the combinations of their voltage levels.
See “Command operation”.
A0 to A13 (input pins)
Row address (AX0 to AX13) is determined by the A0 to the A13 level at the cross point of the CK rising edge and the
VREF level in a bank active command cycle. Column address (AY0 to AY9) is loaded via the A0 to the A9 at the
cross point of the CK rising edge and the VREF level in a read or a write command cycle. This column address
becomes the starting address of a burst operation.
A10 (AP) (input pin)
A10 defines the precharge mode when a precharge command, a read command or a write command is issued. If
A10 = high when a precharge command is issued, all banks are precharged. If A10 = low when a precharge
command is issued, only the bank that is selected by BA1, BA0 is precharged. If A10 = high when read or write
command, auto-precharge function is enabled. While A10 = low, auto-precharge function is disabled.
BA0, BA1 (input pin)
BA0, BA1 are bank select signals (BA). The memory array is divided into bank 0, bank 1, bank 2 and bank 3. (See
Bank Select Signal Table)
[Bank Select Signal Table]
BA0
L
BA1
L
Bank 0
Bank 1
H
L
Bank 2
L
H
Bank 3
H
H
Remark: H: VIH. L: VIL.
CKE (input pin)
CKE controls power down and self-refresh. The power down and the self-refresh commands are entered when the
CKE is driven low and exited when it resumes to high.
The CKE level must be kept for 1 CK cycle at least, that is, if CKE changes at the cross point of the CK rising edge
and the VREF level with proper setup time tIS, at the next CK rising edge CKE level must be kept with proper hold
time tIH.
DQ, CB (input and output pins)
Data are input to and output from these pins.
DQS (input and output pin)
DQS and /DQS provide the read data strobes (as output) and the write data strobes (as input).
Data Sheet E1037E30 (Ver. 3.0)
24
EBE51AD8AJFA
DM (input pins)
DM is the reference signal of the data input mask function. DMs are sampled at the cross point of DQS and /DQS.
DM function will be disabled when RDQS (DQS9 toDQS17 and /DQS9 to /DQS17) function is enabled by EMRS.
VDD (power supply pins)
1.8V is applied. (VDD is for the internal circuit.)
VDDSPD (power supply pin)
1.8V is applied (For serial EEPROM).
VSS (power supply pin)
Ground is connected.
/RESET(input pin)
LVCMOS reset input. When /RESET is Low, all registers are reset.
Par_IN (Parity input pin)
Parity bit for the address and control bus.
/Err_Out (Error output pin)
Parity error found on the address and control bus.
Detailed Operation Part and Timing Waveforms
Refer to the EDE5104AJSE, EDE5108AJSE, EDE5116AJSE datasheet (E1043E). DIMM /CAS latency =
component CL + 1 for registered type.
Data Sheet E1037E30 (Ver. 3.0)
25
EBE51AD8AJFA
Physical Outline
Unit: mm
4.00 max
0.5 min
(DATUM -A-)
Component area
(Front)
1
120
B
A
1.27 ± 0.10
63.00
55.00
133.35
121
240
Component area
(Back)
FULL R
3.00
Detail A
Detail B
1.00
(DATUM -A-)
FULL R
4.00
2.50
5.00
1.50 ± 0.10
0.80 ± 0.05
ECA-TS2-0093-01
Data Sheet E1037E30 (Ver. 3.0)
26
EBE51AD8AJFA
CAUTION FOR HANDLING MEMORY MODULES
When handling or inserting memory modules, be sure not to touch any components on the modules, such as
the memory ICs, chip capacitors and chip resistors. It is necessary to avoid undue mechanical stress on
these components to prevent damaging them.
In particular, do not push module cover or drop the modules in order to protect from mechanical defects,
which would be electrical defects.
When re-packing memory modules, be sure the modules are not touching each other.
Modules in contact with other modules may cause excessive mechanical stress, which may damage the
modules.
MDE0202
NOTES FOR CMOS DEVICES
PRECAUTION AGAINST ESD FOR MOS DEVICES
1
Exposing the MOS devices to a strong electric field can cause destruction of the gate
oxide and ultimately degrade the MOS devices operation. Steps must be taken to stop
generation of static electricity as much as possible, and quickly dissipate it, when once
it has occurred. Environmental control must be adequate. When it is dry, humidifier
should be used. It is recommended to avoid using insulators that easily build static
electricity. MOS devices must be stored and transported in an anti-static container,
static shielding bag or conductive material. All test and measurement tools including
work bench and floor should be grounded. The operator should be grounded using
wrist strap. MOS devices must not be touched with bare hands. Similar precautions
need to be taken for PW boards with semiconductor MOS devices on it.
2
HANDLING OF UNUSED INPUT PINS FOR CMOS DEVICES
No connection for CMOS devices input pins can be a cause of malfunction. If no
connection is provided to the input pins, it is possible that an internal input level may be
generated due to noise, etc., hence causing malfunction. CMOS devices behave
differently than Bipolar or NMOS devices. Input levels of CMOS devices must be fixed
high or low by using a pull-up or pull-down circuitry. Each unused pin should be connected
to VDD or GND with a resistor, if it is considered to have a possibility of being an output
pin. The unused pins must be handled in accordance with the related specifications.
3
STATUS BEFORE INITIALIZATION OF MOS DEVICES
Power-on does not necessarily define initial status of MOS devices. Production process
of MOS does not define the initial operation status of the device. Immediately after the
power source is turned ON, the MOS devices with reset function have not yet been
initialized. Hence, power-on does not guarantee output pin levels, I/O settings or
contents of registers. MOS devices are not initialized until the reset signal is received.
Reset operation must be executed immediately after power-on for MOS devices having
reset function.
CME0107
Data Sheet E1037E30 (Ver. 3.0)
27
EBE51AD8AJFA
The information in this document is subject to change without notice. Before using this document, confirm that this is the latest version.
No part of this document may be copied or reproduced in any form or by any means without the prior
written consent of Elpida Memory, Inc.
Elpida Memory, Inc. does not assume any liability for infringement of any intellectual property rights
(including but not limited to patents, copyrights, and circuit layout licenses) of Elpida Memory, Inc. or
third parties by or arising from the use of the products or information listed in this document. No license,
express, implied or otherwise, is granted under any patents, copyrights or other intellectual property
rights of Elpida Memory, Inc. or others.
Descriptions of circuits, software and other related information in this document are provided for
illustrative purposes in semiconductor product operation and application examples. The incorporation of
these circuits, software and information in the design of the customer's equipment shall be done under
the full responsibility of the customer. Elpida Memory, Inc. assumes no responsibility for any losses
incurred by customers or third parties arising from the use of these circuits, software and information.
[Product applications]
Be aware that this product is for use in typical electronic equipment for general-purpose applications.
Elpida Memory, Inc. makes every attempt to ensure that its products are of high quality and reliability.
However, users are instructed to contact Elpida Memory's sales office before using the product in
aerospace, aeronautics, nuclear power, combustion control, transportation, traffic, safety equipment,
medical equipment for life support, or other such application in which especially high quality and
reliability is demanded or where its failure or malfunction may directly threaten human life or cause risk
of bodily injury.
[Product usage]
Design your application so that the product is used within the ranges and conditions guaranteed by
Elpida Memory, Inc., including the maximum ratings, operating supply voltage range, heat radiation
characteristics, installation conditions and other related characteristics. Elpida Memory, Inc. bears no
responsibility for failure or damage when the product is used beyond the guaranteed ranges and
conditions. Even within the guaranteed ranges and conditions, consider normally foreseeable failure
rates or failure modes in semiconductor devices and employ systemic measures such as fail-safes, so
that the equipment incorporating Elpida Memory, Inc. products does not cause bodily injury, fire or other
consequential damage due to the operation of the Elpida Memory, Inc. product.
[Usage environment]
Usage in environments with special characteristics as listed below was not considered in the design.
Accordingly, our company assumes no responsibility for loss of a customer or a third party when used in
environments with the special characteristics listed below.
Example:
1) Usage in liquids, including water, oils, chemicals and organic solvents.
2) Usage in exposure to direct sunlight or the outdoors, or in dusty places.
3) Usage involving exposure to significant amounts of corrosive gas, including sea air, CL2, H2S, NH3,
SO2, and NO .
x
4) Usage in environments with static electricity, or strong electromagnetic waves or radiation.
5) Usage in places where dew forms.
6) Usage in environments with mechanical vibration, impact, or stress.
7) Usage near heating elements, igniters, or flammable items.
If you export the products or technology described in this document that are controlled by the Foreign
Exchange and Foreign Trade Law of Japan, you must follow the necessary procedures in accordance
with the relevant laws and regulations of Japan. Also, if you export products/technology controlled by
U.S. export control regulations, or another country's export control laws or regulations, you must follow
the necessary procedures in accordance with such laws or regulations.
If these products/technology are sold, leased, or transferred to a third party, or a third party is granted
license to use these products, that third party must be made aware that they are responsible for
compliance with the relevant laws and regulations.
M01E0706
Data Sheet E1037E30 (Ver. 3.0)
28
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