CY7C109-20VI [CYPRESS]

128K x 8 Static RAM; 128K ×8静态RAM
CY7C109-20VI
型号: CY7C109-20VI
厂家: CYPRESS    CYPRESS
描述:

128K x 8 Static RAM
128K ×8静态RAM

文件: 总12页 (文件大小:222K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
009  
CY7C109  
CY7C1009  
128K x 8 Static RAM  
active HIGH chip enable (CE2), an active LOW output enable  
(OE), and three-state drivers. Writing to the device is accom-  
plished by taking chip enable one (CE1) and write enable (WE)  
inputs LOW and chip enable two (CE2) input HIGH. Data on  
the eight I/O pins (I/O0 through I/O7) is then written into the  
location specified on the address pins (A0 through A16).  
Features  
• High speed  
— tAA = 10 ns  
• Low active power  
— 1017 mW (max., 12 ns)  
Reading from the device is accomplished by taking chip en-  
able one (CE1) and output enable (OE) LOW while forcing  
write enable (WE) and chip enable two (CE2) HIGH. Under  
these conditions, the contents of the memory location speci-  
fied by the address pins will appear on the I/O pins.  
• Low CMOS standby power  
— 55 mW (max.), 4 mW (Low power version)  
• 2.0V Data Retention (Low power version)  
• Automatic power-down when deselected  
• TTL-compatible inputs and outputs  
• Easy memory expansion with CE1, CE2, and OEoptions  
The eight input/output pins (I/O0 through I/O7) are placed in a  
high-impedance state when the device is deselected (CE1  
HIGH or CE2 LOW), the outputs are disabled (OE HIGH), or  
during a write operation (CE1 LOW, CE2 HIGH, and WE LOW).  
Functional Description  
The CY7C109 is available in standard 400-mil-wide SOJ and  
32-pin TSOP type I packages. The CY7C1009 is available in  
a 300-mil-wide SOJ package. The CY7C1009 and CY7C109  
are functionally equivalent in all other respects.  
The CY7C109 / CY7C1009 is a high-performance CMOS stat-  
ic RAM organized as 131,072 words by 8 bits. Easy memory  
expansion is provided by an active LOW chip enable (CE1), an  
Logic Block Diagram  
Pin Configurations  
SOJ  
Top View  
V
NC  
32  
31  
30  
1
CC  
A
16  
A
15  
2
3
A
14  
CE  
2
A
4
12  
29  
28  
WE  
5
A
A
A
A
13  
A
8
A
7
27  
26  
6
6
5
7
9
25  
24  
23  
22  
21  
A
A
3
8
9
10  
11  
12  
13  
A
4
11  
OE  
I/O  
A
A
10  
0
2
A
1
CE  
I/O  
I/O  
INPUT BUFFER  
1
7
6
A
0
I/O  
I/O  
I/O  
I/O  
I/O  
0
1
2
1
20  
19  
A
0
A
1
I/O  
5
14  
15  
16  
I/O  
I/O  
18  
17  
4
2
A
2
GND  
3
1092  
A
3
4
A
A11  
A9  
A8  
1
2
32  
31  
OE  
A10  
CE  
I/O7  
I/O6  
I/O5  
I/O4  
I/O3  
GND  
I/O2  
I/O1  
I/O0  
A0  
A1  
A2  
I/O  
I/O  
I/O  
3
4
5
512 x 256 x 8  
ARRAY  
A
5
6
3
4
5
6
7
8
30  
29  
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
A
A13  
A
7
8
WE  
CE2  
A15  
VCC  
NC  
A16  
A14  
A12  
A7  
A6  
A5  
A4  
A
TSOP I  
Top View  
9
(not to scale)  
I/O  
10  
11  
12  
13  
14  
15  
16  
6
7
POWER  
DOWN  
COLUMN  
DECODER  
CE  
1
2
CE  
I/O  
WE  
1091  
A3  
OE  
1093  
Selection Guide  
7C109-10  
7C109-12  
7C109-15  
7C109-20  
7C109-25  
7C109-35  
7C1009-10 7C1009-12 7C1009-15 7C1009-20 7C1009-25 7C1009-35  
Maximum Access Time (ns)  
Maximum Operating Current (mA)  
Maximum CMOS Standby Current (mA)  
Maximum CMOS Standby Current (mA)  
Low Power Version  
10  
195  
10  
2
12  
185  
10  
2
15  
155  
10  
2
20  
140  
10  
25  
135  
10  
35  
125  
10  
Shaded areas contain preliminary information.  
Cypress Semiconductor Corporation  
3901 North First Street  
San Jose  
CA 95134  
408-943-2600  
Document #: 38-05032 Rev. **  
Revised August 24, 2001  
CY7C109  
CY7C1009  
Static Discharge Voltage ........................................... >2001V  
(per MIL-STD-883, Method 3015)  
Maximum Ratings  
(Above which the useful life may be impaired. For user guide-  
lines, not tested.)  
Latch-Up Current..................................................... >200 mA  
Storage Temperature .................................65°C to +150°C  
Operating Range  
Ambient Temperature with  
Power Applied.............................................55°C to +125°C  
Supply Voltage on VCC to Relative GND[1] .... 0.5V to +7.0V  
Ambient  
Range  
Commercial  
Industrial  
Temperature[2]  
0°C to +70°C  
VCC  
5V ± 10%  
5V ± 10%  
DC Voltage Applied to Outputs  
in High Z State[1]....................................0.5V to VCC + 0.5V  
40°C to +85°C  
DC Input Voltage[1] ................................0.5V to VCC + 0.5V  
Current into Outputs (LOW).........................................20 mA  
Electrical Characteristics Over the Operating Range[3]  
7C109-10  
7C1009-10  
7C109-12  
7C1009-12  
7C109-15  
7C100915  
Parameter  
Description  
Test Conditions  
Min.  
Max.  
Min.  
Max.  
Min.  
Max. Unit  
VOH  
Output HIGH Voltage VCC = Min.,  
2.4  
2.4  
2.4  
V
V
V
IOH = 4.0 mA  
VOL  
VIH  
Output LOW Voltage VCC = Min.,  
IOL = 8.0 mA  
0.4  
0.4  
0.4  
Input HIGH Voltage  
2.2  
VCC  
2.2  
VCC  
2.2  
VCC  
+ 0.3  
+ 0.3  
+ 0.3  
VIL  
IIX  
Input LOW Voltage[1]  
0.3  
1  
0.8  
+1  
+5  
0.3  
1  
0.8  
+1  
+5  
0.3  
1  
0.8  
+1  
+5  
V
Input Load Current  
GND < VI < VCC  
µA  
µA  
IOZ  
Output Leakage  
Current  
GND < VI < VCC  
,
5  
5  
5  
Output Disabled  
IOS  
ICC  
Output Short  
VCC = Max.,  
VOUT = GND  
300  
300  
300 mA  
Circuit Current[3]  
VCC Operating  
Supply Current  
VCC = Max.,  
IOUT = 0 mA,  
f = fMAX = 1/tRC  
195  
185  
155  
40  
mA  
mA  
ISB1  
Automatic CE  
Max. VCC, CE1 > VIH  
45  
45  
Power-Down Current or CE2 < VIL,  
TTL Inputs  
VIN > VIH or  
VIN < VIL, f = fMAX  
ISB2  
Automatic CE  
Power-Down Current CE1 > VCC 0.3V,  
CMOS Inputs  
Max. VCC  
,
10  
2
10  
2
10  
2
mA  
L
or CE2 < 0.3V,  
VIN > VCC 0.3V,  
or VIN < 0.3V, f=0  
Shaded areas contain preliminary information.  
Document #: 38-05032 Rev. **  
Page 2 of 12  
CY7C109  
CY7C1009  
Electrical Characteristics Over the Operating Range (continued)  
7C109-20  
7C109-25  
7C1009-25  
7C109-35  
7C1009-35  
7C1009-20  
Parameter  
Description  
Test Conditions  
VCC = Min.,  
Min.  
Max.  
Min.  
Max.  
Min.  
Max.  
Unit  
VOH  
Output HIGH Voltage  
2.4  
2.4  
2.4  
V
IOH = 4.0 mA  
VOL  
VIH  
Output LOW Voltage  
Input HIGH Voltage  
VCC = Min.,  
IOL = 8.0 mA  
0.4  
0.4  
0.4  
V
V
2.2  
VCC  
+ 0.3  
2.2  
VCC  
+ 0.3  
2.2  
VCC  
+ 0.3  
VIL  
IIX  
Input LOW Voltage[1]  
Input Load Current  
0.3  
1  
0.8  
+1  
+5  
0.3  
1  
0.8  
+1  
+5  
0.3  
1  
0.8  
+1  
+5  
V
GND < VI < VCC  
µA  
µA  
IOZ  
Output Leakage  
Current  
GND < VI < VCC  
,
5  
5  
5  
Output Disabled  
IOS  
ICC  
Output Short  
VCC = Max.,  
VOUT = GND  
300  
300  
300  
mA  
mA  
Circuit Current[3]  
VCC Operating  
Supply Current  
VCC = Max.,  
IOUT = 0 mA,  
f = fMAX = 1/tRC  
140  
135  
125  
ISB1  
Automatic CE  
Power-Down Current  
TTL Inputs  
Max. VCC, CE1 > VIH  
or CE2 < VIL,  
VIN > VIH or  
30  
10  
30  
10  
25  
10  
mA  
mA  
VIN < VIL, f = fMAX  
ISB2  
Automatic CE  
Max. VCC,  
Power-Down Current  
CMOS Inputs  
CE1 > VCC 0.3V,  
or CE2 < 0.3V,  
VIN > VCC 0.3V,  
or VIN < 0.3V, f=0  
Capacitance[4]  
Parameter  
Description  
Test Conditions  
TA = 25°C, f = 1 MHz,  
VCC = 5.0V  
Max.  
Unit  
CIN  
Input Capacitance  
Output Capacitance  
9
8
pF  
pF  
COUT  
Notes:  
1. VIL (min.) = 2.0V for pulse durations of less than 20 ns.  
2. A is the instant oncase temperature.  
T
3. Not more than one output should be shorted at one time. Duration of the short circuit should not exceed 30 seconds.  
4. Tested initially and after any design or process changes that may affect these parameters.  
AC Test Loads and Waveforms  
R1 480Ω  
ALL INPUT PULSES  
90%  
R1 480Ω  
5V  
5V  
3.0V  
GND  
90%  
10%  
OUTPUT  
OUTPUT  
10%  
R2  
255Ω  
R2  
255Ω  
30 pF  
5 pF  
3ns  
3 ns  
INCLUDING  
JIG AND  
SCOPE  
INCLUDING  
JIG AND  
SCOPE  
(b)  
1093  
(a)  
1094  
THÉ  
Equivalent to:  
VENIN EQUIVALENT  
167Ω  
1.73V  
OUTPUT  
Document #: 38-05032 Rev. **  
Page 3 of 12  
CY7C109  
CY7C1009  
Switching Characteristics[3, 5] Over the Operating Range  
7C109-10  
7C1009-10  
7C109-12  
7C1009-12  
7C109-15  
7C1009-15  
Parameter  
Description  
Min.  
Max.  
Min.  
Max.  
Min. Max.  
Unit  
READ CYCLE  
tRC  
Read Cycle Time  
Address to Data Valid  
10  
3
12  
3
15  
3
ns  
ns  
ns  
ns  
tAA  
10  
12  
15  
tOHA  
tACE  
Data Hold from Address Change  
CE1 LOW to Data Valid, CE2 HIGH to Data  
Valid  
10  
5
12  
6
15  
7
tDOE  
tLZOE  
tHZOE  
tLZCE  
tHZCE  
tPU  
OE LOW to Data Valid  
ns  
ns  
ns  
ns  
ns  
ns  
OE LOW to Low Z  
OE HIGH to High Z[6, 7]  
CE1 LOW to Low Z, CE2 HIGH to Low Z[7]  
CE1 HIGH to High Z, CE2 LOW to High Z[6, 7]  
0
3
0
0
3
0
0
3
0
5
5
6
6
7
7
CE1 LOW to Power-Up, CE2 HIGH to  
Power-Up  
tPD  
CE1 HIGH to Power-Down, CE2 LOW to  
Power-Down  
10  
12  
15  
ns  
WRITE CYCLE[8,9]  
tWC  
tSCE  
tAW  
Write Cycle Time  
10  
8
12  
10  
10  
0
15  
12  
12  
0
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
CE1 LOW to Write End, CE2 HIGH to Write End  
Address Set-Up to Write End  
Address Hold from Write End  
Address Set-Up to Write Start  
WE Pulse Width  
8
tHA  
0
tSA  
0
0
0
tPWE  
tSD  
8
10  
7
12  
8
Data Set-Up to Write End  
Data Hold from Write End  
WE HIGH to Low Z[7]  
6
tHD  
0
0
0
tLZWE  
tHZWE  
3
3
3
WE LOW to High Z[6, 7]  
5
6
7
Shaded areas contain preliminary information.  
Notes:  
5. Test conditions assume signal transition time of 3 ns or less, timing reference levels of 1.5V, input pulse levels of 0 to 3.0V, and output loading of the specified  
IOL/IOH and 30-pF load capacitance.  
6.  
tHZOE, tHZCE, and tHZWE are specified with a load capacitance of 5 pF as in part (b) of AC Test Loads. Transition is measured ±500 mV from steady-state voltage.  
7. At any given temperature and voltage condition, tHZCE is less than tLZCE, tHZOE is less than tLZOE, and tHZWE is less than tLZWE for any given device.  
8. The internal write time of the memory is defined by the overlap of CE1 LOW, CE2 HIGH, and WE LOW. CE1 and WE must be LOW and CE2 HIGH to initiate a write,  
and the transition of any of these signals can terminate the write. The input data set-up and hold timing should be referenced to the leading edge of the signal that terminates  
the write.  
9. The minimum write cycle time for Write Cycle no. 3 (WE controlled, OE LOW) is the sum of tHZWE and TSD  
.
Document #: 38-05032 Rev. **  
Page 4 of 12  
CY7C109  
CY7C1009  
Switching Characteristics[3, 5] Over the Operating Range  
7C109-20  
7C1009-20  
7C109-25  
7C1009-25  
7C109-35  
7C1009-35  
Parameter  
Description  
Min.  
Max.  
Min.  
Max.  
Min. Min.  
Unit  
READ CYCLE  
tRC  
Read Cycle Time  
Address to Data Valid  
20  
3
25  
5
35  
5
ns  
ns  
ns  
ns  
tAA  
20  
25  
35  
tOHA  
tACE  
Data Hold from Address Change  
CE1 LOW to Data Valid, CE2 HIGH to Data  
Valid  
20  
8
25  
10  
35  
15  
tDOE  
tLZOE  
tHZOE  
tLZCE  
tHZCE  
tPU  
OE LOW to Data Valid  
ns  
ns  
ns  
ns  
ns  
ns  
OE LOW to Low Z  
OE HIGH to High Z[6, 7]  
CE1 LOW to Low Z, CE2 HIGH to Low Z[7]  
CE1 HIGH to High Z, CE2 LOW to High Z[6, 7]  
0
3
0
0
5
0
0
5
0
8
8
10  
10  
15  
15  
CE1 LOW to Power-Up, CE2 HIGH to  
Power-Up  
tPD  
CE1 HIGH to Power-Down, CE2 LOW to  
Power-Down  
20  
25  
35  
ns  
WRITE CYCLE[8]  
tWC  
Write Cycle Time  
20  
15  
15  
0
25  
20  
20  
0
35  
25  
25  
0
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
tSCE  
tAW  
CE1 LOW to Write End, CE2 HIGH to Write End  
Address Set-Up to Write End  
Address Hold from Write End  
Address Set-Up to Write Start  
WE Pulse Width  
tHA  
tSA  
0
0
0
tPWE  
tSD  
12  
10  
0
15  
15  
0
20  
20  
0
Data Set-Up to Write End  
Data Hold from Write End  
WE HIGH to Low Z[7]  
tHD  
tLZWE  
tHZWE  
3
5
5
WE LOW to High Z[6, 7]  
8
10  
15  
Data Retention Characteristics Over the Operating Range (L Version Only)  
Parameter  
VDR  
Description  
VCC for Data Retention  
Conditions  
Min.  
Max  
Unit  
V
No input may exceed VCC + 0.5V  
VCC = VDR = 2.0V,  
CE1 > VCC 0.3V or CE2 < 0.3V,  
VIN > VCC 0.3V or VIN < 0.3V  
2.0  
ICCDR  
tCDR  
Data Retention Current  
50  
µA  
ns  
Chip Deselect to Data Retention Time  
Operation Recovery Time  
0
tR  
tRC  
ns  
Shaded areas contain preliminary information.  
Document #: 38-05032 Rev. **  
Page 5 of 12  
CY7C109  
CY7C1009  
Data Retention Waveform  
DATA RETENTION MODE  
> 2V  
V
CC  
4.5V  
4.5V  
V
DR  
t
t
R
CDR  
CE  
109-5  
Switching Waveforms  
Read Cycle No. 1[10, 11]  
t
RC  
ADDRESS  
t
AA  
t
OHA  
DATA OUT  
PREVIOUS DATA VALID  
DATA VALID  
1096  
Read Cycle No. 2 (OE Controlled)[11, 12]  
ADDRESS  
t
RC  
CE  
1
CE  
2
t
ACE  
OE  
t
HZOE  
t
DOE  
t
HZCE  
t
LZOE  
HIGH  
IMPEDANCE  
HIGH IMPEDANCE  
DATA OUT  
DATA VALID  
t
LZCE  
t
PD  
ICC  
t
PU  
V
CC  
50%  
50%  
SUPPLY  
CURRENT  
ISB  
1097  
Notes:  
10. Device is continuously selected. OE, CE1 = VIL, CE2 = VIH  
.
11. WE is HIGH for read cycle.  
12. Address valid prior to or coincident with CE1 transition LOW and CE2 transition HIGH.  
Document #: 38-05032 Rev. **  
Page 6 of 12  
CY7C109  
CY7C1009  
Switching Waveforms (continued)  
Write Cycle No. 1 (CE1 or CE2 Controlled)[13, 14]  
t
WC  
ADDRESS  
t
SCE  
CE  
1
t
SA  
CE  
2
t
SCE  
t
t
HA  
AW  
t
PWE  
WE  
t
t
HD  
SD  
DATA I/O  
DATA VALID  
1098  
Write Cycle No. 2 (WE Controlled, OE HIGH During Write)[13, 14]  
t
WC  
ADDRESS  
t
SCE  
CE  
1
CE  
2
t
SCE  
t
t
HA  
AW  
t
SA  
t
PWE  
WE  
OE  
t
t
SD  
HD  
DATA VALID  
DATA I/O  
IN  
NOTE 15  
t
HZOE  
1099  
Notes:  
13. Data I/O is high impedance if OE = VIH  
.
14. If CE1 goes HIGH or CE2 goes LOW simultaneously with WE going HIGH, the output remains in a high-impedance state.  
Document #: 38-05032 Rev. **  
Page 7 of 12  
CY7C109  
CY7C1009  
Switching Waveforms (continued)  
Write Cycle No. 3 (WE Controlled, OE LOW)[14]  
t
WC  
ADDRESS  
t
SCE  
CE  
1
CE  
2
t
SCE  
t
t
HA  
AW  
t
SA  
t
PWE  
WE  
t
t
HD  
SD  
NOTE 15  
DATA I/O  
DATA VALID  
t
t
LZWE  
HZWE  
1099  
Note:  
15. During this period the I/Os are in the output state and input signals should not be applied.  
Truth Table  
CE1  
H
CE2  
X
OE  
X
WE  
X
I/O0 I/O7  
High Z  
Mode  
Power  
Power-Down  
Power-Down  
Read  
Standby (ISB)  
X
L
X
X
High Z  
Standby (ISB  
)
L
H
L
H
Data Out  
Data In  
High Z  
Active (ICC  
Active (ICC  
Active (ICC)  
)
L
H
X
L
Write  
)
L
H
H
H
Selected, Outputs Disabled  
Document #: 38-05032 Rev. **  
Page 8 of 12  
CY7C109  
CY7C1009  
Ordering Information  
Speed  
Package  
Name  
Operating  
Range  
(ns)  
Ordering Code  
Package Type  
32-Lead (400-Mil) Molded SOJ  
32-Lead (300-Mil) Molded SOJ  
32-Lead (300-Mil) Molded SOJ  
32-Lead (400-Mil) Molded SOJ  
32-Lead (300-Mil) Molded SOJ  
32-Lead (300-Mil) Molded SOJ  
32-Lead TSOP Type I  
10  
CY7C109-10VC  
CY7C1009-10VC  
CY7C1009L-10VC  
CY7C109-12VC  
CY7C1009-12VC  
CY7C1009L-12VC  
CY7C109-12ZC  
CY7C10915VC  
CY7C1009-15VC  
CY7C1009L-15VC  
CY7C10915ZC  
CY7C10920VC  
CY7C1009-20VC  
CY7C10920VI  
CY7C10920ZC  
CY7C109-20ZI  
V33  
V32  
V32  
V33  
V32  
V32  
Z32  
V33  
V32  
V32  
Z32  
V33  
V32  
V33  
Z32  
Z32  
V33  
V32  
V33  
Z32  
Z32  
V33  
V32  
V33  
Commercial  
12  
15  
20  
32-Lead (400-Mil) Molded SOJ  
32-Lead (300-Mil) Molded SOJ  
32-Lead (300-Mil) Molded SOJ  
32-Lead TSOP Type I  
32-Lead (400-Mil) Molded SOJ  
32-Lead (300-Mil) Molded SOJ  
32-Lead (400-Mil) Molded SOJ  
32-Lead TSOP Type I  
Industrial  
Commercial  
Industrial  
32-Lead TSOP Type I  
25  
35  
CY7C10925VC  
CY7C1009-25VC  
CY7C10925VI  
CY7C10925ZC  
CY7C109-25ZI  
32-Lead (400-Mil) Molded SOJ  
32-Lead (300-Mil) Molded SOJ  
32-Lead (400-Mil) Molded SOJ  
32-Lead TSOP Type I  
Commercial  
Industrial  
Commercial  
Industrial  
32-Lead TSOP Type I  
CY7C10935VC  
CY7C1009-35VC  
CY7C10935VI  
32-Lead (400-Mil) Molded SOJ  
32-Lead (300-Mil) Molded SOJ  
32-Lead (400-Mil) Molded SOJ  
Commercial  
Industrial  
Shaded areas contain preliminary information.  
Document #: 38-05032 Rev. **  
Page 9 of 12  
CY7C109  
CY7C1009  
Package Diagrams  
32-Lead (300-Mil) Molded SOJ V32  
51-85041-A  
32-Lead (400-Mil) Molded SOJ V33  
51-85033-A  
Document #: 38-05032 Rev. **  
Page 10 of 12  
CY7C109  
CY7C1009  
Package Diagrams (continued)  
32-Lead Thin Small Outline Package Z32  
51-85056-B  
Document #: 38-05032 Rev. **  
Page 11 of 12  
© Cypress Semiconductor Corporation, 2001. The information contained herein is subject to change without notice. Cypress Semiconductor Corporation assumes no responsibility for the use  
of any circuitry other than circuitry embodied in a Cypress Semiconductor product. Nor does it convey or imply any license under patent or other rights. Cypress Semiconductor does not authorize  
its products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress  
Semiconductor products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress Semiconductor against all charges.  
CY7C109  
CY7C1009  
Document Title: CY7C109, CY7C1009 128K x 8 Static RAM  
Document Number: 38-05032  
Issue  
ECN NO. Date  
Orig. of  
Change  
REV.  
Description of Change  
**  
106826  
09/15/01  
SZV  
Change from Spec number: 38-00140 to 38-05032  
Document #: 38-05032 Rev. **  
Page 12 of 12  

相关型号:

CY7C109-20VIT

Standard SRAM, 128KX8, 20ns, CMOS, PDSO32, 0.400 INCH, SOJ-32
CYPRESS

CY7C109-20ZC

128K x 8 Static RAM
CYPRESS

CY7C109-20ZCT

Standard SRAM, 128KX8, 20ns, CMOS, PDSO32, TSOP1-32
CYPRESS

CY7C109-20ZI

128K x 8 Static RAM
CYPRESS
ETC

CY7C109-25DMB

Standard SRAM, 128KX8, 25ns, CMOS, CDIP32, 0.400 INCH, SIDE BRAZED, CERAMIC, DIP-32
CYPRESS
ETC

CY7C109-25VC

128K x 8 Static RAM
CYPRESS

CY7C109-25VCR

Standard SRAM, 128KX8, 25ns, CMOS, PDSO32, 0.400 INCH, PLASTIC, SOJ-32
CYPRESS

CY7C109-25VI

128K x 8 Static RAM
CYPRESS

CY7C109-25ZC

128K x 8 Static RAM
CYPRESS

CY7C109-25ZCT

Standard SRAM, 128KX8, 25ns, CMOS, PDSO32, TSOP1-32
CYPRESS