CY7C025-25JI Cypress Semiconductor Corp, CY7C025-25JI Datasheet - Page 12

• Manufacturer Part Number: CY7C025-25JI
• Description: SRAM Chip Async Dual 5V 128K-Bit 8K x 16 25ns 84-Pin PLCC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C025-25JI

• Package: 84PLCC
• Timing Type: Asynchronous
• Density: 128 Kb
• Typical Operating Supply Voltage: 5 V
• Address Bus Width: 12 Bit
• Number Of I/o Lines: 16 Bit
• Number Of Ports: 2
• Number Of Words: 8K

Switching Waveforms
Write Timing with Busy Input (M/S=LOW)
Timing Diagram of Read with BUSY (M/S=HIGH)
Note:
36. CE
ADDRESS
ADDRESS
DATA
DATA IN
BUSY
R/W
L
OUTL
BUSY
= CE
R/W
R
R
R
L
L
R
= LOW.
(continued)
t
PS
t
WB
t
[36]
BLA
MATCH
MATCH
t
WC
t
PWE
12
t
PWE
t
WH
t
VALID
SD
t
WDD
t
DDD
t
HD
t
BHA
t
BDD
CY7C024/0241
CY7C025/0251
VALID
7C024–22
7C024–21