CY7C148-35PC Cypress Semiconductor Corp, CY7C148-35PC Datasheet - Page 5

• Manufacturer Part Number: CY7C148-35PC
• Description: 1KX4 18-PIN POWER-DOWN SRAM
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C148-35PC

• Format - Memory: RAM
• Memory Type: SRAM - Asynchronous
• Memory Size: 4K (1K x 4)
• Speed: 35ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 18-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS compliant by exemption

Switching Waveforms
Document #: 38-05059 Rev. *B
Read Cycle No. 1
Read Cycle No. 2
Write Cycle No. 1 (WE Controlled)
Notes
8. WE is HIGH for read cycle.
9. Device is continuously selected, CS = V
10. Address valid prior to or coincident with CS transition LOW.
DATA OUT
DATA OUT
CURRENT
DATA OUT
ADDRESS
ADDRESS
SUPPLY
DATA IN
V
CS
CS
WE
CC
[8,9]
[8,10]
PREVIOUS DATA VALID
HIGH IMPEDANCE
t
PU
t
LZ
t
DATA UNDEFINED
AS
IL
t
.
ACS
t
OH
50%
t
AA
t
CW
t
AW
t
RC
t
WC
t
RC
DATA–IN VALID
t
WZ
t
t
WP
DW
DATA VALID
HIGH IMPEDANCE
t
DH
DATA VALID
t
t
OW
WA
t
HZ
t
PD
50%
IMPEDANCE
HIGH
CY7C148
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