CY7C149-45PC Cypress Semiconductor Corp, CY7C149-45PC Datasheet - Page 6

• Manufacturer Part Number: CY7C149-45PC
• Description: 1KX4 18-PIN SRAM
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C149-45PC

• Format - Memory: RAM
• Memory Type: SRAM - Asynchronous
• Memory Size: 4K (1K x 4)
• Speed: 45ns
• 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: Lead free / RoHS Compliant

Switching Waveforms
Document #: 38-05059 Rev. *B
Note:
11. If CS goes HIGH simultaneously with WE HIGH, the output remains in a high-impedance state.
Write Cycle No. 2 (CSControlled)
DATA OUT
ADDRESS
DATA IN
CS
WE
(continued)
DATA UNDEFINED
[11]
t
AW
t
CW
t
WC
t
WZ
DATA
t
DW
t
WP
IN
VALID
HIGH IMPEDANCE
t
DH
t
WR
CY7C148
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