CY7C1399B-12ZC(2005) View Datasheet(PDF) - Cypress Semiconductor

Part Name

Description

Manufacturer

CY7C1399B-12ZC
(Rev.:2005)

256K(32K x 8) Static RAM

Cypress Semiconductor 

Switching Waveforms (continued)

Write Cycle No. 1 (WE Controlled)[9, 14, 15]

ADDRESS

CE

tSA

WE

tWC

tAW

tPWE

CY7C1399B

tHA

OE

DATA I/O

NOTE 16

tHZOE

Write Cycle No. 2 (CE Controlled)[9, 14, 15]

ADDRESS

CE

tSA

tSD

DATAINVALID

tWC

tAW

tSCE

WE

DATA I/O

Write Cycle No. 3 (WE Controlled, OE LOW)[10, 15]

ADDRESS

tSD

DATAINVALID

tWC

CE

tAW

tSA

WE

DATA I/O

NOTE 16

tHZWE

tSD

DATA IN VALID

Notes:

14. Data I/O is high impedance if OE = VIH.

15. If CE goes HIGH simultaneously with WE HIGH, the output remains in a high-impedance state.

16. During this period, the I/Os are in the output state and input signals should not be applied.

tHD

tHA

tHD

tHA

tHD

tLZWE

Document #: 38-05071 Rev. *D

Page 7 of 10

Share Link: