CY7C199L-12VI datasheet(6/13 Pages) CYPRESS

Part #	CY7C199L-12VI

Description	32K x 8 Static RAM

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Manufacturer	CYPRESS [Cypress Semiconductor]

Direct Link	http://www.cypress.com

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CY7C199

Document #: 38-05160 Rev. *A

Page 6 of 13

Write Cycle No. 1 (WE Controlled)[10, 15, 16]

Write Cycle No. 2 (CE Controlled)[10, 15, 16]

Write Cycle No. 3 (WE Controlled OE LOW)[11, 16]

Notes:

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

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

Switching Waveforms (continued)

tHD

tSD

tPWE

tSA

tHA

tAW

tWC

DATA I/O

ADDRESS

CE

WE

OE

tHZOE

DATAIN VALID

tWC

tAW

tSA

tHA

tHD

tSD

tSCE

WE

DATA I/O

ADDRESS

CE

DATA IN VALID

DATA I/O

ADDRESS

tHD

tSD

tLZWE

tSA

tHA

tAW

tWC

CE

WE

tHZWE

DATAIN VALID

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