CY62156ESL Datasheet, PDF(10/16 Page) Cypress Semiconductor

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CY62156ESL Datasheet, PDF (10/16 Pages) Cypress Semiconductor – 8-Mbit (512 K x 16) Static RAM

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CY62156ESL MoBLÂ®

Switching Waveforms (continued)

Figure 8. Write Cycle 3: WE controlled, OE LOW [24]

ADDRESS

CE1

tWC

tSCE

CE2

BHE/BLE

tBW

tAW

tHA

tSA

tPWE

DATA I/O

ADDRESS

NOTE 25

tHZWE

tSD

VALID DATA

tHD

tLZWE

Figure 9. Write Cycle 4: BHE/BLE Controlled, OE LOW [24]

tWC

CE1

CE2

BHE/BLE

tSA

DATA I/O

NOTE 25

tSCE

tAW

tBW

tPWE

tSD

VALID DATA

tHA

tHD

Notes

24. If CE1 goes HIGH and CE2 goes LOW simultaneously with WE = VIH, the output remains in a high impedance state.

25. During this period, the I/Os are in output state. Do not apply input signals.

Document Number: 001-54995 Rev. *D

Page 10 of 16

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