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Switching waveforms – Cypress CY62147DV30 User Manual

Page 7

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CY62147DV30

Document #: 38-05340 Rev. *F

Page 7 of 12

Write Cycle No. 1 (WE Controlled)

[17, 21, 22]

Write Cycle No. 2 (CE

Controlled)

[17, 21, 22]

Notes:

21. Data I/O is high impedance if OE = V

IH

.

22. If CE goes HIGH simultaneously with WE = V

IH

, the output remains in a high-impedance state.

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

Switching Waveforms

(continued)

t

HD

t

SD

t

PWE

t

SA

t

HA

t

AW

t

WC

DATA I/O

ADDRESS

CE

WE

OE

t

HZOE

DATA

IN

NOTE

23

BHE/BLE

t

BW

t

SCE

t

HD

t

SD

t

PWE

t

HA

t

AW

t

SCE

t

WC

t

HZOE

DATA

IN

CE

ADDRESS

WE

DATA I/O

OE

NOTE 23

BHE/BLE

t

BW

t

SA

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