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Switching waveforms – Cypress CY62147DV18 User Manual

Page 7

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CY62147DV18

MoBL2™

Document #: 38-05343 Rev. *B

Page 7 of 11

Notes:

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

IH

.

18. If CE goes HIGH simultaneously with WE = V

IH

, the output remains in a high-impedance state.

19. 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

Write Cycle No. 1 (WE Controlled)

[13, 17, 18]

19

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 19

Write Cycle No. 2 (CE

Controlled)

BHE/BLE

t

BW

[13, 17, 18]

t

SA

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