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Switching waveforms, Truth table – Cypress CY7C1018CV33 User Manual

Page 5

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CY7C1018CV33

Document #: 38-05131 Rev. *D

Page 5 of 7

Write Cycle No. 2 (WE Controlled, OE HIGH During Write)

[14, 15]

Write Cycle No. 3 (WE Controlled, OE LOW)

[10, 15]

Switching Waveforms

(continued)

t

HD

t

SD

t

PWE

t

SA

t

HA

t

AW

t

SCE

t

WC

t

HZOE

DATA

IN

VALID

CE

ADDRESS

WE

DATA I/O

OE

NOTE

16

DATA VALID

t

HD

t

SD

t

LZWE

t

PWE

t

SA

t

HA

t

AW

t

SCE

t

WC

t

HZWE

CE

ADDRESS

WE

DATA I/O

NOTE

16

Truth Table

CE

OE

WE

I/O

0

–I/O

7

Mode

Power

H

X

X

High-Z

Power-down

Standby (I

SB

)

L

L

H

Data Out

Read

Active (I

CC

)

L

X

L

Data In

Write

Active (I

CC

)

L

H

H

High-Z

Selected, Outputs Disabled

Active (I

CC

)

Note:

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

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