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Switching waveforms – Cypress CY7C1007B User Manual

Page 5

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CY7C107B

CY7C1007B

Document #: 38-05030 Rev. **

Page 5 of 9

Switching Waveforms

Read Cycle No. 1

[10, 11]

Read Cycle No. 2

[11, 12]

Write Cycle No. 1 (CE Controlled)

[13]

Notes:

9.

No input may exceed V

CC

+ 0.5V.

10. Device is continuously selected, CE = V

IL

.

11.

WE is HIGH for read cycle.

12. Address valid prior to or coincident with CE transition LOW.

PREVIOUS DATA VALID

DATA VALID

t

RC

t

AA

t

OHA

107-6

ADDRESS

DATA OUT

50%

50%

DATA VALID

t

RC

t

ACE

t

LZCE

t

PU

HIGH IMPEDANCE

t

HZCE

t

PD

HIGH

I

CC

I

SB

IMPEDANCE

ADDRESS

CE

DATA OUT

V

CC

SUPPLY

CURRENT

107-7

DATA VALID

t

SCE

t

AW

t

SA

t

PWE

t

HA

t

HD

t

SD

t

WC

HIGH IMPEDANCE

ADDRESS

CE

WE

DATA OUT

DATA IN

107-8

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