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Switching waveforms – Cypress CY7C09079V User Manual

Page 13

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CY7C09079V/89V/99V

CY7C09179V/89V/99V

Document #: 38-06043 Rev. *C

Page 13 of 21

Figure 12. Flow-Through Read-to-Write-to-Read (OE = V

IL

)

[17, 19, 26, 27, 28]

Figure 13. Flow-Through Read-to-Write-to-Read (OE Controlled)

[17, 20, 26, 27, 28]

Switching Waveforms

(continued)

t

CH1

t

CL1

t

CYC1

t

SC

t

HC

t

SW

t

HW

t

SA

t

HA

t

SW

t

HW

t

SD

t

HD

A

n

A

n+1

A

n+2

A

n+2

A

n+3

A

n+4

D

n+2

Q

n

Q

n+1

Q

n+3

t

CD1

t

CD1

t

DC

t

CKHZ

t

CD1

t

CD1

t

CKLZ

t

DC

READ

NO

OPERATION

WRITE

READ

CLK

CE

0

CE

1

ADDRESS

R/W

DATA

IN

DATA

OUT

Q

n

t

CH1

t

CL1

t

CYC1

t

SC

t

HC

t

SW

t

HW

t

SA

t

HA

t

CD1

t

DC

t

OHZ

READ

A

n

A

n+1

A

n+2

A

n+3

A

n+4

A

n+5

D

n+2

D

n+3

t

SW

t

HW

t

SD

t

HD

t

CD1

t

CD1

t

CKLZ

t

DC

Q

n+4

t

OE

WRITE

READ

CLK

CE

0

CE

1

ADDRESS

R/W

DATA

IN

DATA

OUT

OE

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