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Switching waveforms – Cypress CY7C1350G User Manual

Page 10

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CY7C1350G

Document #: 38-05524 Rev. *F

Page 10 of 15

Switching Waveforms

Read/Write Timing

[19, 20, 21]

Notes:

19. For this waveform ZZ is tied LOW.
20. When CE is LOW, CE

1

is LOW, CE

2

is HIGH and CE

3

is LOW. When CE is HIGH, CE

1

is HIGH or CE

2

is LOW or CE

3

is HIGH.

21. Order of the Burst sequence is determined by the status of the MODE (0 = Linear, 1 = Interleaved). Burst operations are optional.

WRITE

D(A1)

1

2

3

4

5

6

7

8

9

CLK

t CYC

t

CL

t

CH

10

CE

t

CEH

t

CES

WE

CEN

t

CENH

t

CENS

BW

[A:D]

ADV/LD

t

AH

t

AS

ADDRESS

A1

A2

A3

A4

A5

A6

A7

t

DH

t

DS

Data

In-Out (DQ)

t

CLZ

D(A1)

D(A2)

D(A5)

Q(A4)

Q(A3)

D(A2+1)

t

DOH

t

CHZ

t

CO

WRITE

D(A2)

BURST
WRITE

D(A2+1)

READ

Q(A3)

READ

Q(A4)

BURST

READ

Q(A4+1)

WRITE

D(A5)

READ

Q(A6)

WRITE

D(A7)

DESELECT

OE

t

OEV

t

OELZ

t

OEHZ

t

DOH

DON’T CARE

UNDEFINED

Q(A6)

Q(A4+1)

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