CY7C1470V25-200BZC 参数 Datasheet PDF下载

CY7C1470V25

CY7C1472V25

CY7C1474V25

Switching Waveforms

Read/Write/Timing

1

CLK

t

CENS

t

CENH

t

CH

t

CL

2

t CYC

3

4

5

6

7

8

9

10

CEN

t

CES

t

CEH

CE

ADV/LD

WE

BW

x

ADDRESS

t

AS

A1

t

AH

A2

t

DS

t

DH

A3

A4

t

CO

t

CLZ

t

DOH

A5

t

OEV

A6

t

CHZ

A7

Data

In-Out (DQ)

OE

WRITE

D(A1)

WRITE

D(A2)

D(A1)

D(A2)

D(A2+1)

Q(A3)

Q(A4)

t

OEHZ

Q(A4+1)

D(A5)

Q(A6)

t

DOH

t

OELZ

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

DON’T CARE

UNDEFINED

Notes

22. For this waveform ZZ is tied LOW.

23. 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.

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

Document Number: 38-05290 Rev. *L

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