CY7C1345-117AC 데이터 시트보기 (PDF) - Cypress Semiconductor

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CY7C1345-117AC

128K x 36 Synchronous Flow-Through 3.3V Cache RAM

Cypress Semiconductor 

PRELIMINARY

Timing Diagrams (continued)

Pipeline Timing

CLK

tCH

tCYC

tAS

ADD A

B

C

D

tADS

ADSP

tADH

CY7C1345

tCL

E

F

G

H

ADSC

ADV

CE1

tCES

tCEH

CE

WE

OE

tWES

ADSP ignored

with CE1 HIGH

tWEH

tCLZ

Data

In/Out

tCDV

Q(A) Q(B) Q(C) Q(D)

Device originally

deselected

D (E) D (F) D (G) DD((CH))

tDOH

tCHZ

WE is the combination of BWE, BWS[1:0], and GW to define a write cycle (see Write Cycle Definition table).

CE is the combination of CE2 and CE3. All chip selects need to be active in order to select

the device. RAx stands for Read Address X, WAx stands for Write Address X, Dx stands for Data-in X,

Qx stands for Data-out X.

= DON’T CARE

= UNDEFINED

11

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