CYM1841A Просмотр технического описания (PDF) - Cypress Semiconductor

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CYM1841A

256K x 32 Static RAM Module

Cypress Semiconductor 

CYM1841A

CYM1841C

Switching Waveforms (continued)

Write Cycle No. 2 (CS Controlled)[7, 11]

ADDRESS

CS

WE

DATA IN

DATA OUT

tWC

tSA

tAW

DATA UNDEFINED

tSCS

tHA

tPWE

tSD

tHD

DATA VALID

tHZWE

HIGH IMPEDANCE

Notes:

11. If CS goes HIGH simultaneously with WE HIGH, the output remains in a high-impedance state.

Truth Table

CS WE OE Input/Output

H X X High Z

L H L Data Out

L L X Data In

L H H High Z

Mode

Deselect/Power-Down

Read

Write

Deselect

1841A–9

7

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