MCM44256B View Datasheet(PDF) - Motorola => Freescale

Part Name

Description

Manufacturer

MCM44256B

4MB R4000 Secondary Cache Fast Static RAM Module Set

Motorola => Freescale 

A1 – A17

READ CYCLE 1 (See Note)

tAVQV

A0

Q (DATA OUT)

tA0XQX

tAXQX

PREVIOUS DATA VALID

tA0VQV

NOTE: Module is continuously selected (DCS or TCS = VIL, OE = VIL).

A1 – A17

READ CYCLE 2 (See Note)

tAVQV

A0

DCS/TCS

(DATA/TAG ENABLE)

OE (OUTPUT ENABLE)

Q (DATA OUT)

tA0VQV

tELQV

tELQX

tGLQX

tGLQV

NOTE: Address valid prior to or coincident with DCS or TCS going low.

DATA VALID

tEHQZ

tGHQZ

DATA VALID

MOTOROLA FAST SRAM

MCM44256B SERIES

5

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