ML7005MB datasheet(13/25 Pages) OKI

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ML7005

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Processor Interface Charactceristics (Intel Processor Mode)

Figure 4 Processor Interface Timing (Intel Processor Mode : PTYPE="1")

Parameter

Symbol

Condition

Typ.

Unit

Address Data Setup Time

tAL

—ns

—

Address Data Hold Time

tLA

——

Min.

Max.

—

ALE Signal Time

tLL

——

—

(VDD = 2.7 to 5.5 V, Ta = –30 to +85°C)

Chip Select Setup Time before Read

tCRS

——

—

Chip Select Hold Time after Read

tCRH

——

—

READ Data Output Delay Time

tRD

VOL £ 0.4 V, VOH ≥ VDD – 0.4 V

180

Data Float Time after Read

tRDF

—37

READ Signal Time

tRW

——

—

200

Chip Select Setup Time before Write

tCWS

——

—

Chip Select Hold Time after Write

tCWH

——

—

WR Signal Time

tWW

——

—

140

Data Setup Time before Write

tDW

——

—

Data Hold Time

tWD

——

—

ALE

tLL

tRW

tWW

READ

D0 to D3

tAL tLA

tRD

tRDF

tAL

tLA

tDW tWD

tCRS

tCRH

tCWH

tCWS

ADDRESS

READ DATA

ADDRESS

WRITE DATA

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