74F219CW View Datasheet(PDF) - Fairchild Semiconductor

Part Name

Description

Manufacturer

74F219CW

64-Bit Random Access Memory with 3-STATE Outputs

Fairchild Semiconductor 

Unit Loading/Fan Out

Pin Names

A0–A3

CS

WE

D0–D3

O0–O3

Description

Address Inputs

Chip Select Input (Active LOW)

Write Enable Input (Active LOW)

Data Inputs

3-STATE Data Outputs

U.L.

HIGH/LOW

1.0/1.0

1.0/2.0

1.0/1.0

1.0/1.0

150/40 (33.3)

Input IIH/IIL

Output IOH/IOL

20 µA/−0.6 mA

20 µA/−1.2 mA

20 µA/−0.6 mA

20 µA/−0.6 mA

−3 mA/24 mA (20 mA)

Function Table

Inputs

CS

WE

L

L

L

H

H

X

H = HIGH Voltage Level

L = LOW Voltage Level

X = Immaterial

Operation

Write

Read

Inhibit

Condition of Outputs

High Impedance

True Stored Data

High Impedance

Block Diagram

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