74F189PC datasheet(2/8 Pages) NSC

部品番号	74F189PC

部品情報	64-Bit Random Access Memory with TRI-STATEE Outputs

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メーカー	NSC [National Semiconductor (TI)]

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Unit LoadingFan Out

54F74F

Pin Names

Description

UL

Input IIH IIL

HIGHLOW

Output IOH IOL

A0–A3

Address Inputs

1010

20 mA b06 mA

CS

Chip Select Input (Active LOW)

1010

20 mA b12 mA

WE

Write Enable Input (Active LOW)

1010

20 mA b06 mA

D0–D3

Data Inputs

1010

20 mA b06 mA

O0–O3

Inverted Data Outputs

15040 (333)

b

30 mA24 mA (20 mA)

Function Table

Inputs

Operation

Condition of Outputs

CS

WE

L

Write

High Impedance

L

H

Read

Complement of Stored Data

H

X

Inhibit

High Impedance

H e HIGH Voltage Level

L e LOW Voltage Level

X e Immaterial

Block Diagram

TLF9493 – 5

2

同様の部品番号 - 74F189PC

メーカー	部品番号	データシート	部品情報
Fairchild Semiconductor	74F189PC	58Kb / 6P	64-Bit Random Access Memory with 3-STATE Outputs

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