74F827SC datasheet(3/8 Pages) NSC

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Unit LoadingFan Out

54F74F

Pin Names

Description

Input IIH IIL

HIGHLOW

Output IOH IOL

OE1 OE2

Output Enable Input

1010

20 mA b06 mA

D0–D7

Data Inputs

1010

20 mA b06 mA

O0–O7

Data Outputs TRI-STATE 6001066 (80) b12 mA64 mA (48 mA)

Functional Description

The ’F827 and ’F828 are line drivers designed to be em-

ployed as memory address drivers clock drivers and bus-

oriented transmittersreceivers which provide improved PC

board density The devices have TRI-STATE outputs con-

trolled by the Output Enable (OE) pins The outputs can sink

64 mA (48 mA mil) and source 15 mA Input clamp diodes

limit high-speed termination effects

Function Table

Inputs

Outputs

Function

’F827

’F828

Transparent

High Z

H e HIGH Voltage level

L e LOW Voltage Level

Z e High Impedance

X e Immaterial

Logic Diagrams

’F827

TLF9598 – 4

Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays

’F828

TLF9598 – 11

Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays

74F827SC Datasheet(PDF) 3 Page - National Semiconductor (TI)

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