Philips hef4502b DATASHEETS

INTEGRATED CIRCUITS

DATA SH EET

For a complete data sheet, please also download:

•The IC04 LOCMOS HE4000B Logic
Family Specifications HEF, HEC

•The IC04 LOCMOS HE4000B Logic
Package Outlines/Information HEF, HEC

HEF4502B
buffers

Strobed hex inverter/buffer

Product specification
File under Integrated Circuits, IC04

January 1995

Philips Semiconductors Product specification

Strobed hex inverter/buffer

DESCRIPTION

The HEF4502B consists of six inverter/buffers with 3-state
outputs. When the output enable input (EO) is HIGH all six
outputs (O1to O6) are in the high impedance OFF-state.
When the enable input (E) is HIGH all six outputs are
switched to LOW. The outputs have a 2-TTL load drive
capability.

HEF4502B

buffers

Fig.2 Pinning diagram.

HEF4502BP(N): 16-lead DIL; plastic (SOT38-1)
HEF4502BD(F): 16-lead DIL; ceramic (cerdip) (SOT74)
HEF4502BT(D): 16-lead SO; plastic (SOT109-1)
( ): Package Designator North America

Fig.1 Functional diagram.

TRUTH TABLE

INPUTS OUTPUT

D

LLL H
HLL L
XHL L
XXH Z

E EO O

n

PINNING

to D

D

1

6

E enable input
EO output enable input
O

to O

1

6

n

data inputs

3-state outputs

Fig.3 Logic diagram.

Notes

1. H = HIGH state (the more pos. voltage)
L = LOW state (the less pos. voltage)
X = state is immaterial
Z = high impedance off state

January 1995 2

FAMILY DATA, IDDLIMITS category BUFFERS

See Family Specifications