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
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