Philips HEF4514BU, HEF4514BT, HEF4514BPB, HEF4514BP, HEF4514BDB Datasheet
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DATA SH EET
Product specification
File under Integrated Circuits, IC04
January 1995
INTEGRATED CIRCUITS
HEF4514B
MSI
1-of-16 decoder/demultiplexer with
input latches
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
January 1995 2
Philips Semiconductors Product specification
1-of-16 decoder/demultiplexer with input latches
HEF4514B
MSI
DESCRIPTION
The HEF4514B is a 1-of-16 decoder/demultiplexer, having
four binary weighted address inputs (A0to A3), a latch
enable input (EL), and an active LOW enable input (E).
The 16 outputs (O0to O15) are mutually exclusive active
HIGH. When EL is HIGH, the selected output is
determined by the data on An. When EL goes LOW, the
last data present at A
n
are stored in the latches and the
outputs remain stable. When E is LOW, the selected
output, determined by the contents of the latch, is HIGH.
AtE HIGH, all outputs are LOW. The enable input (E) does
not affect the state of the latch. When the HEF4514B is
used as a demultiplexer, E is the data input and A0to
A3are the address inputs.
Fig.1 Functional diagram.
PINNING
A
0
to A
3
address inputs
E enable input (active LOW)
EL latch enable input
O
0
to O
15
outputs (active HIGH)
Fig.2 Pinning diagram.
APPLICATION INFORMATION
Some examples of applications for the HEF4514B are:
• Digital multiplexing.
• Address decoding.
• Hexadecimal/BCD decoding.
FAMILY DATA, I
DD
LIMITS category MSI
See Family Specifications
HEF4514BP(N): 24-lead DIL; plastic
(SOT101-1)
HEF4514BD(F): 24-lead DIL; ceramic (cerdip)
(SOT94)
HEF4514BT(D): 24-lead SO; plastic
(SOT137-1)
( ): Package Designator North America
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