Philips HEF4515BU, HEF4515BT, HEF4515BPB, HEF4515BP, HEF4515BDB Datasheet

DATA SH EET

Product specification
File under Integrated Circuits, IC04

January 1995

INTEGRATED CIRCUITS

HEF4515B
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

HEF4515B

MSI

DESCRIPTION

The HEF4515B 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
LOW. 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 LOW. At
E HIGH, all outputs are HIGH. The enable input (E) does
not affect the state of the latch. When the HEF4515B 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
O0to O

15

outputs (active LOW)

Fig.2 Pinning diagram.

APPLICATION INFORMATION

Some examples of applications for the HEF4515B are:

• Digital multiplexing.

• Address decoding.

• Hexadecimal/BCD decoding.

FAMILY DATA, I

DD

LIMITS category MSI

See Family Specifications

HEF4515BP(N): 24-lead DIL; plastic

(SOT101-1)

HEF4515BD(F): 24-lead DIL; ceramic (cerdip)

(SOT94)

HEF4515BT(D): 24-lead SO; plastic

(SOT137-1)

( ): Package Designator North America