Philips HEF4515BU, HEF4515BT, HEF4515BPB, HEF4515BP, HEF4515BDB Datasheet

INTEGRATED CIRCUITS

DATA SHEET

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

HEF4515B MSI

1-of-16 decoder/demultiplexer with input latches

Product specification			January 1995
File under Integrated Circuits, IC04

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 (A0 to A3), a latch

enable input (EL), and an active LOW enable input (E). The 16 outputs (O0 to 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 An 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 A0 to

A3 are the address inputs.

Fig.1 Functional diagram.

						Fig.2 Pinning diagram.
PINNING
	A0 to A3					address inputs
						enable input (active LOW)
	E
	EL					latch enable input
					15	outputs (active LOW)
	O		0 to	O

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

APPLICATION INFORMATION

Some examples of applications for the HEF4515B are:

∙Digital multiplexing.

∙Address decoding.

∙Hexadecimal/BCD decoding.

FAMILY DATA, IDD LIMITS category MSI

See Family Specifications

January 1995

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