Philips HEF4555BT, HEF4555BPB, HEF4555BP, HEF4555BDB, HEF4555BD Datasheet
DATA SH EET
Product specification
File under Integrated Circuits, IC04
January 1995
INTEGRATED CIRCUITS
HEF4555B
MSI
Dual 1-of-4 decoder/demultiplexer
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
Dual 1-of-4 decoder/demultiplexer
HEF4555B
MSI
DESCRIPTION
The HEF4555B is a dual 1-of-4 decoder/demultiplexer.
Each has two address inputs (A0and A1), an active LOW
enable input (E) and four mutually exclusive outputs which
are active HIGH (O0to O3). When used as a decoder,
E when HIGH, forces O0to O3LOW. When used as a
demultiplexer, the appropriate output is selected by the
information on A0and A1with E as data input. All
unselected outputs are LOW.
Fig.1 Functional diagram.
PINNING
FAMILY DATA, IDDLIMITS category MSI
See Family Specifications
HEF4555BP(N): 16-lead DIL; plastic
(SOT38-1)
HEF4555BD(F): 16-lead DIL; ceramic (cerdip)
(SOT74)
HEF4555BT(D): 16-lead SO; plastic
(SOT109-1)
( ): Package Designator North America
E enable inputs (active LOW)
A
0
and A1address inputs
O
0
to O
3
outputs (active HIGH)
Fig.2 Pinning diagram.
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