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
HEF4555B MSI
Dual 1-of-4 decoder/demultiplexer
Product specification |
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January 1995 |
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File under Integrated Circuits, IC04 |
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Philips Semiconductors |
Product specification |
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Dual 1-of-4 decoder/demultiplexer
HEF4555B
MSI
DESCRIPTION
The HEF4555B is a dual 1-of-4 decoder/demultiplexer.
Each has two address inputs (A0 and A1), an active LOW
enable input (E) and four mutually exclusive outputs which are active HIGH (O0 to O3). When used as a decoder,
E when HIGH, forces O0 to O3 LOW. When used as a demultiplexer, the appropriate output is selected by the information on A0 and A1 with E as data input. All unselected outputs are LOW.
Fig.2 Pinning diagram.
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
PINNING |
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enable inputs (active LOW) |
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E |
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A0 and A1 |
address inputs |
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O0 to O3 |
outputs (active HIGH) |
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FAMILY DATA, IDD LIMITS category MSI
See Family Specifications
Fig.1 Functional diagram.
January 1995 |
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