74HC238 Philips, 74HC238 Datasheet

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74HC238

Manufacturer Part Number
74HC238
Description
3-to-8 line decoder/demultiplexer
Manufacturer
Philips
Datasheet

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Product specification
File under Integrated Circuits, IC06
DATA SHEET
74HC/HCT238
3-to-8 line decoder/demultiplexer
For a complete data sheet, please also download:
The IC06 74HC/HCT/HCU/HCMOS Logic Family Specifications
The IC06 74HC/HCT/HCU/HCMOS Logic Package Information
The IC06 74HC/HCT/HCU/HCMOS Logic Package Outlines
INTEGRATED CIRCUITS
December 1990

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74HC238 Summary of contents

Page 1

DATA SHEET For a complete data sheet, please also download: The IC06 74HC/HCT/HCU/HCMOS Logic Family Specifications The IC06 74HC/HCT/HCU/HCMOS Logic Package Information The IC06 74HC/HCT/HCU/HCMOS Logic Package Outlines 74HC/HCT238 3-to-8 line decoder/demultiplexer Product specification File under Integrated Circuits, IC06 INTEGRATED ...

Page 2

... Philips Semiconductors 3-to-8 line decoder/demultiplexer FEATURES Demultiplexing capability Multiple input enable for easy expansion Ideal for memory chip select decoding Active HIGH mutually exclusive outputs Output capability: standard I category: MSI CC GENERAL DESCRIPTION The 74HC/HCT238 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL) ...

Page 3

... Philips Semiconductors 3-to-8 line decoder/demultiplexer PIN DESCRIPTION PIN NO. SYMBOL GND 15, 14, 13, 12, 11, 10 Fig.1 Pin configuration. (a) December 1990 NAME AND FUNCTION address inputs 2 enable inputs (active LOW) 2 enable input (active HIGH) ...

Page 4

... Philips Semiconductors 3-to-8 line decoder/demultiplexer Fig.4 Functional diagram. FUNCTION TABLE INPUTS Note HIGH voltage level L = LOW voltage level X = don’ ...

Page 5

... Philips Semiconductors 3-to-8 line decoder/demultiplexer DC CHARACTERISTICS FOR 74HC For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications” Output capability: standard I category: MSI CC AC CHARACTERISTICS FOR 74HC GND = ns SYMBOL PARAMETER propagation delay PHL PLH ...

Page 6

... Philips Semiconductors 3-to-8 line decoder/demultiplexer DC CHARACTERISTICS FOR 74HCT For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications” Output capability: standard I category: MSI CC Note to HCT types The value of additional quiescent supply current ( I To determine I per input, multiply this value by the unit load coefficient shown in the table below. ...

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... Philips Semiconductors 3-to-8 line decoder/demultiplexer AC WAVEFORMS ( 50 GND HCT 1 GND Fig.6 Waveforms showing the address input (A the output transition times GND HCT 1 GND Fig.7 Waveforms showing the enable input (E times ...

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