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74HCT138

Diodes
Part Number 74HCT138
Manufacturer Diodes
Description 3 TO 8 LINE DECODER DEMULTIPLEXER
Published Jul 27, 2015
Detailed Description 74HCT138 3 TO 8 LINE DECODER DEMULTIPLEXER Description The 74HCT138 is a high speed CMOS device that is designed to be ...
Datasheet PDF File 74HCT138 PDF File

74HCT138
74HCT138

Overview
74HCT138 3 TO 8 LINE DECODER DEMULTIPLEXER Description The 74HCT138 is a high speed CMOS device that is designed to be pin compatable with 74LS low power Schottky types.
Pin Assignments The device accepts a three bit binary weighted address on input pins A0, A1 and A2 and when enabled will produce one active low output with the remaing seven being high.
There are two active LOW enable inputs E1 and E2, and one active HIGH enable input E3.
The disabled device state results in all outputs being high.
The enable state occurs with E1 and E2 asserted low and E3 asserted high.
The multiple enable lines allow for the parallel expansion of decoders to create 4-to-16 line versions with no additional parts and 5-to-32 versions with the addition of a single inverter.
Features • Wide Supply Voltage Range from 4.
5V to 5.
5V • Sinks or sources 8mA at VCC = 4.
5V • CMOS low power consumption • Schmitt Trigger Action at All Inputs • Inputs accept up to 6.
0V • ESD Protection Tested per JESD 22  Exc...


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