HD74HC139 - Dual 2-to-4-line Decoders/Demultiplexers

Product Overview

Hitachi Semiconductor

Part number	HD74HC139
Manufacturer	Hitachi Semiconductor
File Size	51.45 KB
Description	Dual 2-to-4-line Decoders/Demultiplexers
Datasheet	HD74HC139 Datasheet
Additional preview pages of the HD74HC139 datasheet.

The HD74HC139 contains two independent two-to-four-line decoders each with a single active low enable input (1G or 2G).

Data on the slect inputs (1A and 1B or 2A and 2B) cause one of the four normally high outputs to go low.

High Speed Operation: tpd (A, B to Y, 4 levels) = 14 ns typ (C L = 50 pF) High Output Current: Fanout of 10 LSTTL Loads Wide Operating Voltage: VCC = 2 V to 6 V Low Input Current: 1 µA max Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C) Function Table Inputs Enable G H L L L L Select B X L L H H A X L H L H Outputs Y0 H L H H H Y1 H H L H H Y2 H H H L H Y3 H H H H L HD74HC139 Pin Arrangement Enable 1G 1 1A 2 Select 1B 3 1Y0 4.

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Published: Mar 23, 2005 |