HD74HCT138 - 3-to-8-line Decoder/Demultiplexer

Product Overview

Hitachi Semiconductor

Part number	HD74HCT138
Manufacturer	Hitachi Semiconductor
File Size	47.91 KB
Description	3-to-8-line Decoder/Demultiplexer
Datasheet	HD74HCT138 Datasheet
Additional preview pages of the HD74HCT138 datasheet.

The HD74HCT138 has 3 binary select inputs (A, B, and C).

If the device is enabled these inputs determine which one of the eight normally high outputs will go low.

Two active low and one active high enables (G1, G2A and G2B) are provided to ease the cascading of decoders.

LSTTL Output Logic Level Compatibility as well as CMOS Output Compatibility High Speed Operation: tpd (A, B, C to Y) = 18.5 ns typ (CL = 50 pF) High Output Current: Fanout of 10 LSTTL Loads Wide Operating Voltage: VCC = 4.5 to 5.5 V Low Input Current: 1 µA max Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C) HD74HCT138 Function Table Inputs Enable G1 X X L H H H H H H H H G2A X H X L L L L L L L L G2B H X X L L L L L L.

HD74HCT1G00 - 2-input NAND Gate (Renesas Technology)
HD74HCT1G08 - 2-input AND Gate (Renesas Technology)
HD74HCT1G32 - High Speed CMOS two input OR gate Using Silicon Gate CMOS Process (Renesas Technology)
HD74HCT1G66 - Analog Switch (Renesas Technology)
HD74HCT238 - 3-to-8-line Decoder/Demultiplexer (Renesas)
HD74HC00 - Quad. 2-input NAND Gates (Renesas)
HD74HC01 - Quad. 2-input NAND Gates (Renesas)
HD74HC02 - Quad. 2-input NOR Gates (Renesas)
HD74HC04 - Hex Inverters (Renesas)
HD74HC05 - Hex Inverters (Renesas)

Other Datasheets by Hitachi Semiconductor

Published: Mar 23, 2005 |