SN54HCT138 Datasheet - Texas Instruments

SN54HCT138, 3-Line to 8-Line Decoders/Demultiplexers

SN54HCT138, SN74HCT138 SCLS171F * MARCH 1984 * REVISED MARCH 2022 SNx4HCT138 3-Line to 8-Line Decoders/Demultiplexers 1 .
The ’HCT138 devices are designed for highperformance memory-decoding or data-routing applications requiring very short propagation delay times.

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Datasheet Details

Part number:

SN54HCT138

Manufacturer:

Texas Instruments ↗

File Size:

1.77 MB

Description:

3-Line to 8-Line Decoders/Demultiplexers

Features

* Operating voltage range of 4.5 V to 5.5 V
* Outputs can drive up to 10 LSTTL loads
* Low power consumption, 80-µA max ICC
* Typical tpd = 17 ns
* ±4-mA output drive at 5 V
* Low input current of 1 µA max
* Inputs are TTL-Voltage compatible

Applications

* requiring very short propagation delay times. In high-performance memory systems, these decoders can minimize the effects of system decoding. When employed with high-speed memories utilizing a fast enable circuit, the delay times of these decoders and the enable time of the memory usually are less t

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SN54HCT138 3-Line 8-Line Decoders Demultiplexers Texas Instruments

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