SN74F138 - TI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

SN74F138
Manufacturer

TI
ChipWorker Part#

CW392890303
RoHS

Lead free / RoHS Compliant
Description

3-line to 8-line decoder / demultiplexer
Documentation

Datasheet

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SN74F138 Specifications

Attribute	Attribute Value

Part Number	SN74F138
Manufacturer	TI
ChipWorker Part#	CW392890303
Documentation	Datasheet
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RoHS	RoHS Compliant
Lead-Free Status	Lead Free

Product Description

The ´F138 is designed to be used in high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders can be used to minimize the effects of system decoding. When employed with high-speed memories utilizing a fast enable circuit, the delay times of this decoder and the enable time of the memory are usually less than the typical access time of the memory. This means that the effective system delay introduced by the decoder is negligible.
The conditions at the binary-select inputs and the three enable inputs select one of eight output lines. Two active-low and one active-high enable inputs reduce the need for external gates or inverters when expanding. A 24-line decoder can be implemented without external inverters and a 32-line decoder requires only one inverter. An enable input can be used as a data input for demultiplexing applications.
The SN54F138 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74F138 is characterized for operation from 0°C to 70°C.
Designed Specifically for High-Speed Memory Decoders and Data Transmission Systems
Incorporates Three Enable Inputs to Simplify Cascading and/or Data Reception
Package Options Include Plastic Small-Outline Packages, Ceramic Chip Carriers, and Standard Plastic and Ceramic 300-mil DIPs

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