# SN74AS138 - Texas Instruments Decoder/Demultiplexer

## Product Summary

The Texas Instruments SN74AS138 is a 3-Line to 8-Line Decoder/Demultiplexer utilizing AS technology. It operates within a temperature range of 0°C to 70°C.

## Product Information

| Field | Value |
| --- | --- |
| Part Number | SN74AS138 |
| Manufacturer | Texas Instruments |
| Product Type | Decoder/Demultiplexer |
| Category | Uncategorized |
| Subcategory | 3-Line to 8-Line Decoders/Demultiplexers |
| Mounting Type | Through Hole |

## Description

The SN74AS138 from Texas Instruments is a high-performance 3-line to 8-line decoder/demultiplexer designed for applications requiring fast decoding and data routing. It belongs to the AS technology family and is suitable for high-speed memory decoding or data transmission systems.

This device features three enable inputs, simplifying cascading and data reception without the need for external inverters. The conditions at the binary-select inputs (A, B, and C) and the three enable inputs determine which of the eight output lines is selected. One enable input can also function as a data input for demultiplexing tasks.

The SN74AS138 operates within a temperature range of 0°C to 70°C and has a maximum supply current of 20000µA. It is available in PDIP, SOIC, and SOP package types, all of which are through-hole mounted.

Designed for applications where minimizing system decoding effects and propagation delay times is crucial, the SN74AS138 ensures that decoder delays are less than the typical access time of high-speed memories, making the system decoder's contribution negligible.

## Availability and Pricing

| Field | Value |
| --- | --- |
| Stock Status | In Stock |
| Distributor Count | 1 |
| Total Stock | 77 |
| Pricing Available | No |

## Distributor Offers

| Distributor | Stock | Unit Price | MOQ | Lead Time | Last Updated |
| --- | --- | --- | --- | --- | --- |
| PROSOFT ELECTRONICS | 77 |  |  |  |  |

## Features

- 3-line to 8-line decoder/demultiplexer
- AS technology family
- Operates from 0°C to 70°C
- Three enable inputs simplify cascading
- Available in PDIP, SOIC, and SOP packages

## Applications

- High-speed memory decoding
- Data routing applications
- System decoding minimization
- Demultiplexing tasks

## Compliance

| Field | Value |
| --- | --- |
| RoHS Status | RoHS3 Compliant |
| REACH Status | REACH Unaffected |
| Moisture Sensitivity Level | 1 Unlimited |

## Documents and Media

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- Product Page: https://distyparts.com/product/sn74as138
- RFQ URL: https://distyparts.com/product/sn74as138#rfq

## FAQs

### What is the operating temperature range for the SN74AS138?

The operating temperature range is 0°C to 70°C.

### What technology family does the SN74AS138 belong to?

The SN74AS138 belongs to the AS technology family.

### What is the maximum supply current for the SN74AS138?

The maximum supply current is 20000µA.

### What package types are available for the SN74AS138?

The SN74AS138 is available in PDIP, SOIC, and SOP package types.

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