SNJ54ALS1245AFK

$38.89

Description：54ALS1245A OCTAL BUS TRANSCEIVER
Series：*
Mfr：Texas Instruments
Package：Bulk

SKU:19fc310faf3d Category: Buffers, Drivers, Receivers, Transceivers Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：54ALS1245A OCTAL BUS TRANSCEIVER
Series：*
Mfr：Texas Instruments
Package：Bulk
Logic Type：-
Number of Elements：-
Number of Bits per Element：-
Input Type：-
Output Type：-
Current - Output High, Low：-
Voltage - Supply：-
Operating Temperature：-
Mounting Type：-
Package / Case：-
Supplier Device Package：-
Grade：-
Qualification：-

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SNJ54ALS1245AFK

Overview

The SNJ54ALS1245AFK is an octal bus transceiver featuring three-state outputs, designed for asynchronous two-way communication between data buses. It operates within a supply voltage range of 4.5 V to 5.5 V and supports bidirectional data transmission controlled by the DIR input. The device utilizes a 20-pin Leadless Ceramic Chip Carrier (LCCC) package and is characterized for operation over the full military temperature range of -55 °C to 125 °C.

Feature Summary

Bidirectional data transmission capability between A and B buses
Three-state outputs with isolation control via OE input
Low-power ALS technology implementation

Applications

Asynchronous two-way communication between data buses
Military and defense applications requiring extended temperature ranges
High-density system designs utilizing 20-pin packages

Procurement Notes

Verify that the component matches the SNJ54ALS1245AFK designation, specifically confirming the FK package type and military temperature rating. Ensure the supplier provides documentation confirming QML certification or compliance with SN54ALS1245A specifications. Cross-reference part markings against official Texas Instruments packaging addendums to validate authenticity and production status.

Selection Notes

Select this component when military-grade temperature stability (-55 °C to 125 °C) is required for octal bus interfacing. It serves as a low-power alternative to standard ALS series devices while maintaining identical functionality to the ALS1645 series. Consider the LCCC package constraints for high-density mounting requirements in rugged environments.

Part Context

This device belongs to the SN54ALS1245A family, which represents the military-grade version of the octal bus transceiver line. It is functionally identical to the SN74ALS1245A but distinguished by its extended operating temperature range and ceramic packaging options suitable for harsh environments.

Replacement Considerations

SNJ54ALS1245AJ

FAQ

How does the output-enable input affect bus isolation?

When the OE input is held high, the device disables the outputs, effectively isolating the A and B buses from each other regardless of the direction control state.