SN74ALS29854DWR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74ALS29854DWR is an 8-bit to 9-bit parity bus transceiver manufactured by Texas Instruments in the ALS logic family. It operates within a supply voltage range of 4.75 V to 5.25 V and supports bidirectional data transfer between two buses. The device features independent output-enable controls (OEA, OEB) for isolating buses. It includes a parity generator/checker that produces an odd PARITY output and monitors I/O ports with an open-collector ERR flag. The component is housed in a 24-pin SOIC (DW) package and is characterized for operation from 0°C to 70°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Generates odd parity during A-to-B transmission and checks parity during B-to-A transmission
• Provides an open-collector error-flag output (ERR) with latch functionality
• Supports isolated bus communication via independent output-enable inputs

Buffers, Drivers, Receivers, Transceivers Applications

• Two-way communication systems requiring parity verification
• Bus architectures needing error detection capabilities
• Data storage interfaces utilizing parity checking

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix 'DWR' corresponds to the tape-and-reel packaging format containing 2000 units per reel. Confirm the device status is listed as ACTIVE for new designs. Ensure the operating temperature range meets the application requirements of 0°C to 70°C. Check for RoHS compliance and lead finish specifications in the latest manufacturer documentation.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems that require integrated parity generation and error flagging alongside standard bus transceiving functions. The ALS series offers high-speed performance suitable for demanding digital applications. Consider the 24-pin SOIC package dimensions and pinout compatibility with existing board layouts. Evaluate the need for the specific latch and clear control inputs for error management.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74ALS29854 family of parity bus transceivers. It is functionally similar to AMD's AM29854. The device integrates both data transfer and parity checking into a single IC, simplifying system design by reducing component count compared to using separate transceivers and parity generators.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Functionally similar parts include AMD's AM29854. Verify pinout compatibility and electrical characteristics before substitution.