SN74ABT16853DLR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74ABT16853DLR is a dual 8-bit to 9-bit parity bus transceiver utilizing Texas Instruments' EPIC-IIB BiCMOS technology. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an operating temperature range from -40°C to +85°C. The device features high-drive outputs capable of sourcing -32 mA and sinking 64 mA, with typical propagation delays ranging from 1.5 ns to 7.7 ns depending on the signal path. It incorporates distributed VCC and GND pin configurations to minimize switching noise.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Integrated parity generator and checker for data integrity verification
• Latchable error flag storage with clear and sample control inputs
• Flow-through architecture optimized for PCB layout efficiency
• Distributed power and ground pins to reduce high-speed switching noise

Buffers, Drivers, Receivers, Transceivers Applications

• Communication between data buses requiring parity checking
• High-speed memory interface circuits
• Data acquisition systems with error detection requirements

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific DL suffix indicates the plastic shrink small-outline package configuration. Confirm that the component meets the commercial temperature specifications of -40°C to +85°C rather than military grades. Ensure design compliance with absolute maximum ratings regarding input clamp currents and output short-circuit conditions during integration.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when dual independent 8-bit bidirectional transfer with built-in odd/even parity generation is required. The flow-through architecture facilitates efficient board routing compared to wrap-around designs. Consider the high-drive capability for driving multiple loads or longer traces without external buffering.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the Widebus family of logic devices designed by Texas Instruments. It utilizes EPIC-IIB BiCMOS technology to achieve significantly reduced power dissipation while maintaining high-speed performance. The device provides latch-up protection exceeding 500 mA per JEDEC standards.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN54ABT16853 (Military grade variant)

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle inverted parity?

When both OEA and OEB are low, data transfers from A to B and generates inverted parity, which acts as a forced error condition to enhance system diagnostic capabilities.

What is the function of the ERR output?

The open-collector ERR output indicates whether a parity error has occurred in the B data when transmitting from B to A. Its state can be passed, sampled, stored, or cleared via LE and CLR inputs.