SN74ABT162501DLR

Universal Bus Functions Overview

The SN74ABT162501DLR is an 18-bit universal bus transceiver utilizing state-of-the-art EPIC-II BiCMOS technology. It features 3-state outputs and operates within a supply voltage range of 4.5 V to 5.5 V. The device supports data flow in transparent, latched, or clocked modes via D-type latches and flip-flops. Typical propagation delay is 4.8 ns at VCC = 5 V with CL = 50 pF. It includes equivalent 25-Ω series resistors on B-port outputs and maintains high-impedance states during power-up/down.

Universal Bus Functions Feature Summary

• Combines D-type latches and flip-flops for flexible transparent, latched, or clocked operation
• B-port outputs include integrated 25-ohm series resistors to minimize signal overshoot and undershoot
• Ensures high-impedance output states automatically during power-up and power-down sequences
• Flow-through architecture optimizes printed circuit board layout efficiency

Universal Bus Functions Applications

• High-speed parallel data bus buffering
• Memory-to-memory data transfers
• Microprocessor-based system interconnects

Universal Bus Functions Procurement Notes

Verify the specific package marking and manufacturer date code upon receipt to confirm authenticity. Ensure that all unused inputs are tied to VCC or GND to maintain proper logic levels. Confirm compliance with RoHS directives if required by your manufacturing standards. Review the latest datasheet revision for any updates to recommended operating conditions before finalizing the design.

Universal Bus Functions Selection Notes

Select this component when designing systems requiring wide-bus width with versatile storage control options. The inclusion of internal series resistors simplifies B-port interface design by reducing external component count. Consider the SSOP-56 package constraints regarding thermal dissipation and pin pitch during PCB footprint creation. Verify that the 4.5 V to 5.5 V supply range aligns with the target system's power distribution network.

Universal Bus Functions Part Context

This device belongs to Texas Instruments' Widebus family of universal bus transceivers. It utilizes EPIC-II BiCMOS technology to achieve high speed while significantly reducing power dissipation compared to older bipolar technologies. The SN74ABT162501 complements other members of the ABT logic family designed for high-performance digital applications.

Universal Bus Functions Replacement Considerations

SN74ABT162501DGGRE4 (Thin Shrink Small-Outline Package)

Universal Bus Functions FAQ

How does the device handle data flow direction?

Data flow in each direction is controlled by separate output-enable, latch-enable, and clock inputs, allowing independent configuration for A-to-B and B-to-A transfers.

What is the function of the B-port series resistors?

The B-port outputs contain equivalent 25-ohm series resistors designed to reduce signal overshoot and undershoot without requiring external components.