74AVCB164245GRE4

Overview

The SN74AVCB164245GRE4 is a dual-supply bus transceiver from the Texas Instruments AVC logic series. It features two independent 8-bit channels, providing 16 bidirectional data paths in a 48-pin TSSOP package. The device supports configurable voltage translation between VCCA (1.4V to 3.6V) and VCCB (1.4V to 3.6V). Key electrical parameters include a maximum propagation delay of 3.1 ns at 30 pF load, with output drive capabilities of -12 mA high and 12 mA low. It operates within a temperature range of -40 °C to +85 °C.

Feature Summary

• Configurable voltage translation allows flexible interfacing between different supply voltage domains without external level shifters.
• Dual-supply architecture enables independent power management for source and destination buses.
• Common control design simplifies system integration by managing direction and enable functions through unified signals.

Applications

• High-density memory bus interfaces requiring voltage domain isolation
• Portable computing systems utilizing multiple power rails
• Industrial communication gateways connecting disparate logic families

Procurement Notes

Verify the specific suffix 'E4' confirms lead-free and RoHS compliance status as per manufacturer documentation. Confirm the 48-TSSOP package dimensions match PCB footprint requirements. Ensure operating voltage ranges align with target system supplies before finalizing procurement specifications.

Selection Notes

Select this component when bidirectional data transfer requires dynamic voltage translation between two distinct power domains. The AVC series offers superior speed compared to standard ALVC counterparts. Verify that the 48-pin form factor fits the available board space and that the 3-state outputs meet the bus loading requirements of the application.

Part Context

This part belongs to the Texas Instruments AVC family of advanced low-voltage CMOS logic devices. These components are engineered for high-speed applications requiring efficient power consumption. The AVC series typically bridges the performance gap between older LVC technologies and newer high-speed standards, focusing on dense packaging and versatile voltage compatibility.

Replacement Considerations

SN74AVCB164245GR serves as a non-RoHS equivalent variant within the same functional family. Both parts share identical pinouts and logical operations, differing primarily in environmental compliance certifications and manufacturing lot specifications.