74ALVC162601T

Overview

The 74ALVC162601T is an 18-bit universal bus transceiver manufactured by Fairchild Semiconductor, housed in a 56-lead Thin Shrink Small Outline Package (TSSOP). It operates on a supply voltage range of 1.65V to 3.6V and features inputs and outputs tolerant up to 3.6V. The device integrates D-type latches and flip-flops for transparent, latched, and clocked data modes. Propagation delay ranges from 4.3 ns at 3.0V–3.6V to 9.2 ns at 1.65V–1.95V. Quiescent supply current is 40 µA, with high-level output currents reaching -24 mA on the A-port.

Feature Summary

• Integrates patented noise and EMI reduction circuitry to minimize signal interference.
• Includes 26Ω series resistors within B-port outputs to reduce line noise.
• Supports live insertion and withdrawal operations via power-down high impedance states.
• Provides configurable data flow through transparent, latched, and clocked operational modes.

Applications

• Memory address drivers
• Clock drivers
• Bus transceivers and transmitters

Procurement Notes

Verify component authenticity as this part was originally manufactured by Fairchild Semiconductor prior to corporate restructuring. Confirm package integrity and pin alignment against the MTD56 TSSOP specifications. Ensure control inputs are properly biased during power-up to maintain high-impedance states. Validate that the specific revision matches the DS500676 datasheet requirements for your operating voltage.

Selection Notes

Select this component when designing systems requiring 18-bit bidirectional data transfer with integrated noise suppression. It is suitable for low-voltage logic environments ranging from 1.65V to 3.6V. Consider its 3.6V tolerance for interfacing with slightly higher voltage domains without additional level shifting. Evaluate the 26Ω series resistance impact on signal integrity for your specific trace lengths and load conditions.

Part Context

This device belongs to the ALVC logic family, characterized by low voltage operation and high speed. Originally released by Fairchild Semiconductor, it serves as a universal bus transceiver combining latch and flip-flop functionalities. The TSSOP-56 package provides a compact footprint for dense PCB layouts while maintaining thermal performance suitable for industrial temperature ranges.

Replacement Considerations

The SN74ALVC162601GR from Texas Instruments offers similar functionality but utilizes a 56-TSSOP package. Verify pin compatibility and electrical characteristics before substitution. Note that the 74ALVCH162601 variant lacks the internal series resistors found in the 74ALVC162601.