SN74ALVTH16244GR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74ALVTH16244GR is a 16-bit buffer and line driver manufactured by Texas Instruments, utilizing Advanced BiCMOS Technology (ABT) for 3.3-V operation with low static-power dissipation. It features 3-state outputs and supports mixed-mode signal operation, allowing 5-V input and output voltages while operating at 3.3-V VCC. The device accommodates unregulated battery operation down to 2.3 V and includes active bus-hold circuitry on data inputs to eliminate the need for external pullup or pulldown resistors. Packaged in a TSSOP-48 format, it provides high drive capability of -32 mA/64 mA.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports mixed-mode signal operation with 5-V I/O compatibility
• Active bus-hold circuitry eliminates the need for external pullup/pulldown resistors
• Ioff and power-up 3-state support hot-insertion applications
• High drive capability designed for demanding load conditions

Buffers, Drivers, Receivers, Transceivers Applications

• Mixed-mode signal environments requiring 5-V interface to 3.3-V systems
• Hot-insertion applications utilizing Ioff and power-up 3-state features
• Unregulated battery operation supporting voltages down to 2.3 V

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix GR corresponds to the TSSOP package configuration required for your design. Confirm that the component status aligns with long-term availability needs, as legacy logic families may undergo lifecycle changes. Ensure all unused control inputs are tied to VCC or GND during implementation to maintain proper device operation and prevent undefined states.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems that require buffering between 5-V and 3.3-V logic domains without level shifters. The ABT technology offers lower power consumption compared to standard CMOS alternatives. Consider the thermal impedance characteristics of the TSSOP package if operating near maximum temperature limits or under heavy continuous loads.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the Widebus family of 16-bit buffers/drivers from Texas Instruments. It is part of the ALVTH series, which specifically targets 3.3-V applications with TTL-compatible inputs. The device serves as a critical interface element in digital systems where signal integrity and voltage translation between different logic families are necessary.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74ALVTH16244DLG4

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle floating inputs?

The SN74ALVTH16244GR incorporates active bus-hold circuitry on its data inputs. This feature holds unused or floating inputs at a valid logic level, removing the requirement for external pullup or pulldown resistors.

What is the purpose of the Ioff circuitry?

The Ioff circuitry disables the outputs when the device is powered down. This prevents damaging current backflow through the device when it is not energized, making it suitable for hot-insertion applications.