74ALVCH16373DGG,11

Overview

The 74ALVCH16373DGG,11 is a 16-bit D-type transparent latch with bus hold inputs and 3-state outputs manufactured by Nexperia. It operates within a supply voltage range of 1.2 V to 3.6 V. The device supports two independent 8-bit latches or a single 16-bit configuration. Propagation delay ranges from 1.0 ns to 5.9 ns depending on voltage. Static current is typically 40 µA at 3.6 V. Output drive capability reaches ±24 mA at 3.0 V.

Feature Summary

• Features bus hold inputs to maintain stable logic levels without external pull-up or pull-down resistors.
• Includes dedicated IOFF circuitry to disable outputs and prevent backflow current during partial power down scenarios.
• Utilizes low inductance multiple VCC and GND pins to minimize noise and ground bounce effects.

Applications

• Partial power down applications requiring safe isolation of powered-down sections
• High-speed data buffering and storage in digital systems
• Bus driver implementations for 16-bit wide data paths

Procurement Notes

Verify the specific ordering suffix matches the required package variant. Confirm RoHS compliance status through official documentation before procurement. Ensure the component meets the intended temperature range specifications for the application environment.

Selection Notes

Select this component when a wide supply voltage range from 1.2 V to 3.6 V is required. Consider the bus hold feature if input state retention is necessary without external components. Verify that the TSSOP48 package fits the available board space constraints.

Part Context

This part belongs to the 74ALVCH series of high-speed CMOS logic devices. It is designed for low power dissipation while maintaining fast switching speeds. The device integrates standard pin-out architecture compatible with existing system designs.

Replacement Considerations

Check for direct cross-references such as SN74ALVCH16373DGGR from Texas Instruments. Verify functional equivalence regarding pinout and electrical characteristics before substitution.

FAQ

How does the IOFF circuitry function?

The IOFF circuitry disables the outputs to prevent potentially damaging backflow current through the device when it is powered down.

What is the purpose of the bus hold inputs?

Bus hold inputs ensure that unused or floating inputs remain at a defined logic level, eliminating the need for external pull-up or pull-down resistors.