SN74AC16BQAR

Overview

The SN74AC16 is a hex inverter with Schmitt-trigger inputs and open-drain outputs. It operates within a supply voltage range of 1.5V to 6V. The device provides continuous output drive current of 24mA at 5V, supporting up to 75mA in short bursts. Propagation delay is specified as a maximum of 7.7ns at 5V with a 50pF load. Inputs feature positive and negative clamp diodes for protection against inductive loads.

Feature Summary

• Hex inverter architecture with Schmitt-trigger inputs
• Open-drain CMOS outputs
• Wide operating voltage range from 1.5V to 6V
• Integrated input and output clamp diodes

Applications

• Control indicator LEDs
• Drive low-voltage relay coils
• Wired-OR logic configurations

Procurement Notes

Verify the specific package variant (PW or BQA) required for your design, as the SN74AC16 family includes different physical footprints. Confirm that the open-drain output topology aligns with your system's pull-up requirements. Ensure the selected component meets the thermal and electrical limits defined in the official datasheet for your intended operating temperature range.

Selection Notes

Select this component when high-speed inversion with noise immunity is required. The Schmitt-trigger inputs provide hysteresis suitable for slow or noisy signals. The open-drain outputs allow for flexible voltage level shifting and wired-logic connections. Verify that the external circuitry can handle the high-drive capability without exceeding absolute maximum ratings.

Part Context

This part belongs to the Texas Instruments SN74AC series of advanced CMOS logic devices. It is designed for high-speed applications requiring robust signal integrity. The inclusion of Schmitt triggers distinguishes it from standard inverters by offering improved noise rejection capabilities for challenging signal environments.

Replacement Considerations

Check for SN74AC16 variants with different packaging options such as PW or BQA. Ensure any substitute maintains the open-drain output configuration and Schmitt-trigger input characteristics to preserve functional compatibility.