SN74ACT16BQAR

Overview

The SN74ACT16BQAR is a hex Schmitt-trigger inverter manufactured by Texas Instruments, featuring open-drain outputs and TTL-compatible inputs. It operates within a supply voltage range of 4.5V to 5.5V. The device provides continuous output drive of 24mA at 5V, with short-burst capability up to 75mA. Maximum propagation delay is 7.2ns. It functions across an operating temperature range from -40°C to +125°C and utilizes a WQFN-14 package.

Feature Summary

• TTL-compatible Schmitt-trigger inputs provide tolerance for slow and noisy input signals
• Open-drain CMOS outputs enable wired-OR configurations and direct connection to ground discharge nodes
• High current drive capability supports driving 50Ω transmission lines and low-voltage relay coils

Applications

• Control indicator LEDs
• Drive low-voltage relay coils
• Wired-OR logic implementations using open-drain outputs

Procurement Notes

Verify the specific BQA (WQFN) package variant against design requirements. Confirm that the open-drain output architecture aligns with system pull-up needs. Ensure thermal management meets junction temperature limits during high-current operation. Validate ESD handling procedures due to CMOS sensitivity.

Selection Notes

Select this component when TTL-level compatibility is required alongside Schmitt-trigger noise immunity. The open-drain configuration is essential for wired-logic applications or interfacing with different voltage domains via external pull-ups. Verify that the 5V-only supply constraint fits the target power architecture.

Part Context

This device belongs to the SN74ACT family of high-speed CMOS logic. It integrates six independent inverters into a single compact package. The ACT series bridges performance gaps between standard CMOS and older bipolar technologies, offering faster switching speeds while maintaining CMOS power efficiency.

Replacement Considerations

SN74ACT16PW