SN74AHCT08RGYRG4

Overview

The SN74AHCT08RGYRG4 is a quadruple 2-input positive-AND gate from the Texas Instruments SNx4AHCT08 family. It operates within a supply voltage range of 4.5 V to 5.5 V and features TTL-compatible inputs allowing up translation from 3.3 V to 5 V. The device provides low drive outputs with slow rise and fall times to minimize signal ringing. It is housed in a 14-pin VQFN package (3.50 mm × 3.50 mm) and supports an operating temperature range of -40°C to 125°C.

Feature Summary

• TTL-voltage compatible inputs enable direct interfacing between 3.3 V and 5 V logic domains.
• Low-drive CMOS architecture produces slow edge rates to reduce output signal overshoot and undershoot.
• High electrostatic discharge protection ratings ensure robustness against human-body, machine, and charged-device models.

Applications

• Servers
• Network switches
• PCs and notebooks
• Electronic points-of-sale

Procurement Notes

Verify the specific ordering suffix 'G4' corresponds to lead-free and RoHS-compliant manufacturing standards as defined by Texas Instruments. Confirm that the VQFN-14 package dimensions match the target PCB footprint requirements. Ensure static handling precautions are observed during assembly due to the CMOS technology used in this component.

Selection Notes

Select this component when system design requires boolean AND logic with TTL input compatibility at 5 V operation. The slow transition characteristics make it suitable for bus-interface applications where minimizing electromagnetic interference and signal ringing is critical. Verify that the required propagation delay and output current capabilities align with the circuit load conditions.

Part Context

This part belongs to the SNx4AHCT08 series of quadruple 2-input positive-AND gates manufactured by Texas Instruments. The RGYR suffix indicates the 14-pin VQFN surface-mount package variant. The G4 suffix denotes compliance with environmental directives regarding restricted substances. The device utilizes CMOS technology optimized for 5 V power supplies.

Replacement Considerations

SN74AHCT08RGYR

FAQ

How does the device handle unused inputs?

All unused inputs must be connected to either VCC or GND to prevent undefined operational states caused by floating voltages.

What is the function of the slow rise and fall times?

The slow transition times on the outputs are designed to minimize ringing, overshoot, and undershoot on the output signals.