SN74AHC1G02DBVRQ1

Overview

The SN74AHC1G02DBVRQ1 is an automotive-grade single 2-input positive-NOR gate from the Texas Instruments SN74AHC1G02-Q1 series. It operates within a supply voltage range of 2 V to 5.5 V and supports an operating free-air temperature range of -40°C to +125°C. The device features low power consumption with a maximum ICC of 10 µA and provides ±8 mA output drive capability at 5 V. Latch-up performance exceeds 250 mA per JESD 17 standards. Propagation delays are specified as 6.5 ns maximum at 5 V with a 50 pF load, and 9.5 ns maximum at 3.3 V with a 50 pF load across the full temperature range.

Feature Summary

• Qualified for automotive applications under AEC-Q100 standards with defined temperature grades and ESD classification levels.
• Provides balanced CMOS push-pull outputs capable of sinking and sourcing similar currents for efficient signal driving.
• Incorporates standard CMOS inputs that require fast transition rates to prevent oscillations and excessive power consumption.

Applications

• Alarm or tamper detect circuits
• S-R latch configurations

Procurement Notes

Verify the specific ordering suffix 'DBVRQ1' corresponds to the SOT-23 (DBV) package format and large tape-and-reel carrier configuration. Confirm that the component meets the required AEC-Q100 qualification grade for the intended automotive environment. Ensure design parameters align with the absolute maximum ratings to prevent permanent damage during operation.

Selection Notes

Select this component when a single NOR logic function is required in space-constrained automotive designs utilizing the SOT-23 footprint. The wide supply voltage compatibility allows for direct interfacing between 3.3-V and 5-V logic domains without additional level shifting circuitry. Consider the propagation delay specifications relative to system timing requirements under varying capacitive loads.

Part Context

This device belongs to the SN74AHC1G02-Q1 family of automotive logic gates manufactured by Texas Instruments. The family utilizes advanced CMOS technology to achieve high-speed performance while maintaining low static power dissipation. The Q1 designation indicates compliance with automotive reliability standards, distinguishing it from commercial-grade counterparts in the broader SN74AHC series portfolio.

Replacement Considerations

SN74AHC1G02DBVRQ1.A

FAQ

How should unused inputs be handled on this device?

Unused inputs must not be left floating. They should be terminated directly to VCC or ground, or connected via a pull-up or pull-down resistor to ensure valid input voltage states and prevent oscillations.

What is the recommended bypass capacitor value for power supply stability?

A 0.1-µF capacitor is recommended for each VCC terminal. It should be placed physically close to the device to prevent power disturbances and reject noise effectively.