SN74AHC1G32QDBVRQ1

Overview

The SN74AHC1G32QDBVRQ1 is an automotive-grade single 2-input positive-OR gate from Texas Instruments. It operates within a supply voltage range of 2V to 5.5V and supports temperatures from -40°C to +125°C. The device features a maximum propagation delay of 6.5ns at 5V, low power consumption with a maximum ICC of 10μA, and ±8mA output drive capability. It includes latch-up performance exceeding 250mA per JESD 17 and is housed in a DBV (SOT-23) package.

Feature Summary

• AEC-Q100 qualified for automotive applications with temperature grade 1 support
• Standard CMOS inputs requiring termination to prevent undefined operational states
• Balanced CMOS push-pull outputs capable of sinking and sourcing similar currents

Applications

• Enable or disable digital signals
• Controlling indicator LEDs
• Combining multiple overheat signals into a single active-high enable signal

Procurement Notes

Verify the specific ordering suffix to confirm the package type and operating temperature range. Ensure the component matches the required AEC-Q100 qualification level for automotive integration. Confirm that the selected variant aligns with the system's thermal and electrical design constraints before finalizing procurement.

Selection Notes

Select this component when a compact, automotive-certified OR gate is required for logic combining tasks. Consider the SOT-23 package for space-constrained designs. Evaluate the 2V to 5.5V operating range against the target system voltage. Verify that the input transition rates meet the specified limits to avoid excessive power consumption.

Part Context

This part belongs to the SN74AHC1G32-Q1 family of automotive single-function gates. It provides a Boolean function Y = A + B in positive logic. The Q1 suffix indicates automotive qualification, while the DBVR suffix specifies the SOT-23 tape-and-reel packaging configuration.

Replacement Considerations

SN74AHC1G32QDCKRQ1

FAQ

How should unused inputs be handled?

Unused inputs must not be left floating. They should be terminated at VCC or GND using a pull-up or pull-down resistor, typically 10kΩ, to ensure proper operation.

What is the recommended decoupling capacitor value?

A 0.1-μF bypass capacitor is recommended for the VCC terminal. It should be placed physically close to the device to prevent power disturbances.