SN74HCS125DYYR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74HCS125DYYR is a quadruple buffer with 3-state outputs and Schmitt-trigger inputs manufactured by Texas Instruments. It operates within a supply voltage range of 2V to 6V and supports an extended ambient temperature range from -40°C to +125°C. The device features balanced CMOS push-pull outputs capable of ±7.8mA drive current at 6V. Typical supply current is 2µA, with input leakage current typically ±100nA at 6V. Propagation delay ranges from 5ns to 39ns depending on the supply voltage.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Schmitt-trigger inputs provide high tolerance for slow or noisy signals through defined hysteresis thresholds.
• Balanced CMOS push-pull outputs ensure similar sourcing and sinking capabilities for fast signal edges.
• Low power consumption design minimizes static current draw during operation.

Buffers, Drivers, Receivers, Transceivers Applications

• Enabling or disabling digital signals via control logic
• Controlling indicator LEDs with sufficient drive capability
• Switch debounce circuits utilizing input hysteresis
• Signal conditioning to eliminate noise in digital lines

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package type SOT-23-THIN (14) matches the design footprint requirements. Confirm the operating temperature range meets system environmental specifications. Check for any recent Product Change Notifications regarding manufacturing sites or material updates. Ensure ESD handling procedures are followed during assembly due to CMOS sensitivity.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when Schmitt-trigger input noise immunity is required alongside low power consumption. The wide 2V to 6V supply range offers flexibility for various logic families. Consider the SOT-23-THIN package size constraints against available board space. Verify that the 3-state output control logic aligns with system bus management requirements.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74HCS125 family of quadruple buffers. It shares functional similarities with other HC/HCT series buffers but distinguishes itself through Schmitt-trigger inputs and extended temperature ratings. The DYYR suffix indicates the specific SOT-23-THIN packaging and reel quantity configuration.

Buffers, Drivers, Receivers, Transceivers FAQ

How does the Schmitt-trigger architecture affect input signal requirements?

The Schmitt-trigger inputs allow the device to tolerate slow transition times and reject noise without requiring strict input slew rate limitations, unlike standard CMOS inputs.

What happens if unused inputs are left floating?

Unused inputs must be terminated to either VCC or ground to prevent undefined operational states and potential excessive power consumption, even though Schmitt triggers are more tolerant than standard CMOS.