74AHCT1G126SE-7

Buffers, Drivers, Receivers, Transceivers Overview

The 74AHCT1G126SE-7 is a single non-inverting buffer with a 3-state output, designed for operation within a power supply range of 4.5V to 5.5V. It features Schmitt trigger action at all inputs and provides ±8 mA output drive at 5.0V. The device operates across an ambient temperature range of -40°C to +125°C. Propagation delay (tpd) from input A to output Y ranges from 0.6 ns to 9.5 ns depending on load capacitance and temperature. Supply current (ICC) is typically 1 µA at 25°C and up to 40 µA at maximum operating temperatures.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Single non-inverting buffer with 3-state output that enters high impedance when the OE pin is LOW
• Schmitt trigger action at all inputs to tolerate slower input rise and fall times
• ESD protection exceeding 200-V Machine Model, 2000-V Human Body Model, and 1000-V Charged Device Model
• Latch-up performance exceeds 100 mA per JESD 78, Class II

Buffers, Drivers, Receivers, Transceivers Applications

• General purpose logic circuits
• PCs, networking equipment, notebooks, netbooks, and PDAs
• Computer peripherals, hard drives, and CD/DVD ROM drives
• TV, DVD, DVR, set-top boxes, phones, and GPS devices
• MP3 players, cameras, and video recorders

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package suffix 'SE' corresponds to the SOT353 configuration required for your PCB layout. Confirm the '-7' suffix indicates tape and reel packaging containing 3000 units per reel. Ensure the design accommodates the 4.5V to 5.5V operating voltage range and verify thermal resistance values if operating near the upper temperature limits.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when a single-channel, non-inverting buffer with 3-state control is needed in a compact SOT353 footprint. The AHCT family ensures TTL-compatible input levels while maintaining CMOS low power consumption. Consider the propagation delay specifications under your specific load capacitance conditions to ensure signal integrity meets system timing requirements.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74AHCT logic series, which combines the speed of Advanced High-speed CMOS technology with TTL-compatible input thresholds. The '1G' designation indicates a single gate implementation, and the '126' function code specifies a non-inverting buffer with 3-state outputs. Diodes Incorporated manufactures this device using lead-free finish and RoHS-compliant processes.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The 74AHCT1G126W5-7 serves as a direct functional substitute utilizing the SOT25 package instead of SOT353. Both variants share identical electrical characteristics and pinout assignments. Verify physical footprint compatibility before swapping between the SE and W5 package codes.

Buffers, Drivers, Receivers, Transceivers FAQ

How does the Output Enable (OE) pin affect the output state?

When the OE pin is driven HIGH, the buffer functions normally based on the input A. When OE is driven LOW, the output Y enters a high impedance state regardless of the input level.

What are the ESD protection ratings for this device?

The device exceeds 200 V for the Machine Model (A115-A), 2000 V for the Human Body Model (A114-A), and 1000 V for the Charged Device Model (C101C).