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Texas Instruments 74AHC1G126DCKRG4 — Interface & Transceivers

74AHC1G126DCKRG4 Buffer, Non-Inverting, 3-State, SC-70-5

MPN74AHC1G126DCKRG4
End of Life

Texas Instruments 74AHC1G126DCKRG4, Series 74AHC, Buffer Non-Inverting, 3-State Output, 1 Element, 1 Bit per Element, 8mA Output Current, 2V to 5.5V Supply, Surface Mount, SC-70-5, -40°C to 125°C.

$5.9700Ref. price · indicative, final on quote
Texas Instruments 74AHC1G126DCKRG4 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

74AHC1G126DCKRG4 specifications
ParameterValue
Series74AHC
Logic typeBuffer, Non-Inverting
Output type3-State
MountingSurface Mount
Supply voltage2V ~ 5.5V
Current - output high, low8mA, 8mA
Operating temperature-40°C~125°C(TA)
PackageTape & Reel (TR); Cut Tape (CT)
Case5-TSSOP, SC-70-5, SOT-353
Number of elements1
Number of bits per element1

Product details

Single buffer with 3-state output for mixed-voltage buses

It operates from a 2V to 5.5V supply, making it suitable for level translation between 3.3V and 5V logic domains. The output can be placed in a high-impedance state via the output-enable pin, allowing multiple buffers to share a common bus line without contention.

Wide temperature range and small footprint

The SC-70-5 package (also known as SOT-353) occupies minimal board area, critical for dense PCB layouts in handheld or sensor-module designs.

Standard lead times apply through authorized distribution. For dual-sourcing flexibility, the pin-compatible 74AHC1G125 (inverting version) shares the same footprint and supply range, though the output logic polarity differs.

Frequently asked questions

Is 74AHC1G126DCKRG4 a direct replacement for 74AHC1G125?

No. The 74AHC1G126 is a non-inverting buffer, while the 74AHC1G125 is an inverting buffer. They share the same pinout and supply range, but the output logic polarity is opposite, so they are not drop-in replacements unless the design accounts for the inversion.