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Texas Instruments 74LS125ADC — Logic ICs

74LS125ADC Bus Driver, 4-Bit, TTL, Active

MPN74LS125ADC
End of Life

74LS125ADC, BUS DRIVER, 4-BIT, TTL, Active lifecycle, RoHS non-compliant, Bulk package.

$0.2Ref. price · indicative, final on quote
RoHSRoHS non-compliant
Series*
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

74LS125ADC specifications
ParameterValue
Series*
PackageBulk

Product details

The 74LS125ADC is a 4-bit bus driver built in low-power Schottky TTL logic, designed to buffer and drive bus lines in digital systems. Each of the four drivers has a three-state output with an active-low enable, making it a straightforward choice for multiplexed data buses, memory address lines, or control signal distribution in 5 V TTL environments.

RoHS non-compliant — what it means for assembly

If your assembly line is RoHS-exempt for certain high-reliability or military applications, this part fits. For standard lead-free reflow profiles, you will need to verify compatibility or plan for a separate assembly run.

No last-time-buy or obsolescence risk is indicated on the record.

Frequently asked questions

What is the difference between 74LS125 and 74LS126?

The 74LS125 has active-low enable inputs (output enabled when the enable pin is low), while the 74LS126 uses active-high enables. Both are 4-bit bus drivers with three-state outputs, but the enable polarity differs, which affects the logic level needed to turn the outputs on.