Nexperia USA Inc. 74ALVC125PW,112

Overview

74ALVC125PW,112 from Nexperia is a quad non-inverting 3-state buffer/line driver in TSSOP14 package, operating from 1.65 V to 3.6 V supply, featuring Schmitt-trigger inputs for noise immunity, IOFF partial power-down protection, and guaranteed operation from –40 °C to +125 °C. It drives bidirectional buses in low-voltage digital systems such as industrial controllers and FPGA I/O expansion.

For engineers reviewing the 74ALVC125PW,112 datasheet, 74ALVC125PW,112 pinout, 74ALVC125PW,112 application, or 74ALVC125PW,112 equivalent, key selection criteria include propagation delay (≤3.2 ns at 3.3 V), 3-state enable timing (ten ≤4.0 ns), overvoltage-tolerant inputs (to 3.6 V), and compatibility with TTL-level signals.

Technical Context

The device implements four independent non-inverting buffers, each with active-low 3-state output enable (nOE). Each channel accepts inputs tolerant up to 3.6 V regardless of VCC, enabling mixed-voltage interfacing. Schmitt-trigger input thresholds provide hysteresis (≈0.3×VCC) for robust handling of slow-rising signals.

IOFF circuitry actively disables outputs when VCC = 0 V, blocking backflow current during partial power-down-critical for hot-swap and power-gated subsystems. All static and dynamic parameters are fully characterized across –40 °C to +125 °C at VCC = 1.65 V–3.6 V per JEDEC JESD8-7/8-5/36 standards.

Key Specifications

Pinout & Package

TSSOP14 (SOT402-1) package: plastic thin shrink small outline, 14 leads, 4.4 mm body width, 0.65 mm lead pitch, exposed pad optional (non-soldered or GND-connected).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad 3-state buffer applications.

Compared with SN74LVC125APW, the 74ALVC125PW,112 adds IOFF and +125 °C qualification-critical for thermal-stressed environments-while the 74LVC125AD,112 offers identical electrical performance in a larger, more solder-reflow-tolerant SO14 package.

Availability

74ALVC125PW,112 is available at Aetrix Electronics and suitable for industrial PLC backplanes, FPGA I/O expansion hubs, automated test equipment signal conditioning, and medical diagnostic data acquisition buses requiring stable component supply across extended temperature ranges.

Supply support for 74ALVC125PW,112 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Nexperia is a global semiconductor expert delivering high-performance logic, analog, and MOSFET solutions optimized for efficiency, reliability, and miniaturization in industrial, computing, and consumer electronics.

The ALVC (Advanced Low-Voltage CMOS) product line delivers high-speed, low-power, wide-supply logic devices with enhanced robustness-including IOFF, overvoltage tolerance, and extended temperature operation-for demanding embedded control and interface applications.

FAQ

What is the maximum clock frequency supported by the 74ALVC125PW,112?

The 74ALVC125PW,112 is not a clocked device-it has no internal clock and operates asynchronously. Its usable data rate depends on propagation delay (≤3.2 ns at 3.3 V) and system setup/hold timing. For clean edge transmission, it reliably supports data rates up to ~300 Mbps in point-to-point configurations with proper termination and layout.

Can the 74ALVC125PW,112 be used to interface 5 V logic signals?

No-the absolute maximum input voltage is +4.6 V, but the datasheet specifies overvoltage tolerance only up to 3.6 V. Driving it with sustained 5 V inputs exceeds recommended operating conditions and risks latch-up or accelerated wear. Use a dedicated level translator (e.g., TXB0104) for 5 V to 3.3 V interfacing.

Is the exposed thermal pad on the TSSOP14 package electrically connected?

No-the TSSOP14 (SOT402-1) package for 74ALVC125PW,112 does not include an exposed thermal pad. The package outline confirms a standard leaded construction with no thermal land or internal die attach pad. Thermal dissipation relies solely on leads and plastic body conduction.

Does the 74ALVC125PW,112 support hot-swap insertion?

Yes-its IOFF circuitry actively disables outputs when VCC = 0 V, preventing back-current flow during live insertion. Combined with overvoltage-tolerant inputs and ±2000 V HBM ESD rating, it meets baseline requirements for controlled hot-swap in industrial backplanes, provided system-level current limiting and sequencing are implemented.