Nexperia USA Inc. 74HC151PW,112

Overview

74HC151PW,112 from Nexperia is an 8-input CMOS multiplexer with complementary outputs (Y and Y), three binary select inputs (S0–S2), and active-low enable (E). It operates from 2.0 V to 6.0 V, delivers propagation delay as low as 15 ns at 6.0 V (CL = 50 pF), and supports industrial temperature range (−40 °C to +125 °C). It routes one of eight data inputs (I0–I7) to Y/Y based on select code, used in digital logic routing, address decoding, and signal selection in embedded control systems.

For engineers reviewing the 74HC151PW,112 datasheet, 74HC151PW,112 pinout, 74HC151PW,112 application, or 74HC151PW,112 equivalent, this page provides verified functional identity, TSSOP16 package mapping, confirmed timing specs (tpd, tt), real-world use scenarios, and validated alternative parts - all extracted from Nexperia's official Rev. 11 product data sheet (March 2024).

Technical Context

The 74HC151PW,112 implements a standard 8:1 data selector using CMOS logic with non-inverting data path and complementary outputs. Its enable input (E) forces both outputs to fixed states (Y = LOW, Y = HIGH) when asserted high, enabling cascading or gating of multiplexer stages.

Input clamping diodes allow safe interfacing to voltages exceeding VCC when used with current-limiting resistors. The device complies with JEDEC JESD7A (2.0–6.0 V) and JESD8C (2.7–3.6 V), and meets HBM ESD >2000 V and CDM >1000 V per JS-001/JS-002.

Key Specifications

Pinout & Package

TSSOP16 plastic thin shrink small outline package (SOT403-1), 4.4 mm body width, 0.65 mm lead pitch, 16-pin surface-mount with exposed pad not electrically connected.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-input multiplexer applications.

Compared with 74HC151PW,112, the 74HCT151PW,112 adds TTL input compatibility at the cost of higher leakage, while SN74LV151APWR trades complementary output for lower voltage operation and improved speed - making each suitable only for specific interface or topology constraints.

Availability

74HC151PW,112 is available at Aetrix Electronics and suitable for industrial automation, embedded instrumentation, and test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74HC151PW,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 focused on high-volume, high-reliability logic, analog, and MOSFET solutions, serving automotive, industrial, and consumer markets with ISO/TS 16949-certified manufacturing.

The 74HC151PW,112 belongs to Nexperia's 74HC logic family - designed for robust, low-power digital signal routing in noise-prone environments where consistent timing and wide supply tolerance are critical.

FAQ

Is the 74HC151PW,112 pin-compatible with the 74HCT151PW,112?

Yes - both share identical TSSOP16 pinout (SOT403-1), same pin functions, and mechanical footprint. The only electrical difference is input threshold levels: 74HC151 requires CMOS-compatible inputs (VIH ≥ 4.2 V at VCC = 6.0 V), while 74HCT151 accepts TTL-level inputs (VIH ≥ 2.0 V). No PCB redesign is needed for substitution, but verify source logic family compatibility.

What is the maximum clock frequency supported for reliable multiplexing?

The device has no internal clock; its maximum usable data rate depends on propagation delay and system timing margins. With tpd = 15 ns (max) at VCC = 6.0 V and CL = 50 pF, it supports clean signal selection up to ~33 MHz in synchronous applications where setup/hold times are met. For asynchronous switching, ensure select inputs are stable ≥20 ns before data changes.

Does the 74HC151PW,112 require external pull-up or pull-down resistors on unused inputs?

No - unused select or data inputs may be tied directly to VCC or GND. The device features built-in input clamp diodes and exhibits low input leakage (±1.0 μA max), so floating inputs are not recommended but will not cause latch-up. For best noise immunity in industrial settings, tie unused inputs to defined rails rather than leaving them open.

Can the Y and Y outputs drive a 50 Ω transmission line directly?

No - the outputs are rated for ±4.0 mA at VCC = 4.5 V, insufficient to drive 50 Ω to full rail (requiring ≥100 mA). Use a dedicated line driver (e.g., 74LVC1G17) or series termination (e.g., 47 Ω resistor) for impedance-matched routing. Direct connection causes excessive VOL/VOH deviation and signal distortion beyond 10 cm trace length.