Nexperia USA Inc. 74HC157PW,118

Overview

74HC157PW,118 from Nexperia is a quad 2-input CMOS multiplexer in TSSOP16 package, operating from 2.0 V to 6.0 V supply, with active-low enable (E), common select (S), and non-inverting data path. It delivers propagation delays as low as 10 ns at VCC = 6.0 V and supports industrial temperature range (–40 °C to +125 °C), used for signal routing in digital logic control systems, data acquisition front-ends, and bus interface arbitration.

For engineers reviewing the 74HC157PW,118 datasheet, 74HC157PW,118 pinout, 74HC157PW,118 application, or 74HC157PW,118 equivalent, key selection criteria include supply voltage compatibility (2.0–6.0 V), enable polarity (active LOW), output drive strength (±4 mA at 4.5 V), propagation delay vs. VCC, and TSSOP16 thermal performance under sustained switching loads.

Technical Context

The 74HC157PW,118 implements four independent 2:1 multiplexers sharing one common select (S) and one active-low enable (E) input. Each channel routes either I0 or I1 to its corresponding Y output based on S state, with E overriding all outputs to LOW when HIGH. Inputs feature clamp diodes enabling safe interfacing to voltages exceeding VCC via current-limiting resistors.

It uses standard HC CMOS logic levels (VIH ≥ 3.15 V at VCC = 4.5 V; VIL ≤ 1.35 V), exhibits 3.5 pF typical input capacitance, and maintains static output drive capability of VOH ≥ 3.98 V and VOL ≤ 0.26 V at IO = ±4 mA and VCC = 4.5 V across –40 °C to +125 °C.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad 2-input multiplexer applications.

Compared with 74HC157PW,118, the 74HCT157PW,118 offers guaranteed TTL input compatibility at 5 V but sacrifices noise margin below 4.5 V; SN74LV157APW trades speed for sub-microwatt static power, making it viable only where propagation delay >15 ns is acceptable.

Availability

74HC157PW,118 is available at Aetrix Electronics and suitable for industrial automation controllers, automotive body electronics, test instrumentation, and medical device logic subsystems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74HC157PW,118 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 for automotive, industrial, and consumer markets.

The 74HC157PW,118 belongs to Nexperia's industry-standard 74HC logic family, designed for robust, drop-in replacement of legacy TTL and earlier CMOS multiplexers in cost-sensitive, thermally demanding applications.

FAQ

Can 74HC157PW,118 operate reliably at 3.3 V supply?

Yes. The 74HC157PW,118 is fully specified from 2.0 V to 6.0 V, with VIH = 2.1 V (min) and VIL = 1.35 V (max) at VCC = 4.5 V, and guaranteed functionality down to 2.0 V. At 3.3 V, VOH ≥ 2.9 V and VOL ≤ 0.3 V under 4 mA load, meeting 3.3 V LVTTL and most 3.3 V MCU I/O thresholds.

What is the maximum clock/data rate supported by this multiplexer?

The device does not have an internal clock; its maximum usable data rate depends on propagation delay and system timing margins. With tpd = 13 ns (typ) at VCC = 4.5 V and CL = 50 pF, it supports clean signal routing up to ~30 MHz for single-cycle selection, assuming adequate setup/hold time relative to control edges.

Is the exposed pad on the TSSOP16 package electrically connected?

No. Per Nexperia SOT403-1 package documentation, the exposed pad is a thermal enhancement feature with no electrical function. It may remain floating or be connected to GND for improved heat dissipation, but soldering is optional and imposes no electrical requirement.

How does the enable (E) pin interact with the select (S) input?

E is asynchronous and dominant: when E = HIGH, all four Y outputs are forced LOW regardless of S state or input values. When E = LOW, normal multiplexer operation resumes - S then determines whether I0 or I1 is passed to each Y output. This allows hardware-level channel blanking independent of data path control.