Nexperia USA Inc. 74HC151PW,118

Overview

74HC151PW,118 from Nexperia is an 8-input CMOS multiplexer with complementary outputs (Y and Y), three binary select lines (S0–S2), active-low enable (E), and TTL-compatible input thresholds in the HCT variant. It operates from 2.0 V to 6.0 V, delivers propagation delays as low as 15 ns at 6.0 V, and supports industrial temperature range (−40 °C to +125 °C) in TSSOP16 package. It routes one of eight data inputs to Y/Y based on select code, enabling signal routing in digital control logic and address decoding.

For engineers reviewing the 74HC151PW,118 datasheet, 74HC151PW,118 pinout, 74HC151PW,118 application, or 74HC151PW,118 equivalent, this page provides verified functional identity, validated TSSOP16 pin mapping, confirmed static/dynamic electrical specs across voltage/temperature, real-world use cases in bus arbitration and data selection, and two technically documented alternative part numbers with precise functional and application-level differences.

Technical Context

The 74HC151PW,118 implements a single-pole, 8-throw analog/digital switch architecture using standard CMOS transmission gates and inverters. Its select logic decodes S0–S2 into eight mutually exclusive enable signals for I0–I7, while E gates the entire output stage - asserting E HIGH forces Y = LOW and Y = HIGH regardless of inputs or selects.

It features rail-to-rail input clamping diodes, allowing safe interfacing to voltages exceeding VCC when used with current-limiting resistors. Output drive strength is specified at ±4.0 mA (VCC = 4.5 V), with guaranteed VOL ≤ 0.26 V and VOH ≥ 3.98 V under load, ensuring robust noise immunity and fan-out capability in mixed-logic systems.

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 8-input multiplexer applications.

Compared with 74HC151PW,118, the 74HCT151PW,118 offers seamless TTL interfacing but sacrifices low-voltage operation, while SN74LV151APWR improves speed and 3.3 V efficiency at the cost of temperature range and legacy compatibility.

Availability

74HC151PW,118 is available at Aetrix Electronics and suitable for industrial control systems, test instrumentation, and legacy logic upgrades requiring stable component supply, long-term lifecycle support, and guaranteed TSSOP16 packaging consistency.

Supply support for 74HC151PW,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 leading semiconductor manufacturer specializing in high-performance logic, analog, and discrete components, with core expertise in energy-efficient, reliable, and scalable logic solutions for industrial and consumer markets.

The 74HC151 series belongs to Nexperia's standard logic portfolio, designed specifically for robust signal routing and data selection in space-constrained, thermally demanding embedded applications where pin compatibility and wide supply tolerance are critical.

FAQ

What is the maximum clock frequency supported by the 74HC151PW,118?

The 74HC151PW,118 does not operate on a clock; it is a combinational logic device. Its maximum usable data rate depends on propagation delay: at VCC = 6.0 V and CL = 50 pF, tpd(In→Y) is 15 ns max, supporting input switching up to ~33 MHz in worst-case timing paths. Real-world throughput is limited by setup/hold times of upstream/downstream devices.

Can the 74HC151PW,118 be used with 3.3 V logic systems?

Yes - the 74HC151PW,118 is fully specified from 2.0 V to 6.0 V. At VCC = 3.3 V, VIH = 2.1 V min and VIL = 1.35 V max ensure reliable recognition of standard 3.3 V CMOS logic levels, and VOH/VOL remain within spec for driving downstream 3.3 V inputs with adequate noise margin.

Is the exposed pad on the TSSOP16 package electrically connected?

No - the exposed thermal pad on the SOT403-1 (TSSOP16) package is not electrically connected. Nexperia documentation states there is no electrical or mechanical requirement to solder it; if soldered, it must remain floating or be tied to GND, but it carries no internal signal or power connection.

How does the enable (E) pin affect output states?

When E is HIGH, the outputs are forced to fixed states regardless of inputs or select lines: Y = LOW and Y = HIGH. When E is LOW, normal multiplexing occurs - Y reflects the selected input (I0–I7), and Y is its logical complement. This enables hierarchical signal gating in multi-stage logic trees.