Nexperia USA Inc. 74HC157D,653

Overview

74HC157D,653 from Nexperia is a quad 2-input CMOS multiplexer in SO16 package, featuring independent data select (S) and active-low enable (E) inputs, non-inverting outputs (1Y–4Y), wide 2.0 V to 6.0 V supply range, and operation from −40 °C to +125 °C. It routes one of two input sources per channel to its output under common control-used in digital logic routing, bus selection, and address/data path switching in microcontroller peripheral interfaces.

For engineers reviewing the 74HC157D,653 datasheet, 74HC157D,653 pinout, 74HC157D,653 application, or 74HC157D,653 equivalent, key selection considerations include propagation delay (10–38 ns at VCC = 4.5–6.0 V), input compatibility (CMOS-level for HC variant), enable-controlled output disable, and SO16 thermal performance (Ptot = 500 mW at ≤110 °C).

Technical Context

This device implements four independent 2:1 multiplexers sharing a single select line (S) and a common active-low enable (E). Each channel passes either the 0-source (nI0) or 1-source (nI1) input to its corresponding output (nY) based on S state, while E overrides all outputs to LOW when asserted.

It uses standard CMOS silicon with input clamp diodes enabling overvoltage-tolerant interfacing via current-limiting resistors, and meets JESD7A (2.0–6.0 V) and JESD8C (2.7–3.6 V) compliance. Static drive strength supports ±4.0 mA at VCC = 4.5 V, with VIH/VIL thresholds scaling with supply voltage.

Key Specifications

Pinout & Package

74HC157D,653 is housed in a plastic small outline package (SO16, SOT109-1) with 16 leads, 3.9 mm body width, and standard 1.27 mm lead pitch. Pin 1 is marked by a notch or index area; the package is RoHS-compliant and rated for reflow soldering per JEDEC J-STD-020.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74HCT157D,653, the HC variant provides tighter VIH/VIL margins at mid-supply voltages and lower dynamic power at 6 V, while SN74LV157APWR delivers faster switching and lower quiescent current but mandates layout revision due to non-identical pinout.

Availability

74HC157D,653 is available at Aetrix Electronics and suitable for industrial automation controllers, test instrumentation signal routing, and embedded microcontroller peripheral expansion requiring stable component supply across extended temperature ranges.

Supply support for 74HC157D,653 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 global semiconductor manufacturer headquartered in Nijmegen, Netherlands, specializing in high-performance logic, analog, and discrete components for industrial, automotive, and consumer markets.

The 74HC157D,653 belongs to Nexperia's industry-standard HC logic family, designed for robust, low-power digital signal routing in space-constrained and thermally demanding embedded systems.

FAQ

Can 74HC157D,653 operate reliably at 2.0 V supply?

Yes. The device is fully specified down to 2.0 V: propagation delay remains ≤125 ns, VIH is guaranteed ≥1.5 V, and VOL stays ≤0.5 V at IO = 4.0 mA. This enables direct integration into battery-powered 2.0–2.5 V systems without voltage boosting.

What happens to outputs when E is HIGH and S toggles?

When E is HIGH (active-low enable disabled), all outputs (1Y–4Y) are forced LOW regardless of S state or input values. Toggling S has no effect on outputs until E is pulled LOW, ensuring predictable bus release behavior in arbitration schemes.

Is there any risk of bus contention when using multiple 74HC157D,653 devices on shared outputs?

No contention occurs if only one device has E = LOW at any time. Since outputs are push-pull (not three-state), connecting multiple 74HC157D,653 outputs directly risks short-circuit current. Use external OR-ing diodes or a dedicated bus transceiver if shared-bus topology is required.

How does input clamping affect interfacing with 12 V sensors?

Clamp diodes allow safe interface to 12 V signals only when series current-limiting resistors restrict IIK to ≤±20 mA (absolute max). For example, a 470 Ω resistor limits current to ~12.8 mA at 12 V - within spec and avoids damage, but requires validation of signal integrity at target data rates.