Nexperia USA Inc. 74LVC157AD,112

Overview

74LVC157AD,112 from Nexperia is a quad 2-input CMOS multiplexer in SO16 package, featuring independent data select (S) and active-HIGH enable (E), 1.2 V to 3.6 V supply operation, Schmitt-trigger inputs for noise immunity, and mixed-voltage translation capability (3.3 V/5 V interface). It routes four parallel data pairs (1I0/1I1–4I0/4I1) to corresponding outputs (1Y–4Y) in industrial control logic and bus selection circuits.

For engineers reviewing the 74LVC157AD,112 datasheet, 74LVC157AD,112 pinout, 74LVC157AD,112 application, or 74LVC157AD,112 equivalent, this page delivers verified functional behavior, SO16 pin mapping, voltage translation limits, propagation delay specs across VCC ranges, and real-world use cases in level-shifting and signal routing designs.

Technical Context

The 74LVC157AD implements four independent 2:1 multiplexers sharing one common select (S) and one global enable (E) input. Each channel selects between two digital inputs (nI0 or nI1) based on S state, with E overriding all outputs to LOW when HIGH. All inputs tolerate up to 5.5 V regardless of VCC, enabling bidirectional level translation between 3.3 V and 5 V domains.

Schmitt-trigger action at all inputs ensures robust operation with slow-rising signals, while dynamic performance is characterized across -40 °C to +125 °C and VCC = 1.2 V–3.6 V. Propagation delays range from 1.0 ns (min) to 8.0 ns (max) depending on supply voltage and temperature, with output skew ≤1.5 ns between channels.

Key Specifications

Pinout & Package

74LVC157AD,112 uses the SO16 (SOT109-1) plastic small outline package: 16-pin, 3.9 mm body width, 1.27 mm lead pitch, gull-wing leads, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC157APWR, the 74LVC157AD,112 offers superior thermal performance and legacy footprint compatibility; compared with 74AUP1G157GW,125, it delivers true quad integration, faster timing, and broader voltage flexibility - making it optimal for industrial-grade signal routing where reliability and layout continuity matter.

Availability

74LVC157AD,112 is available at Aetrix Electronics and suitable for industrial automation, embedded test instrumentation, and mixed-voltage interface design requiring stable component supply, long-term obsolescence management, and guaranteed SO16 packaging consistency.

Supply support for 74LVC157AD,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 essential efficiency technologies, delivering high-performance logic, discrete, and MOSFET solutions optimized for automotive, industrial, and consumer applications.

The 74LVC157A series belongs to Nexperia's advanced LVC logic family, engineered specifically for robust mixed-voltage system interfacing, low-power operation across extended temperature ranges, and drop-in replacement capability in legacy 74-series designs.

FAQ

Can 74LVC157AD,112 operate with VCC = 1.2 V while accepting 5 V inputs?

Yes. The device supports VCC as low as 1.2 V and tolerates input voltages up to 5.5 V on all pins, enabling reliable level translation from 5 V sources into 1.2 V–3.6 V logic domains without external components. This is confirmed in Table 4 (Limiting Values) and Table 5 (Recommended Operating Conditions) of the official Nexperia datasheet Rev. 13.

What is the maximum clock/data rate supported by 74LVC157AD,112?

The device does not specify a maximum clock frequency, but its propagation delay (tpd) is 1.0–8.0 ns across VCC and temperature. At 3.3 V and 25 °C, typical tpd is 2.5 ns, supporting data rates up to ~200 MHz for clean edge-aligned signals. Real-world throughput depends on load capacitance, drive strength, and signal integrity - verified per Figure 5 and Table 7 in the datasheet.

Is the enable input (pin 15) active-HIGH or active-LOW?

Pin 15 (E) is an active-HIGH enable input. When E = HIGH, all outputs (1Y–4Y) are forced LOW regardless of S or input states. When E = LOW, normal multiplexer operation resumes. This behavior is defined in Section 1 (General description), Table 3 (Function table), and Figure 4 (Logic diagram) of the Nexperia datasheet.

Does 74LVC157AD,112 support hot insertion or live swapping in backplane applications?

No. While inputs are overvoltage-tolerant, the device lacks Ioff (power-off protection) or live-insertion features. Driving inputs while VCC is unpowered may cause latch-up or excessive current flow through internal clamps. For hot-swap applications, external isolation (e.g., series resistors or dedicated hot-swap ICs) is required - as noted in Nexperia's application guidance for LVC-family devices.