Nexperia USA Inc. 74AXP1G157GNH

Overview

74AXP1G157GNH from Nexperia is a single 2-input Schmitt-trigger multiplexer operating from 0.7 V to 2.75 V supply, selecting between I0 and I1 based on S input and delivering true (non-inverted) output Y. It features IOFF partial power-down protection, 0.5 pF typical input capacitance, and −40 °C to +85 °C operation in XSON6 (SOT1115) package. Used for signal routing in ultra-low-power portable logic interfaces.

For engineers reviewing the 74AXP1G157GNH datasheet, 74AXP1G157GNH pinout, 74AXP1G157GNH application, or 74AXP1G157GNH equivalent, key selection criteria include its sub-1 V logic compatibility, IOFF-enabled system-level power sequencing, Schmitt-trigger noise immunity, and 6-terminal XSON footprint for space-constrained PCBs.

Technical Context

This device implements a single-pole double-throw (SPDT) analog/digital multiplexer with Schmitt-trigger inputs enabling robust operation with slow-rising signals. Its IOFF circuit actively disables the output when VCC = 0 V, blocking backflow current up to ±20 mA.

It complies with JEDEC standards JESD8-12A.01 through JESD8-5A.01 across five voltage bands and meets HBM ESD >2 kV and CDM >1000 V. Propagation delay ranges from 0.9 ns (VCC = 2.7 V) to 138 ns (VCC = 0.75 V), scaling predictably with supply voltage.

Key Specifications

Pinout & Package

XSON6 (SOT1115) package: extremely thin small outline, no leads, 6 terminals, body size 0.9 mm × 1.0 mm × 0.35 mm, pin 1 indicator in lower-left corner below marking code "rP".

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74LVC1G157GW and SN74LVC1G157DBVR, the 74AXP1G157GNH uniquely supports sub-1 V operation, provides IOFF protection, and delivers superior noise immunity-making it the only viable choice for battery-powered, mixed-voltage, or hot-swap-sensitive designs.

Availability

74AXP1G157GNH is available at Aetrix Electronics and suitable for portable sensor hubs, USB-C PD controllers, industrial PLC I/O modules, and ultra-low-power microcontroller GPIO expansion requiring stable component supply across global production volumes.

Supply support for 74AXP1G157GNH 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 power and signal integrity.

The AXP logic family targets ultra-low-power, wide-voltage-range applications in portable, battery-operated, and energy-sensitive systems - emphasizing sub-1 V operation, IOFF, and minimal dynamic/static power.

FAQ

Can 74AXP1G157GNH operate with a 0.8 V supply and interface to a 2.5 V sensor output?

Yes. The device supports VCC as low as 0.7 V and accepts input voltages up to 2.75 V on all pins (I0, I1, S, Y), independent of VCC level. This allows direct connection to higher-voltage sensors without level shifters, while maintaining correct logic thresholds via internal Schmitt-trigger circuitry calibrated per supply band.

What happens to the Y output when VCC is ramped down to 0 V during system shutdown?

The IOFF circuit activates when VCC falls below ~0.1 V, forcing the Y output into a high-impedance state with leakage current ≤±0.1 µA. This prevents reverse current flow from other powered rails (e.g., 3.3 V I/O bus) into the powered-down section, protecting downstream circuitry and meeting IEC 61000-4-2 system-level ESD robustness requirements.

Is the 74AXP1G157GNH pin-compatible with other XSON6 logic devices like 74LVC1G157?

No. Although both use SOT1115 (XSON6), pin assignments differ: 74AXP1G157GNH uses Pin 1=I1, Pin 2=GND, Pin 3=I0, Pin 4=Y, Pin 5=VCC, Pin 6=S; 74LVC1G157 uses Pin 1=I0, Pin 2=GND, Pin 3=I1, Pin 4=Y, Pin 5=VCC, Pin 6=S. Swapping them causes functional failure due to reversed data inputs.

How does the Schmitt-trigger input improve performance in noisy industrial environments?

Schmitt-trigger inputs provide hysteresis (typical ΔV = 0.2×VCC), rejecting noise spikes <200 mV and tolerating slow edge rates up to 200 ns/V. In industrial settings with motor drives or relay switching, this eliminates false triggering that would occur with standard CMOS inputs, ensuring deterministic multiplexer selection without added RC filtering.