Nexperia USA Inc. 74AUP1G157GXZ

Overview

74AUP1G157GXZ from Nexperia is a single 2-input CMOS multiplexer with Schmitt-trigger inputs, operating from 0.8 V to 3.6 V supply, featuring IOFF partial power-down protection, <0.9 µA max static ICC, and -40 °C to +125 °C temperature range. It routes one of two digital inputs (I0/I1) to output Y under select control (S), used in low-power sensor interface signal routing and battery-powered logic level selection.

For engineers reviewing the 74AUP1G157GXZ datasheet, 74AUP1G157GXZ pinout, 74AUP1G157GXZ application, or 74AUP1G157GXZ equivalent, key selection criteria include ultra-low static current (<0.9 µA), overvoltage-tolerant inputs (to 3.6 V), IOFF-enabled power sequencing, Schmitt-trigger noise immunity, and X2SON6 package thermal performance for space-constrained PCBs.

Technical Context

The 74AUP1G157GXZ implements a single-pole double-throw (SPDT) analog/digital multiplexer function using standard CMOS transmission gates, with Schmitt-trigger inputs ensuring robust operation against slow-rising signals and EMI-induced glitches. Its IOFF circuit actively disables output leakage when VCC = 0 V, preventing backflow current during partial system power-down.

It supports dynamic operation across five JEDEC voltage classes (JESD8-12 through JESD8C), maintains propagation delay as low as 1.2 ns (VCC = 3.6 V, CL = 5 pF), and delivers rail-to-rail output swing with VOH ≥ 2.6 V and VOL ≤ 0.44 V at 3.0 V supply and 4 mA load.

Key Specifications

Pinout & Package

X2SON6 plastic thermal-enhanced extremely thin small outline package (SOT1255-2); 6-terminal, no leads; body dimensions 1.0 × 0.8 × 0.32 mm; exposed thermal pad not electrically connected; pin 1 index located at lower-left corner below marking code.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G157DBVR and 74LVC1G3157GW, the 74AUP1G157GXZ delivers the lowest static current (0.9 µA vs. 2–10 µA), best thermal performance in X2SON6, and guaranteed IOFF behavior - making it optimal for energy-critical, thermally constrained, and multi-rail power-sequenced designs.

Availability

74AUP1G157GXZ is available at Aetrix Electronics and suitable for industrial sensor hubs, automotive body control modules, portable medical monitors, and smart home edge nodes requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74AUP1G157GXZ 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 delivering high-performance, reliable, and energy-efficient logic, analog, and MOSFET solutions for automotive, industrial, and consumer markets.

The 74AUP (Advanced Ultra-low Power) product line targets battery-operated and thermally constrained applications where nanowatt-level static power, wide-VCC operation, and robust IOFF behavior are essential design requirements.

FAQ

What is the maximum allowable input voltage when VCC = 1.2 V?

The 74AUP1G157GXZ supports overvoltage-tolerant inputs up to 3.6 V regardless of VCC level. When VCC = 1.2 V, inputs I0, I1, and S may safely accept signals from 0 V to 3.6 V without damage or latch-up, per datasheet Table 5 and Section 2. This eliminates level-shifting circuitry in mixed-voltage systems.

Does the IOFF feature protect against back-current when only VCC is grounded?

Yes. The IOFF circuit activates when VCC = 0 V (or ≤ 0.2 V), disabling both output driver and internal pass gates. This limits I/O terminal leakage to ±0.75 µA maximum (per Table 7, Tamb = –40 °C to +125 °C), preventing damaging reverse current flow into powered downstream logic - confirmed in Section 1 and Table 7.

Can this device route analog signals such as audio or sensor outputs?

Yes, the 74AUP1G157GXZ functions as a bidirectional analog switch with typical R_ON < 100 Ω (inferred from CPD = 4.0 pF and tpd characteristics). It passes signals up to ~100 MHz bandwidth (CL = 5 pF, tpd ≈ 1.2 ns), supporting audio, thermistor, and low-frequency sensor signals - though dedicated analog switches like 74LVC1G3157 offer lower R_ON and guaranteed analog specs.

How does the Schmitt-trigger input improve noise immunity compared to standard CMOS inputs?

Schmitt-trigger inputs provide hysteresis ≥ 0.3 × VCC (e.g., ~360 mV at VCC = 1.2 V), creating distinct HIGH and LOW thresholds. This rejects slow-rising noise, contact bounce, and EMI-induced oscillations that would cause metastability or false triggering in standard CMOS inputs - directly specified in Section 1 and Table 7.