Nexperia USA Inc. 74LVC1G157GV-Q100H

Overview

74LVC1G157GV-Q100 from Nexperia is a single 2-input CMOS multiplexer with Schmitt-trigger inputs, IOFF partial power-down protection, and AEC-Q100 Grade 1 qualification for automotive use. It operates from 1.65 V to 5.5 V, supports mixed-voltage translation (3.3 V/5 V), delivers ±24 mA output drive at 3.0 V, and features overvoltage-tolerant inputs up to 5.5 V. It is used in automotive body control modules for signal routing between sensors and microcontrollers.

For engineers reviewing the 74LVC1G157GV-Q100 datasheet, 74LVC1G157GV-Q100 pinout, 74LVC1G157GV-Q100 application, or 74LVC1G157GV-Q100 equivalent, key selection criteria include its IOFF-enabled power-down isolation, Schmitt-trigger noise immunity, -40 °C to +125 °C automotive temperature range, and SC-74 (SOT457) package compatibility with space-constrained PCB layouts.

Technical Context

This device implements a single-pole double-throw (SPDT) analog/digital multiplexer function using standard CMOS logic. Its Schmitt-trigger inputs accept slow-rising signals and reject noise, while the IOFF circuit actively disables outputs during VCC = 0 V to prevent backfeed current-critical for hot-swap and partial-power-down systems.

The logic function selects either I0 or I1 based on the S input (L → I0 passed, H → I1 passed), with propagation delays as low as 0.5 ns at 5.5 V and 2.2 ns typical. It complies with JEDEC standards JESD8-7, JESD8-5, JESD8C, and JESD36 across its full voltage range, ensuring interoperability in multi-rail designs.

Key Specifications

Pinout & Package

74LVC1G157GV-Q100 uses the SC-74 (SOT457) surface-mount package: plastic TSOP6, 6-lead, body size 3.1 × 1.7 mm, 0.95 mm height, pitch 0.95 mm. Pin 1 index located at lower-left corner below marking code "YP".

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G157DBVR, the 74LVC1G157GV-Q100 adds AEC-Q100 Grade 1 compliance and +125 °C operation-essential for engine bay use-while differing from 74LVC1G157GM-Q100 primarily in thermal performance and manufacturability due to its SC-74 leaded package.

Availability

74LVC1G157GV-Q100 is available at Aetrix Electronics and suitable for automotive body control modules, engine management systems, and lighting control units requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74LVC1G157GV-Q100 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 with automotive-grade reliability.

This device belongs to Nexperia's automotive-qualified LVC logic family, designed specifically for robust signal routing in harsh-temperature automotive subsystems where power sequencing, noise immunity, and long-term stability are critical.

FAQ

Does 74LVC1G157GV-Q100 support true analog signal switching?

Yes-it is specified for analog and digital multiplexing. Its CMOS transmission gate architecture allows bidirectional signal flow with typical on-resistance of ~10 Ω at VCC = 3.3 V, enabling passband operation up to 100 MHz for small-swing signals. Input overvoltage tolerance and rail-to-rail output swing support analog sensor interfacing without external clamping.

What is the maximum clock frequency for reliable digital multiplexing?

The device supports digital switching up to 100 MHz in practice, limited by propagation delay (0.5–5.0 ns) and load capacitance. At 5.5 V supply and 30 pF load, tPHL/tPLH is 4.0 ns max, allowing clean edge transitions for synchronous logic up to 100 MHz with appropriate layout and termination.

How does IOFF behave when VCC is ramping or floating?

IOFF activates when VCC drops below ~0.8 V and remains active until VCC exceeds ~1.2 V. During this window, output leakage is ≤±2 μA regardless of input/output voltage, preventing backfeed through powered downstream circuits. This behavior is verified across -40 °C to +125 °C.

Can S, I0, and I1 be driven by 5 V TTL while VCC = 3.3 V?

Yes-inputs tolerate up to 5.5 V independently of VCC. With VCC = 3.3 V, VIH(min) = 2.0 V and VIL(max) = 0.8 V per datasheet Table 7, so standard 5 V TTL outputs (VOH ≥ 2.4 V, VOL ≤ 0.4 V) meet thresholds with margin. No external level-shifting is needed.