Texas Instruments SN74LVC32AMPWREPG4

Overview

SN74LVC32AMPWREPG4 from Texas Instruments is a quadruple 2-input positive-OR gate IC operating from 2 V to 3.6 V, with propagation delay of 3.8 ns at 3.3 V, input tolerance up to 5.5 V, and extended temperature range of –55°C to 125°C. It serves as a level-translating logic gate in mixed-voltage 3.3-V/5-V digital systems, such as industrial control I/O interfaces and FPGA/CPLD glue logic.

For engineers reviewing the SN74LVC32AMPWREPG4 datasheet, SN74LVC32AMPWREPG4 pinout, SN74LVC32AMPWREPG4 application, or SN74LVC32AMPWREPG4 equivalent, key selection criteria include its 14-pin TSSOP package, rail-to-rail input compatibility, low ground bounce (<0.8 V), and guaranteed operation across military-grade temperature extremes.

Technical Context

This device implements four independent OR logic functions (Y = A + B) using LVC-series CMOS technology, enabling robust noise immunity and fast switching in high-density PCB layouts. Each gate features symmetric input thresholds, TTL-compatible logic levels at 3.3 V, and output drive capability of ±24 mA.

Designed for enhanced reliability in harsh environments, the SN74LVC32AMPWREPG4 includes ESD protection exceeding 2000-V HBM, 200-V MM, and 1000-V CDM, along with qualified pedigree per MIL-PRF-38535 for extended temperature operation and long-term stability under thermal cycling and biased HAST stress.

Key Specifications

Pinout & Package

TSSOP-14 (PW) package: 4.4 mm × 5.0 mm body, 1.2 mm max height, 0.65 mm lead pitch, exposed pad not present, RoHS-compliant NiPdAu finish, MSL Level-1.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar positive-OR gate applications.

Compared with SN74LVC32AMPWREPG4, SN74LVC32AQPWREP offers identical functionality at lower qualification cost but lacks extended cold-start capability, while SN54LVC32A adds rigorous military screening at significantly higher unit price and longer lead time.

Availability

SN74LVC32AMPWREPG4 is available at Aetrix Electronics and suitable for industrial automation, aerospace data acquisition, and defense electronics requiring stable component supply across extreme temperature profiles and long production lifecycles.

Supply support for SN74LVC32AMPWREPG4 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

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and logic solutions, with over 90 years of innovation in high-reliability components.

The SN74LVC32A-EP product line delivers enhanced plastic logic gates engineered for extended temperature operation and controlled manufacturing in defense, aerospace, and industrial applications where standard commercial parts cannot meet environmental or longevity requirements.

FAQ

What is the maximum input voltage rating for SN74LVC32AMPWREPG4?

The SN74LVC32AMPWREPG4 supports input voltages from –0.5 V to 5.5 V, independent of VCC. This allows direct connection to 5-V TTL outputs without external level-shifting circuitry, making it ideal for mixed-voltage system interfacing. The absolute maximum rating is strictly limited to 5.5 V to prevent latch-up or permanent damage.

Does SN74LVC32AMPWREPG4 require external pull-up or pull-down resistors on unused inputs?

Yes - all unused inputs of SN74LVC32AMPWREPG4 must be tied to either VCC or GND to prevent floating nodes that could cause excessive ICC current, logic instability, or increased EMI. TI's application report SCBA004 explicitly recommends hard-wiring unused inputs rather than relying on weak internal biasing, as this device has no built-in input hysteresis or weak pull-ups.

What is the thermal resistance (θJA) of SN74LVC32AMPWREPG4 in its TSSOP-14 package?

The SN74LVC32AMPWREPG4 in the PW (TSSOP-14) package has a junction-to-ambient thermal resistance (θJA) of 113°C/W under standard JEDEC test conditions (1-layer board, 1-in² copper). This value assumes proper PCB layout with adequate copper pour and thermal vias; actual θJA may improve to ~65°C/W with optimized 2-layer or 4-layer thermal design.

Is SN74LVC32AMPWREPG4 pin-compatible with standard SN74LVC32A variants?

Yes - SN74LVC32AMPWREPG4 shares identical pinout, logic function, and electrical behavior with other TSSOP-14 variants like SN74LVC32AQPWREP and SN74LVC32A, including matching 1A–4Y, VCC, and GND assignments. No PCB redesign is needed when substituting within the same PW package family.

What does the 'G4' suffix indicate in SN74LVC32AMPWREPG4?

The 'G4' suffix in SN74LVC32AMPWREPG4 denotes a specific tape-and-reel packaging configuration compliant with TI's internal shipping standards - specifically, a 2000-unit reel with Q1 quadrant orientation, 12.4-mm tape width, and RoHS-compliant NiPdAu lead finish. It does not reflect functional or parametric differences from SN74LVC32AMPWREP.