NXP Semiconductors 74AHCT32PW,118

Overview

74AHCT32PW,118 from Nexperia is a quad 2-input OR gate logic IC with TTL-compatible input thresholds, 4.5 V to 5.5 V supply operation, -40 °C to +125 °C temperature rating, and TSSOP14 (SOT402-1) package. It functions as a level-translating combinational logic element in mixed-voltage digital interfaces, supporting fast propagation delays down to 3.1 ns (typ.) at 5 V and 15 pF load.

For engineers reviewing the 74AHCT32PW,118 datasheet, 74AHCT32PW,118 pinout, 74AHCT32PW,118 application, or 74AHCT32PW,118 equivalent, key selection criteria include TTL-level input compatibility, overvoltage-tolerant inputs up to 5.5 V, guaranteed operation across automotive-grade temperature range, and low dynamic power dissipation via 12 pF CPD.

Technical Context

This device implements four independent OR logic functions (A + B = Y) using CMOS silicon with TTL-compatible input stage design. Input thresholds are fixed at VIH ≥ 2.0 V and VIL ≤ 0.8 V under 4.5–5.5 V supply, enabling direct interfacing with legacy 5 V TTL outputs without external biasing.

Each gate features Schmitt-trigger action on inputs for noise immunity, and all inputs tolerate up to 5.5 V regardless of VCC - a critical capability for voltage translation between 3.3 V logic domains and 5 V peripherals. Propagation delay is characterized with defined measurement points (VM = 1.5 V for inputs, 0.5 × VCC for outputs) and load-dependent timing across 15 pF and 50 pF conditions.

Key Specifications

Pinout & Package

TSSOP14 package (SOT402-1): plastic thin shrink small outline, 14 leads, body width 4.4 mm, 0.65 mm lead pitch, exposed pad not electrically connected.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74AHCT32D,118, the 74AHCT32PW,118 offers 30 % smaller footprint and improved thermal performance in high-density layouts; versus SN74AHCT32PWR, it delivers broader temperature qualification and tighter propagation delay consistency across automotive operating conditions.

Availability

74AHCT32PW,118 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, and legacy system upgrade adapters requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74AHCT32PW,118 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, analog, and discrete components with emphasis on reliability and manufacturability.

The 74AHCT series belongs to Nexperia's industry-standard logic portfolio, engineered specifically for robust interoperability between TTL and CMOS domains in automotive, industrial, and computing infrastructure applications.

FAQ

Can 74AHCT32PW,118 operate with a 3.3 V supply?

No. The 74AHCT32 variant is specified only for 4.5 V to 5.5 V operation. Its TTL-compatible input thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V) are optimized for 5 V systems; at 3.3 V, input recognition becomes unreliable and output drive strength degrades significantly. Use 74AHC32PW,118 for 2.0–5.5 V operation with CMOS thresholds instead.

Is the exposed pad on the TSSOP14 package electrically connected?

No. The thermal pad on SOT402-1 (TSSOP14) is not electrically connected to any internal node. Per Nexperia's datasheet, it may remain floating or be connected to GND for thermal improvement, but no electrical requirement exists for soldering it. PCB layout should follow the manufacturer's recommended land pattern without assuming electrical continuity.

What is the maximum output sink/source current per pin?

The absolute maximum DC output current per pin is ±25 mA, but the recommended operating condition specifies ±8.0 mA for VOH/VOL validation. Sustained operation above ±8 mA risks exceeding VOL/VOH limits and increasing junction temperature beyond safe limits, especially at elevated ambient temperatures. Derating is required above 85 °C ambient.

Does this device support hot insertion or live swapping?

No. The 74AHCT32PW,118 lacks explicit hot-swap protection features such as power-on reset, Ioff partial power-down, or bus-hold circuitry. Applying input signals before VCC stabilization may cause latch-up or excessive ICC. Power sequencing - VCC first, then inputs - is mandatory per Nexperia's application guidance.