Nexperia USA Inc. 74AHC32D-Q100J

Overview

74AHC32D-Q100 from Nexperia is an automotive-qualified quad 2-input OR gate in SO14 (SOT108-1) package, operating from 2.0 V to 5.5 V supply, with CMOS-level inputs, overvoltage-tolerant inputs up to 5.5 V, and guaranteed operation from −40 °C to +125 °C. It serves as a logic-level translator in mixed-voltage automotive subsystems such as body control modules and infotainment power sequencing.

For engineers reviewing the 74AHC32D-Q100 datasheet, 74AHC32D-Q100 pinout, 74AHC32D-Q100 application, or 74AHC32D-Q100 equivalent, key selection considerations include input voltage compatibility (CMOS), propagation delay at 5 V (max 5.5 ns @ CL = 15 pF), AEC-Q100 Grade 1 qualification, Schmitt-trigger input hysteresis, and SO14 package thermal derating above 100 °C.

Technical Context

This device implements four independent 2-input OR logic functions with balanced tPLH/tPHL propagation delays and rail-to-rail output swing. All inputs feature Schmitt-trigger action for noise immunity and support overvoltage tolerance up to 5.5 V regardless of VCC level - enabling safe interfacing between 3.3 V logic and 5 V signal domains.

It complies with AEC-Q100 Grade 1 (−40 °C to +125 °C) and includes ESD protection exceeding 2000 V HBM and 1000 V CDM. Static drive capability is ±8 mA at VCC = 4.5 V, with low ICC (max 40 μA at 5.5 V) and dynamic CPD of 10 pF for predictable power estimation.

Key Specifications

Pinout & Package

74AHC32D-Q100 uses the SO14 (SOT108-1) plastic small outline package: 14-lead, 3.9 mm body width, 1.27 mm lead pitch, with gull-wing leads and standard pin 1 index marking.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74AHC32D-Q100, the 74AHCT32D-Q100 offers TTL input compatibility at the cost of marginally slower timing and reduced noise immunity, while the SN74LVC32APWR delivers higher drive strength and wider VCC flexibility but lacks automotive qualification - making the 74AHC32D-Q100 the optimal choice for new AEC-Q100-compliant designs requiring CMOS input compatibility and robust mixed-voltage operation.

Availability

74AHC32D-Q100 is available at Aetrix Electronics and suitable for automotive body electronics, ADAS subsystems, and infotainment power management requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for 74AHC32D-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 specializing in high-volume, high-reliability logic, analog, and discrete components, with leadership in automotive-qualified standard products.

The 74AHC32D-Q100 belongs to Nexperia's AEC-Q100-qualified advanced logic family, designed specifically for robust, low-power combinational logic in automotive control units where voltage translation, noise immunity, and thermal resilience are critical.

FAQ

Is 74AHC32D-Q100 pin-compatible with standard 74-series OR gates?

Yes - it follows the industry-standard SO14 pinout for quad 2-input OR gates (e.g., 74HC32, 74LS32), with identical pin assignments for inputs (1A–4B), outputs (1Y–4Y), VCC (pin 14), and GND (pin 7). No PCB redesign is needed when upgrading from legacy parts, provided voltage and timing requirements align.

Can 74AHC32D-Q100 operate with VCC = 3.3 V while accepting 5 V inputs?

Yes - its overvoltage-tolerant inputs accept up to 5.5 V regardless of VCC level. At VCC = 3.3 V, VIH is 2.1 V (min), ensuring reliable recognition of 5 V logic highs without damage or level-shifting circuitry, making it ideal for bridging 3.3 V MCU domains with 5 V sensors or actuators.

What is the maximum capacitive load this device can drive reliably?

Based on dynamic characterization, 74AHC32D-Q100 maintains specified propagation delay (≤5.5 ns) and output voltage levels (VOH ≥ 3.94 V, VOL ≤ 0.36 V) driving up to 50 pF at VCC = 4.5–5.5 V. For loads >30 pF, add series termination or verify timing margins in the target application due to increased rise/fall times.

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

No - all inputs have internal Schmitt-trigger action and defined logic thresholds. However, for best noise immunity and power efficiency, unused inputs should be tied to VCC or GND (not left floating). This prevents unintended switching and minimizes ICC increase caused by input oscillation near threshold voltage.