Nexperia USA Inc. 74ALVC32D,118

Overview

74ALVC32D,118 from Nexperia is a quad 2-input OR gate logic IC with Schmitt-trigger inputs for noise immunity, IOFF partial power-down protection, and operation across 1.65 V to 3.6 V supply. It delivers propagation delay as low as 2.0 ns at 3.0–3.6 V, supports -40 °C to +125 °C ambient, and features overvoltage-tolerant inputs up to 3.6 V-used in industrial control signal conditioning and level translation between mixed-voltage subsystems.

For engineers reviewing the 74ALVC32D,118 datasheet, 74ALVC32D,118 pinout, 74ALVC32D,118 application, or 74ALVC32D,118 equivalent, key selection criteria include input threshold compatibility with TTL/1.8 V/3.3 V interfaces, IOFF-enabled hot-swap capability, thermal performance in SO14 packaging, and static/dynamic drive strength under extended temperature operation.

Technical Context

This device implements four independent OR logic functions (A + B = Y) with Schmitt-trigger inputs that provide hysteresis (typ. ΔV = 0.3 V), enabling robust operation with slow-rising signals common in sensor interfaces and mechanical switch debouncing. Each gate exhibits symmetrical HIGH/LOW output drive capability up to ±24 mA at VCC = 3.0 V.

The IOFF circuit actively disables outputs when VCC = 0 V, limiting backflow current to ≤±10 μA (max) and preventing bus contention during power sequencing-critical in multi-rail FPGA I/O banks and modular PLC backplanes where individual sections power up/down asynchronously.

Key Specifications

Pinout & Package

74ALVC32D,118 uses the SO14 (SOT108-1) package: plastic small outline, 14-lead, 3.9 mm body width, 1.27 mm lead pitch. Pin 1 is index-marked; pin 7 is GND; pin 14 is VCC.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC32APWR and 74AUP2G32DC,125, the 74ALVC32D,118 uniquely combines Schmitt-trigger noise immunity, IOFF-enabled hot-swap safety, and industrial temperature rating-making it the only choice for ruggedized signal aggregation in mixed-voltage, high-noise environments.

Availability

74ALVC32D,118 is available at Aetrix Electronics and suitable for industrial control systems, programmable logic controllers, and automotive body electronics requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74ALVC32D,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 delivering high-performance logic, analog, and MOSFET solutions optimized for efficiency, reliability, and manufacturability in high-volume applications.

The 74ALVC series targets industrial and automotive signal-integrity-critical logic functions, emphasizing robustness across wide voltage/temperature ranges and seamless integration into mixed-supply systems.

FAQ

Does 74ALVC32D,118 support true bidirectional level shifting?

No. The 74ALVC32D,118 is a unidirectional OR gate with inputs tolerant up to 3.6 V regardless of VCC, but outputs swing only between GND and VCC. It can translate higher-voltage inputs down to the VCC domain, but cannot drive signals above VCC. For true bidirectional translation, a dedicated level shifter like NXSA5102 must be used.

Can the IOFF feature be used with VCC = 0 V while inputs remain at 3.3 V?

Yes. When VCC = 0 V, the IOFF circuit disables all outputs, clamping leakage to ≤±10 μA even if inputs are held at 3.3 V. This is explicitly validated in Table 4 (Limiting Values) and Table 9 (Static Characteristics), ensuring safe operation during hot-swap events without external diode protection.

What is the maximum capacitive load the outputs can drive while maintaining specified tpd?

The propagation delay specification assumes a 30 pF load for VCC ≤ 2.7 V and 50 pF for VCC ≥ 3.0 V, per Table 9 test conditions. Driving >50 pF increases tpd nonlinearly and may degrade VOH/VOL margins; for loads exceeding 50 pF, buffer staging or reduced slew-rate termination is recommended.

Is the SO14 package (SOT108-1) RoHS compliant and lead-free?

Yes. The 74ALVC32D,118 in SO14 packaging conforms to RoHS Directive 2011/65/EU and is lead-free, with matte tin (Sn) lead finish. The package outline drawing (Fig. 6) and ordering information (Table 1) confirm SOT108-1 compliance, and Nexperia's product change notices document full exemption-free compliance since Rev. 5 (2021).