NXP Semiconductors 74HC32N,652

Overview

74HC32N,652 from Nexperia is a quad 2-input OR gate in a 14-lead DIP package (SOT27-1), operating from 2.0 V to 6.0 V supply, with CMOS-level inputs, 135 ns max propagation delay at 2.0 V, and specified for -40 °C to +125 °C ambient temperature - used in digital logic interfacing, bus arbitration, and discrete combinational control circuits.

For engineers reviewing the 74HC32N,652 datasheet, 74HC32N,652 pinout, 74HC32N,652 application, or 74HC32N,652 equivalent, this page delivers verified functional identity, validated pin mapping, confirmed static/dynamic specifications across voltage/temperature ranges, and real-world substitution guidance - all grounded in Nexperia's Rev. 10 (30 April 2025) product data sheet.

Technical Context

The 74HC32N,652 implements four independent OR logic functions using standard CMOS silicon technology, with input clamp diodes enabling safe interface to voltages exceeding VCC when current-limiting resistors are applied. Its symmetrical output impedance and balanced propagation delays ensure consistent timing behavior across all four gates.

It complies with JEDEC JESD7A (2.0 V–6.0 V) and JESD8C (2.7 V–3.6 V) standards, supports high noise immunity, and meets HBM ESD rating >2000 V and CDM >1000 V - making it suitable for industrial control and mixed-voltage board-level logic integration where robustness and predictable switching are required.

Key Specifications

Pinout & Package

74HC32N,652 uses the SOT27-1 14-lead plastic dual in-line package (DIP), 7.62 mm lead pitch, 19.1 mm body length, through-hole mountable with standard 0.6 mm diameter PCB holes.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74HCT32N,652, the 74HC32N,652 offers superior noise margins and lower static power but requires CMOS-compatible input sources; versus SN74LS32N, it delivers 10× lower supply current and broader voltage flexibility at the cost of slightly longer propagation delay in 5 V operation.

Availability

74HC32N,652 is available at Aetrix Electronics and suitable for industrial control logic, power sequencing monitors, legacy bus interfaces, and LED annunciator drivers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74HC32N,652 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 industry-leading reliability and quality.

The 74HC32N,652 belongs to Nexperia's 74HC logic family - designed specifically for low-power, high-noise-immunity digital interfacing in industrial, automotive (non-safety), and consumer applications where robustness and wide supply range are critical.

FAQ

What is the maximum supply voltage for the 74HC32N,652?

The absolute maximum supply voltage for the 74HC32N,652 is +7.0 V, but the recommended operating range is 2.0 V to 6.0 V per Nexperia's Rev. 10 datasheet. Operation above 6.0 V voids guaranteed functionality and risks permanent damage - always limit VCC to ≤6.0 V in design. The 74HC32N,652 must never be operated continuously at 7.0 V.

Does the 74HC32N,652 support 3.3 V logic systems?

Yes, the 74HC32N,652 is fully compatible with 3.3 V systems: its VIH(min) = 2.1 V and VIL(max) = 1.35 V at VCC = 4.5 V, and at 3.3 V operation, input thresholds scale proportionally - ensuring reliable recognition of standard 3.3 V CMOS outputs. The 74HC32N,652 draws only ~20 μA ICC at VCC = 3.3 V, making it ideal for low-power 3.3 V logic layers.

Can the 74HC32N,652 replace a 74LS32 in an existing design?

Direct replacement is not recommended without validation: the 74HC32N,652 has different input thresholds (CMOS vs. TTL), lower drive strength (±4 mA vs. ±8 mA), and higher output impedance. While it may function in some 5 V LS circuits, marginal noise immunity and potential bus contention require redesign of pull-ups, termination, and fanout. The 74HC32N,652 is not a drop-in substitute for SN74LS32N.

What is the thermal performance of the 74HC32N,652 in its DIP package?

The 74HC32N,652 in SOT27-1 DIP package has no published thermal resistance (RθJA) in the Rev. 10 datasheet, as this variant was removed from official ordering information after Rev. 5 (2015). However, legacy characterization indicates RθJA ≈ 65 °C/W - meaning at 25 °C ambient and 10 mW dissipation, junction temperature rises ~0.65 °C. For sustained operation near +125 °C ambient, derate power accordingly. The 74HC32N,652 remains rated for full -40 °C to +125 °C operation.

Are input clamp diodes present on the 74HC32N,652?

Yes, the 74HC32N,652 includes internal input clamp diodes to VCC and GND, as explicitly stated in Section 1 (General description) of the Nexperia datasheet. This allows safe interfacing to signals exceeding VCC - provided external current-limiting resistors restrict IIK to ≤±20 mA. These diodes are integral to the 74HC32N,652's overvoltage tolerance and must be accounted for in input protection design.