Nexperia USA Inc. 74HCT4075D,653

Overview

74HCT4075D,653 from Nexperia is a triple 3-input OR gate in SO14 (SOT108-1) package, designed for TTL-level input compatibility with 4.5 V to 5.5 V supply operation. It delivers guaranteed HIGH-level output voltage ≥3.98 V at 4.0 mA load and LOW-level output voltage ≤0.26 V under same conditions, with propagation delay of 12–36 ns across temperature range –40 °C to +125 °C. It is used in digital logic consolidation, bus arbitration, and enable signal combining in industrial control modules.

For engineers reviewing the 74HCT4075D,653 datasheet, 74HCT4075D,653 pinout, 74HCT4075D,653 application, or 74HCT4075D,653 equivalent, key selection criteria include TTL-compatible input thresholds (VIH = 2.0 V min, VIL = 0.8 V max), SO14 thermal derating (10.1 mW/K above 100 °C), and ESD robustness (HBM >2000 V, CDM >1000 V).

Technical Context

This device implements three independent 3-input OR functions using silicon-gate CMOS technology with TTL-compatible input circuitry. Each gate performs Boolean OR logic: output is HIGH if ≥1 input is HIGH, per truth table (L/L/L → L; X/X/H → H). Inputs feature integrated clamp diodes enabling safe interfacing to voltages exceeding VCC when current-limiting resistors are used.

It operates within JEDEC-standard recommended conditions: VCC = 4.5–5.5 V, ambient temperature –40 °C to +125 °C. Static performance includes VIH = 2.0 V (min), VIL = 0.8 V (max), VOH = 3.98 V (min at IO = –4.0 mA), and VOL = 0.26 V (max at IO = 4.0 mA), ensuring reliable noise margins in mixed-logic systems.

Key Specifications

Pinout & Package

74HCT4075D,653 uses the SO14 (SOT108-1) plastic small outline package: 14-pin, 3.9 mm body width, 1.27 mm lead pitch, and gull-wing leads suitable for reflow soldering. Thermal resistance θJA = 100 K/W (typ) per JEDEC MS-012.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 3-input OR gate applications.

Compared with SN74HCT4075DR and MC74HCT4075ADTR2G, the 74HCT4075D,653 offers optimal balance of +125 °C operation, lowest typical ICC (2.0 μA), and Nexperia's industry-leading ESD robustness - making it preferred for high-reliability industrial and automotive-adjacent designs.

Availability

74HCT4075D,653 is available at Aetrix Electronics and suitable for industrial automation controllers, automotive body electronics, and power management subsystems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74HCT4075D,653 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 leading Dutch semiconductor manufacturer specializing in high-performance logic, analog, and discrete components, with core expertise in efficiency, reliability, and miniaturization.

The 74HCT4075D,653 belongs to Nexperia's 74HCT logic family - engineered for seamless integration between TTL and CMOS systems, emphasizing robustness, wide temperature operation, and low-power static consumption in industrial and automotive-qualified applications.

FAQ

Is 74HCT4075D,653 pin-compatible with 74HC4075D?

Yes - both share identical SO14 pinout (SOT108-1), including 1A–3C inputs, 1Y–3Y outputs, VCC (Pin 14), and GND (Pin 7). However, 74HC4075D uses CMOS-level inputs (VIH = 3.15 V min at VCC = 4.5 V), while 74HCT4075D,653 uses TTL-level inputs (VIH = 2.0 V min), making them electrically interchangeable only when driven by TTL sources.

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

The 74HCT4075D,653 is characterized with CL = 50 pF in dynamic testing (tpd, tt), and its output drive strength (±4.0 mA) supports stable operation into ≤50 pF loads at full speed. For loads >50 pF, propagation delay increases linearly - e.g., at CL = 100 pF, tpd rises ~25% versus 50 pF, per Nexperia's application guidance.

Does this part support 3.3 V operation?

No - the 74HCT4075D,653 is specified only for VCC = 4.5 V to 5.5 V. Its TTL-compatible inputs require ≥2.0 V VIH, which is incompatible with 3.3 V logic high levels (typically 2.0–2.4 V), risking marginal or incorrect recognition. Use 74LVC4075 or 74AUP4075 for true 3.3 V operation.

How does the input clamp diode affect external interface design?

The integrated input clamp diodes allow connection to signals up to VCC + 0.5 V safely - provided a series current-limiting resistor restricts IIK to ≤±20 mA. For example, interfacing a 12 V sensor output requires a minimum 350 Ω resistor (assuming VCC = 5 V) to hold clamp current within rating and avoid latch-up.