STMicroelectronics M74HC4075RM13TR

Overview

M74HC4075RM13TR from STMicroelectronics is a high-speed CMOS triple 3-input OR gate in TSSOP-14 package, operating from 2V to 6V supply, with typical propagation delay of 9 ns at 6V, symmetrical output drive (±4 mA), and input noise immunity ≥28% VCC. It serves as a logic combiner in industrial control signal routing and embedded system state decoding.

For engineers reviewing the M74HC4075RM13TR datasheet, M74HC4075RM13TR pinout, M74HC4075RM13TR application, or M74HC4075RM13TR equivalent, key selection criteria include guaranteed 3-input OR functionality per gate, TSSOP-14 footprint compatibility with legacy 74-series layouts, wide VCC range for mixed-voltage interfacing, and low ICC ≤1 µA at 25°C for battery-sensitive logic stages.

Technical Context

This device implements three independent 3-input OR gates using silicon-gate C2MOS technology, with four-stage internal buffering to ensure stable output transitions and high noise rejection. Each gate features diode-protected inputs and rail-to-rail output swing under specified load conditions.

Propagation delays tPLH and tPHL are balanced (tPLH ≅ tPHL), and output impedance is symmetrical (|IOH| = IOL ≥ 4 mA), enabling predictable timing in both rising and falling edges across temperature ranges from –55°C to +125°C.

Key Specifications

Pinout & Package

TSSOP-14 package: 4.9 mm × 6.4 mm body, 0.65 mm pitch, exposed pad not present, moisture sensitivity level MSL3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74HC4075PW and 74VHC4075FT, M74HC4075RM13TR offers the lowest ICC (1 µA) and widest VCC range (2–6 V), making it optimal for battery-backed or multi-rail industrial systems where power and flexibility outweigh marginal speed gains.

Availability

M74HC4075RM13TR is available at Aetrix Electronics and suitable for industrial PLC input conditioning, automotive body control modules, medical infusion pump status logic, and test equipment signal routing requiring stable component supply across extended temperature and voltage ranges.

Supply support for M74HC4075RM13TR 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing analog, digital, and mixed-signal ICs for industrial, automotive, and consumer applications.

M74HC4075RM13TR belongs to the M74HC high-speed CMOS logic family, engineered for low-power, noise-immune combinational logic in harsh-environment embedded systems.

FAQ

Is M74HC4075RM13TR compatible with 3.3 V logic systems?

Yes. The device operates down to 2 V and meets full HC logic thresholds at 3.3 V: VIH = 2.31 V (min), VIL = 0.99 V (max), VOH ≥ 3.17 V at IO = –4 mA, and VOL ≤ 0.26 V at IO = 4 mA - ensuring reliable interfacing with 3.3 V microcontrollers and FPGAs.

Does M74HC4075RM13TR require external pull-up or pull-down resistors on unused inputs?

No. Unused inputs may be tied directly to VCC or GND. The internal protection circuitry and CMOS input structure eliminate need for external biasing; floating inputs are strictly prohibited due to increased ICC and potential oscillation.

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

Driving CL ≤ 50 pF is validated per AC specifications (tPLH/tPHL, tr/tf). At 6 V, it maintains tPLH ≤ 20 ns and output transition time ≤ 19 ns. For loads >50 pF, propagation delay increases linearly; derating curves in Figure 5 of the datasheet show +2.5 ns per additional 10 pF.

Can M74HC4075RM13TR be used in place of a 74LS4075 in an existing design?

Yes, with voltage and timing verification. It matches 74LS4075 pinout and logic function, but operates at higher VCC (2–6 V vs. 4.75–5.25 V) and delivers stronger drive (4 mA vs. 0.4 mA). Ensure input signals meet HC thresholds and that load capacitance remains within 50 pF for timing compliance.