STMicroelectronics 74AC00MTR

Overview

74AC00MTR from STMicroelectronics is a quad 2-input NAND gate IC in SO-14 package, operating at 2V–6V supply, with 4ns typical propagation delay (5V), ±24mA symmetrical output drive, and 2µA max quiescent current at 25°C - used in high-speed digital logic interfacing, address decoding, and control signal conditioning in industrial PLCs and embedded controllers.

For engineers reviewing the 74AC00MTR datasheet, 74AC00MTR pinout, 74AC00MTR application, or 74AC00MTR equivalent, key selection criteria include transmission-line driving capability (50Ω), latch-up immunity, ESD tolerance (2kV), balanced tPLH/tPHL, and compatibility with legacy 74-series logic families.

Technical Context

The 74AC00MTR implements four independent NAND gates using sub-micron C2MOS technology with three-stage buffered outputs, enabling stable switching and high noise immunity (VNIH/VNIL ≥ 28% VCC). Its internal protection circuits provide 2kV HBM ESD robustness on all I/O pins.

It supports rail-to-rail input voltage (0 to VCC) and delivers symmetrical output sourcing/sinking (≥24mA at VCC = 5V), with guaranteed incident-wave switching on 50Ω transmission lines - critical for clean edge integrity in backplane and board-level interconnects.

Key Specifications

Pinout & Package

74AC00MTR is housed in a 14-pin SOIC (Small Outline Integrated Circuit) package, 3.9mm wide, with standard 1.27mm pitch and gull-wing leads. Pin 1 is marked by a beveled corner or notch.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad NAND gate applications.

Compared with 74HC00DR and SN74AC00N, the 74AC00MTR uniquely combines SO-14 compactness, 4ns speed, 50Ω line driving, and 24mA drive - making it optimal for space-constrained, high-integrity digital interconnects.

Availability

74AC00MTR is available at Aetrix Electronics and suitable for industrial control logic, memory address decoding, serial interface handshaking, and power sequencing control requiring stable component supply across extended temperature ranges (–55°C to +125°C).

Supply support for 74AC00MTR 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 microcontrollers, power ICs, sensors, and logic devices for industrial, automotive, and consumer markets.

The 74AC series was developed to deliver advanced CMOS performance - combining high speed, low power, and robust noise immunity - specifically for demanding digital system interfacing and control applications.

FAQ

Is 74AC00MTR compatible with 5V TTL input levels?

Yes - its VIH minimum is 2.1V at VCC = 3.0V and 3.15V at VCC = 4.5V, exceeding TTL's 2.0V VIH threshold. With VCC = 5V, VIH(min) = 3.85V, ensuring reliable recognition of TTL-high signals without level shifting.

Can 74AC00MTR operate reliably at 3.3V supply?

Yes - it is fully specified down to 2V and explicitly characterized at 3.3V (±0.3V). At 3.3V, tPD is 5.2ns (typ.), VOH is ≥2.9V, and VOL is ≤0.1V at 50µA load - meeting standard 3.3V LVTTL interface requirements.

What is the maximum fan-out for 74AC00MTR driving 74AC inputs?

At VCC = 5V, each output can drive ≥24 AC loads (based on IOL = 24mA and IIH = 1µA per input). This assumes worst-case –55°C to +125°C operation and accounts for input leakage and propagation delay degradation across temperature.

Does 74AC00MTR require external pull-up or pull-down resistors on unused inputs?

No - unused inputs may be tied directly to VCC or GND. The device has no internal pull-ups; however, floating inputs must be avoided to prevent increased ICC and potential oscillation due to noise coupling into high-impedance nodes.