Texas Instruments CD74AC10ME4

Overview

CD74AC10ME4 from Texas Instruments is a triple 3-input positive-NAND gate logic IC operating across 1.5 V to 5.5 V, delivering ±24 mA output drive, balanced propagation delays (3.1–12.2 ns at 5 V), and SCR latchup-resistant CMOS design for industrial control and digital interface logic functions.

For engineers reviewing the CD74AC10ME4 datasheet, CD74AC10ME4 pinout, CD74AC10ME4 application, or CD74AC10ME4 equivalent, this device supports robust noise immunity (30% of VCC), ESD protection exceeding 2 kV per MIL-STD-883, and operation from –55°C to 125°C in SOIC-14 packaging.

Technical Context

The CD74AC10ME4 implements three independent 3-input NAND gates performing Y = A • B • C in positive logic, with fully buffered inputs and outputs. Each gate exhibits matched tPLH/tPHL propagation characteristics and operates without internal feedback paths or enable controls.

It uses a high-speed AC CMOS process enabling bipolar-F/AS/S speed grades with significantly lower power than equivalent bipolar families. Input thresholds scale with VCC (VIH = 0.7×VCC, VIL = 0.3×VCC), ensuring compatibility across 1.5 V, 3.3 V, and 5 V logic domains.

Key Specifications

Pinout & Package

CD74AC10ME4 is housed in a 14-pin SOIC (D) package with 1.27 mm pitch, 8.75 mm × 3.91 mm body, and 1.75 mm max height, compliant with JEDEC MS-012AB and RoHS.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CD74AC10ME4, SN74AC10N offers identical logic behavior in through-hole form but sacrifices thermal performance and surface-mount compatibility, while 74LVC10PW trades industrial temperature range and military-grade ESD for lower voltage operation and reduced static power.

Availability

CD74AC10ME4 is available at Aetrix Electronics and suitable for industrial control logic, digital signal conditioning, legacy system interface, and test equipment sequencing requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for CD74AC10ME4 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

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and logic solutions, with over 50 years of innovation in high-reliability logic families.

The CD74AC10ME4 belongs to TI's advanced CMOS (AC) logic series, engineered for high-speed, low-power, and wide-voltage industrial applications where robustness and interoperability across logic families are essential.

FAQ

What is the maximum operating frequency supported by the CD74AC10ME4?

The CD74AC10ME4 does not specify a maximum clock frequency in its datasheet because it is a combinational logic device without an internal clock. However, based on its worst-case propagation delay of 12.2 ns at 5 V and 50 pF load, it supports reliable toggle rates exceeding 80 MHz in typical fanout-1 configurations. For precise timing analysis in your CD74AC10ME4 application, calculate maximum frequency using tPD(max) = 12.2 ns and ensure setup/hold margins are maintained in synchronous systems.

Can the CD74AC10ME4 operate at 1.8 V supply voltage?

Yes, the CD74AC10ME4 is fully specified to operate at 1.8 V, falling within its guaranteed 1.5 V to 5.5 V supply range. At 1.8 V, input thresholds are VIH = 1.26 V and VIL = 0.54 V, and propagation delay increases to approximately 139 ns (per datasheet Table 3). The CD74AC10ME4 maintains full functionality and noise immunity (30% of 1.8 V = 0.54 V) at this voltage, making it suitable for mixed-voltage 1.8 V/3.3 V system interfaces.

Is the CD74AC10ME4 pin-compatible with the CD74HC10?

No, the CD74AC10ME4 is not pin-compatible with the CD74HC10. While both are triple 3-input NAND gates in SOIC-14 packages, the CD74HC10 uses different input threshold ratios (VIH ≈ 0.7×VCC, VIL ≈ 0.3×VCC same as AC), but its output drive (±4 mA) and propagation delay (21 ns at 5 V) differ significantly. More critically, the CD74HC10 has distinct absolute maximum ratings and thermal characteristics. Substituting CD74HC10 for CD74AC10ME4 requires full revalidation of timing, drive strength, and noise margin in the target CD74AC10ME4 application.

Does the CD74AC10ME4 require pull-up or pull-down resistors on unused inputs?

Yes, all unused inputs of the CD74AC10ME4 must be held at a defined logic level - either VCC or GND - to prevent floating nodes that cause excessive current draw, oscillation, or erratic output behavior. TI's application report SCBA004 explicitly mandates this practice. Leaving any of the nine inputs (1A–1C, 2A–2C, 3A–3C) unconnected violates recommended operating conditions and may compromise reliability. This requirement applies regardless of whether the CD74AC10ME4 is used in industrial or commercial environments.

What is the meaning of "ME4" in the CD74AC10ME4 part number?

The "ME4" suffix in CD74AC10ME4 denotes Texas Instruments' standard SOIC (D) package with NiPdAu lead finish, RoHS-compliant materials, and tape-and-reel packaging (2500 units per reel). It corresponds to the orderable part CD74AC10M96 per TI's packaging addendum, where "M" indicates SOIC, "96" specifies large tape-and-reel, and "E4" is TI's internal assembly code for this specific material and finish configuration. The CD74AC10ME4 is functionally identical to CD74AC10M96 and shares all electrical, thermal, and mechanical specifications.