Texas Instruments CD74ACT541M96G4

Overview

CD74ACT541M96G4 from Texas Instruments is a non-inverting octal 3-state buffer/line driver with dual active-low output enables, designed for high-speed digital bus interfacing in industrial and extended-temperature systems. It operates at 4.5–5.5 V, delivers ±24 mA output drive per pin, supports 50-Ω transmission-line driving, and features balanced propagation delays (tPLH/tPHL ≤ 7.5 ns at 5 V, −40°C to +85°C). It is used in microcontroller address/data bus buffering and backplane signal conditioning.

For engineers reviewing the CD74ACT541M96G4 datasheet, CD74ACT541M96G4 pinout, CD74ACT541M96G4 application, or CD74ACT541M96G4 equivalent, key selection criteria include its ACT-series TTL-compatible input thresholds (VIH = 2 V min, VIL = 0.8 V max), 3-state leakage current (±0.5 µA), thermal resistance (RθJA = 101.2 °C/W in SOIC-20), and compatibility with fast logic families including FAST®.

Technical Context

The CD74ACT541M96G4 implements eight independent non-inverting buffers, each controlled by two shared active-low output enable inputs (OE1, OE2) - both must be low for outputs to be active. Its ACT-series silicon ensures TTL-level input compatibility and CMOS-level power efficiency, with propagation delay symmetry (tPLH ≈ tPHL) critical for timing-critical bus hold and data capture applications.

It uses RCA Advanced CMOS process technology with SCR-latchup resistance, supports simultaneous switching of multiple outputs without excessive ground bounce (VOHV ≥ 4 V, VOLP ≤ 1 V at 5 V), and maintains stable 3-state high-impedance behavior across −55°C to +125°C operating range - verified per MIL-PRF-38535 Class B requirements for military-grade variants.

Key Specifications

Pinout & Package

CD74ACT541M96G4 is housed in a 20-pin SOIC (DW) package measuring 12.8 mm × 10.3 mm (including pins), with body size 12.8 mm × 7.5 mm. Pin 1 is located in Quadrant Q1 per tape-and-reel orientation standard.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar octal 3-state buffer applications.

Compared with CD74ACT541M96 and SN74ACT541N, the CD74ACT541M96G4 offers identical performance in a RoHS-compliant SOIC package optimized for automated SMT production and extended-temperature reliability - making it the preferred choice for volume manufacturing in harsh environments.

Availability

CD74ACT541M96G4 is available at Aetrix Electronics and suitable for industrial automation, avionics signal routing, and high-reliability embedded computing requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for CD74ACT541M96G4 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 delivering analog and embedded processing solutions, with over 90 years of innovation in precision logic, power management, and signal chain technologies.

The CD74ACT541M96G4 belongs to TI's Advanced CMOS Logic family, engineered specifically for high-speed, low-power bus interfacing in mission-critical systems where timing predictability, latch-up immunity, and extended-temperature operation are essential.

FAQ

What is the maximum operating temperature for CD74ACT541M96G4?

The CD74ACT541M96G4 is rated for continuous operation from −55°C to +125°C, meeting extended industrial and military-grade environmental requirements. This specification is validated per the manufacturer's recommended operating conditions table and applies to the SOIC-20 (DW) package variant shipped as CD74ACT541M96G4. Thermal derating is not required within this range when mounted per JEDEC standards.

Does CD74ACT541M96G4 support 3.3-V logic inputs?

No - CD74ACT541M96G4 is an ACT-series device with TTL-compatible input thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V), designed for 5-V systems. While it may function with 3.3-V inputs under some conditions, TI does not guarantee correct logic interpretation below 2.0 V for high-level signals. For 3.3-V interfaces, use AC-series variants like CD74AC541M96 or level-shifting solutions.

What is the purpose of the !MR (Master Reset) pin on CD74ACT541M96G4?

The !MR pin on CD74ACT541M96G4 is an asynchronous active-low master reset that forces all eight outputs into high-impedance state regardless of OE1/OE2 status. It provides system-level fault recovery and safe power-up sequencing. When held high, !MR has no effect; when pulled low, it overrides all output enables and prevents bus contention during initialization or error conditions.

Can CD74ACT541M96G4 drive 75-Ω coaxial cables?

CD74ACT541M96G4 is characterized for 50-Ω transmission-line driving at +85°C and 75-Ω at +125°C per datasheet Section 4.5 footnote (2). While it can drive 75-Ω loads, signal integrity margins (ringing, rise time degradation) increase above 50 Ω. For reliable 75-Ω operation, verify waveform fidelity at target frequency and temperature using the device's VOHV/VOLP specs and actual board layout parasitics.

Is CD74ACT541M96G4 pin-compatible with CD74AC541M96?

Yes - CD74ACT541M96G4 and CD74AC541M96 share identical pinout, package (SOIC-20 DW), and functional block diagram. However, they differ electrically: CD74ACT541M96G4 requires 4.5–5.5 V and supports TTL input levels, whereas CD74AC541M96 operates from 1.5–5.5 V with CMOS input thresholds. Swapping them requires verifying supply voltage and source logic family compatibility.