STMicroelectronics

74ACT04MTR

74ACT04MTR Description

The 74ACT04MTR from STMicroelectronics is a hex inverter IC belonging to the 74ACT series, designed for high-speed logic applications. Packaged in a 14-pin SOIC and supplied in Tape & Reel (TR), it is optimized for surface-mount (SMD) assembly. Operating within a 4.5V to 5.5V supply range, it delivers low-power CMOS performance with TTL-compatible input thresholds (0.8V low, 2V high). With a max propagation delay of 9ns @ 5V, 50pF, it ensures rapid signal inversion, making it suitable for timing-critical designs. The device features six independent inverters (1 input each) and supports 24mA output drive current, enabling robust signal buffering.

74ACT04MTR Features

• High-Speed Operation: 9ns propagation delay ensures minimal signal distortion in fast digital systems.
• Low Power Consumption: Quiescent current ≤2µA reduces energy usage in battery-powered applications.
• Balanced Output Drive: 24mA sink/source current for driving capacitive loads or multiple gates.
• Wide Voltage Range: 4.5V–5.5V compatibility suits 5V logic environments.
• Robust Packaging: 14-SOIC (Tape & Reel) for automated PCB assembly and space efficiency.
• Compliance: ROHS3, REACH Unaffected, and MSL1 (Unlimited shelf life) for environmental and handling reliability.

74ACT04MTR Applications

• Clock Signal Conditioning: Inverts clock edges in microcontrollers and FPGAs.
• Logic Level Shifting: Interfaces between TTL and CMOS systems.
• Waveform Generation: Used in oscillator circuits for square-wave outputs.
• Bus Buffering: Isolates and strengthens signals in data buses.
• Power-Sensitive Designs: Ideal for portable electronics due to low quiescent current.

Conclusion of 74ACT04MTR

The 74ACT04MTR excels in high-speed, low-power digital systems, offering TTL compatibility, strong drive capability, and reliable performance. Though marked obsolete, its low noise immunity and fast switching make it a legacy choice for timing-critical and interface applications. Engineers value its compact SMD footprint and energy efficiency, particularly in embedded systems and communication hardware. For modern replacements, verify pin-compatible alternatives while retaining ACT-series benefits.