The 74ACT125M is a high-speed CMOS QUAD BUS BUFFER (3-STATE) fabricated with silicon gate CMOS technology. Manufactured by STMicroelectronics, a leader in semiconductor solutions, this device is designed to deliver high-performance buffering with a significant reduction in power consumption compared to its TTL counterparts.

Key Features

• High Speed: The 74ACT125M offers t<sub>PD 8.5 ns (MAX.) at T<sub>A=25°C, ensuring swift data transfer and processing speeds that are essential for modern high-speed applications.
• Low Power Dissipation: With an I<sub>CC of just 4 µA (MAX.) at T<sub>A=25°C when disabled, it is an energy-efficient choice for power-sensitive designs.
• High Noise Immunity: Characterized by a V<sub>NIH of 28% V<sub>CC (MIN.) and V<sub>NIL of 12% V<sub>CC (MIN.), it provides reliable operation even in environments with significant electrical noise.
• Power-Down Protection: Inputs and outputs on the 74ACT125M are equipped with power-down protection, which prevents erroneous signals or damage when the device is powered off.
• 3-State Outputs: The inclusion of 3-state output stages makes it possible to connect multiple devices to a bus without causing contention, as outputs can be effectively 'disconnected' by placing them in a high-impedance state.
• Wide Operating Voltage Range: The device operates at a voltage range of 4.5V to 5.5V, providing flexibility in different power environments and compatibility with standard 5V systems.

Applications

The versatility of the 74ACT125M makes it suitable for a wide variety of applications, including:

• Bus-driving buffers with 3-state outputs
• Memory address drivers
• Clock drivers
• Input/output port drivers on microprocessors

Package and Quality

The 74ACT125M comes in a SO-14 (Small Outline) package, providing a compact footprint for densely packed PCBs. STMicroelectronics ensures that each device meets rigorous quality standards, providing reliable and consistent performance across the product's lifespan.