The TC74ACT640FT is an octal bus transceiver with three-state outputs from Toshiba Semiconductor and Storage. This device is part of the ACT series, which is known for its advanced CMOS technology, providing high-speed operation with low power consumption. It is designed for asynchronous two-way communication between data buses.

Applications

• Data bus interface in computer systems.
• Memory interfacing in embedded systems.
• Peripheral control in microcontrollers.
• Logic level translation between different voltage domains.
• Line driving for signal transmission across PCBs.

Features

• High-speed operation: Propagation delay times are minimized due to the advanced CMOS technology.
• Low power consumption: Reduces overall system power requirements.
• Three-state outputs: Allows multiple devices to share a common bus.
• Octal configuration: Provides eight channels for parallel data transfer.
• TTL compatible inputs: Ensures compatibility with TTL logic levels.
• Wide operating voltage range: Operates within a range of voltages making it suitable for different applications.

Benefits

• Improved system performance: High-speed operation enables faster data transfer rates.
• Reduced power consumption: Low power requirements lead to energy savings and longer battery life in portable devices.
• Enhanced system flexibility: Three-state outputs allow for easy bus sharing.
• Simplified system design: TTL compatibility simplifies interfacing with other TTL devices.
• Increased system reliability: Robust design ensures reliable operation in various environments.

Additional Details

The TC74ACT640FT operates with a supply voltage typically in the range of 4.5V to 5.5V. It is available in a TSSOP package, suitable for surface mount technology. The three-state outputs are controlled by an Output Enable (OE) input. When OE is low, the outputs are enabled, allowing data to pass through. When OE is high, the outputs are in a high-impedance state, effectively disconnecting the device from the bus. The device is designed to drive high capacitive loads, making it suitable for various bus configurations. The operating temperature ranges from -40°C to +85°C.