The 74VHCT240ATTR is a high-speed CMOS device from STMicroelectronics, designed to provide octal bus buffer functionality with 3-state outputs. This integrated circuit is a part of the VHCT series, which is known for its compatibility with TTL technology while offering the speed and power benefits of CMOS design.

Key Features

• High-Speed Performance: The 74VHCT240ATTR offers a fast propagation delay, enabling efficient data transfer and signal buffering in high-speed digital systems.
• Low Power Consumption: As a CMOS device, it consumes significantly less power compared to traditional TTL components, making it ideal for power-sensitive applications.
• 3-State Outputs: The octal buffers have 3-state outputs which can be put into a high impedance state, effectively disconnecting the output from the circuit. This feature is crucial for bidirectional data buses and multiplexing applications.
• Advanced Output Drive: The device is capable of driving 15 LSTTL loads, ensuring compatibility with various logic families and the ability to drive multiple inputs.
• Multiple Package Options: The 74VHCT240ATTR is available in TSSOP (Thin Shrink Small Outline Package) and other package options to suit a wide range of applications and manufacturing requirements.

Applications

The versatility of the 74VHCT240ATTR makes it suitable for a wide array of applications that require buffering and isolation of data lines, including:

• Memory buffering
• Driving bus lines in computing and telecommunication systems
• Peripheral driving for microprocessors
• Signal gating
• Input/output port expansion

Technical Specifications

The 74VHCT240ATTR operates within a supply voltage range of 4.5V to 5.5V, making it compatible with 5V systems. It has an operating temperature range from -55°C to 125°C, allowing it to perform reliably in extreme conditions. Its symmetrical output impedance ensures balanced propagation delays, and the device meets JEDEC standard no. 8-1A.

For detailed technical specifications, application notes, and support, visit the STMicroelectronics website or contact their support team. The 74VHCT240ATTR is a testament to STMicroelectronics' commitment to providing high-performance and reliable components for the electronics industry.