The 74LVTH543 is an octal transceiver with 3-state outputs manufactured by Fairchild Semiconductor (now ON Semiconductor). It is a high-performance, low-voltage device designed for bidirectional asynchronous communication between data buses. The 3-state outputs allow multiple devices to share a common bus.

Applications

• Bidirectional bus interface
• Data bus isolation
• Memory interfacing
• Microprocessor systems
• High-speed data transfer
• Asynchronous communication

Features

• Octal transceiver
• 3-state outputs
• Low voltage operation (3.0V to 3.6V)
• High-speed operation
• TTL compatible inputs
• Low ground bounce
• Flow-through architecture

Benefits

• Enables bidirectional communication between two data buses
• Allows multiple devices to share a common bus without contention
• High-speed performance for fast data transfer
• TTL compatible inputs simplify interfacing with older logic families
• Low ground bounce reduces noise and improves system reliability
• Flow-through architecture simplifies board layout

Technical Specifications

The 74LVTH543 operates with a supply voltage range of 3.0V to 3.6V. It features two sets of eight input/output pins, allowing for bidirectional data transfer. The direction of data flow is controlled by a direction control (DIR) input. The 3-state outputs are enabled or disabled by an output enable (OE) input. When OE is low, the outputs are enabled; when OE is high, the outputs are in a high-impedance state. The inputs are TTL compatible. The device features low ground bounce, which minimizes noise generation during switching. The propagation delay is very short. The flow-through architecture simplifies board layout by minimizing signal path lengths. It's used in applications requiring bidirectional asynchronous data transfer at high speeds.