74LS540 DIP-20 Octal Inverting Buffer IC (3-State Outputs, TTL, 5V)
Description -
The 74LS540 DIP is a TTL logic integrated circuit that functions as an octal inverting buffer and line driver in a 20-pin Dual Inline Package (DIP). It belongs to the 74LS Low Power Schottky logic family and is designed for signal buffering, bus interfacing, memory addressing, and digital communication applications.
The device contains eight independent inverting buffers with 3-state outputs, providing high-current drive capability for digital signals. The outputs are controlled by dual active LOW enable inputs, allowing the outputs to enter a high-impedance state for efficient data bus sharing in microprocessor and memory systems.
Key Features -
• Octal inverting buffer and line driver
• 3-state outputs for bus interfacing
• Dual active LOW output enable inputs
• High-current output drive capability
• Low Power Schottky technology
• TTL compatible logic levels
• High-speed switching performance
• Standard DIP-20 package
Specifications -
• Product type - TTL Logic IC
• IC Model - 74LS540
• Equivalent IC - 74540
• Logic Function - Octal Inverting Buffer
• Package type - DIP-20
• Logic family - 74LS TTL
• Operating voltage - 4.75V to 5.25V DC
• Number of buffers - 8
• Output type - 3-State Inverting Outputs
• Enable type - Dual Active LOW
• Operating temperature - 0C to 70C
Applications -
• Data bus buffering
• Memory interfacing
• Signal buffering
• Line driving
• Embedded systems
• Microprocessor systems
• Industrial automation
• Digital communication circuits