74LS240 DIP-20 Octal Inverting Buffer/Line Driver IC (3-State Outputs, TTL, 5V)

Description -

The 74LS240 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 bus interfacing, memory addressing, signal buffering, and line driving in high-speed digital systems.

The device contains eight inverting buffers arranged as two independent groups of four, each controlled by its own active LOW output enable input. When enabled, the outputs provide inverted logic levels, while disabling places them in a high-impedance (3-state) condition for efficient bus sharing.

Key Features -

• Octal inverting buffer and line driver

• 3-state outputs for bus interfacing

• Two independent 4-bit buffer sections

• Separate output enable control for each section

• High-current output drive capability

• Low Power Schottky technology

• TTL compatible logic levels

• Standard DIP-20 package

Specifications -

• Product type - TTL Logic IC

• IC Model - 74LS240

• Logic Function - Octal Inverting Buffer and Line Driver

• Package type - DIP-20

• Logic family - 74LS TTL

• Operating voltage - 4.75V to 5.25V DC

• Number of buffers - 8

• Output type - Inverting 3-State Outputs

• Typical propagation delay - 10ns

• High-level output current - -15mA

• Low-level output current - 24mA

• Input high voltage - 2.0V Minimum

• Operating temperature - 0C to 70C

Applications -

• Memory address buffering

• Bus interfacing

• Line driving

• Clock distribution

• Embedded systems

• Microprocessor systems

• Industrial automation

• Digital communication equipment