74HC240 Octal Inverting Buffer/Line Driver | 3-State Outputs | DIP-20

Description

The 74HC240 is a high-speed, silicon-gate CMOS Octal Inverting Buffer/Line Driver featuring 3-state outputs. It contains eight independent inverting buffers organized into two 4-bit groups, each controlled by separate active-LOW Output Enable (OE-bar) inputs. The device is designed to improve the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented transmitters/receivers.

The 3-state outputs are capable of driving high-capacitance bus lines, making it an excellent choice for buffering signals on a data bus. Since the buffers are inverting, the output is the logical NOT of the input. When the Output Enable inputs are HIGH, the outputs enter a high-impedance state, allowing for seamless bus sharing without signal contention.

Note: Product images are shown for reference only. The actual product may vary in appearance, manufacturer marking, or logo depending on stock availability.

Features

• Octal (8) inverting buffers
• 3-state outputs for bus-oriented systems
• Two 4-bit groups with independent active-LOW output enable controls
• High-speed CMOS (HC) technology
• Wide operating voltage range (2V to 6V)
• High noise immunity
• DIP-20 through-hole package

Benefits

• Enhances signal integrity when driving long, high-capacitance bus lines
• Flexible bus control using two separate enable groups
• Prevents electrical conflicts on shared data lines via high-impedance state
• Optimized for low-power high-performance digital systems

Applications

• Bus-Oriented Systems
• Address and Data Bus Buffering
• High-Capacitance Line Driving
• Digital Control Signal Distribution
• Peripheral Port Expansion

Package Includes

• 1 x 74HC240 Octal Inverting Buffer/Line Driver IC (DIP-20 Package)

Specifications