MM74HC240N, Inverting Octal 3-STATE Buffer, 5V CMOS, 20-Pin DIP

The MM74HC240N is an inverting octal 3-STATE buffer fabricated using advanced silicon-gate CMOS technology. It features high drive current outputs, enabling high-speed operation even when driving large bus capacitances. The device is organized as two independent 4-bit buffers/drivers, each with its own active-LOW enable input, allowing for flexible data management. When the enable input is LOW, the device passes inverted data from the inputs to the outputs; when the enable input is HIGH, the outputs are in a high-impedance state, effectively disconnecting them from the bus. This functionality is particularly useful in memory address driving, clock driving, and bus-oriented receiver/transmitter applications. The MM74HC240N operates over a wide power supply range and maintains low power consumption, making it a versatile choice for various digital systems. ​

Key Features:

• High-Speed CMOS Technology: Typical propagation delay of 12 ns, ensuring fast signal processing.​
• 3-STATE Outputs: Facilitates connection to system buses without interference, allowing multiple devices to share the same bus.​
• Wide Operating Voltage Range: Functions effectively between 2V and 6V, providing flexibility across various applications.​
• Low Power Consumption: Quiescent supply current of 80 µA, making it suitable for power-sensitive designs.​
• High Drive Capability: Capable of sourcing or sinking 6 mA at 5V VCC, suitable for driving standard TTL loads.​
• Input Protection: Inputs are protected from damage due to static discharge by diodes to VCC and ground.​

Additional Specifications:

• Package Type: 20-Pin PDIP
• IC type: Inverting Octal 3-STATE Buffer / Line Driver
• Mounting Style: Through Hole