The 74HC2440 from Texas Instruments is a high-speed Si-gate CMOS device and is pin compatible with Low-power Schottky TTL (LSTTL). It is specified in compliance with JEDEC standard no. 7A. The 74HC2440 is an octal non-inverting buffer/line driver with 3-state outputs designed to be employed as a memory address driver, clock driver, and bus-oriented transmitter/receiver.

Key Features

• Octal Non-Inverting 3-State Outputs
• High Noise Immunity Characteristic of CMOS Devices
• Outputs Can Drive Up To 15 LSTTL Loads
• Low Power Consumption: 20 µA Max ICC
• Typical tpd = 8 ns
• ±6 mA Output Drive at 5 V
• Wide Operating Voltage Range: 2 V to 6 V

Applications

The device is suitable for a wide range of applications, including:

• Memory address drivers
• Bus-oriented systems
• Data transmission systems
• Clock drivers

Product Description

The 74HC2440 is designed for high-capacitance load drive capability, while providing low-capacitance drive to reduce the loading effect on data bus lines when used as a bus driver. The three-state control gate is a 2-input AND gate with active-low inputs so that if either output-enable (OE1 or OE2) input is high, the affected outputs will be in a high-impedance state.

The device contains eight independent buffers with 3-state outputs, each capable of driving high-capacitance loads or low-resistance loads to ground or Vcc. This makes it an excellent choice for interfacing with bus lines in a bus-oriented system. The 74HC2440 operates over a broad voltage range and has a wide operating temperature range, making it suitable for industrial, automotive, and consumer applications.

With its robust design and high functionality, the 74HC2440 octal buffer/line driver from Texas Instruments is a reliable and versatile component for any digital logic system requiring high drive capability.