STMicroelectronics 74LCX16240TTR Low Voltage 16-Bit Inverting Buffer/Line Driver

The 74LCX16240TTR from STMicroelectronics is a high-performance, low-voltage 16-bit inverting buffer/line driver designed to facilitate communication and signal distribution within a digital system. This integrated circuit (IC) is part of the LCX family, which is characterized by its 5V tolerant inputs and outputs, making it compatible with mixed-voltage environments and allowing for interfacing with 5V logic levels while operating at a lower voltage level.

With its bidirectional interface capability, the 74LCX16240TTR can be used as either a buffer or a line driver, providing flexibility in its application. The device is suitable for driving heavily loaded outputs with high fan-out requirements, ensuring signal integrity even in demanding situations.

Key features of the 74LCX16240TTR include:

• Low Voltage Operation: The device operates at a nominal voltage of 3.3V, which reduces power consumption and is ideal for battery-operated and power-sensitive applications.
• 5V Tolerant Inputs and Outputs: Inputs and outputs can interface with 5V signals without sustaining damage, providing a bridge between different voltage domains.
• High Drive: With an output drive capability of ±24 mA at 3.0V, the IC can drive multiple loads simultaneously.
• Power-Down High Impedance Inputs and Outputs: This feature ensures that the device does not load the bus when powered down.
• Support for Live Insertion and Withdrawal: The IC can be inserted or removed from a live backplane without causing glitches or disrupting the operation of the existing circuit.
• Low Quiescent Current: The IC has a significantly low idle power consumption, which is crucial for energy efficiency.

The 74LCX16240TTR comes in a TSSOP48 package, which is surface-mountable and suitable for automated assembly processes. The package is also thin and compact, saving valuable board space in dense circuit designs.

Applications for the 74LCX16240TTR are diverse and include bus interface, signal buffering, and driving for memory address and data buses, microprocessor or microcontroller buses, and other digital communication systems that require high-speed, low-power operation with level-shifting capabilities.

Overall, the STMicroelectronics 74LCX16240TTR is a versatile and efficient solution for modern digital systems requiring robust level-shifting and signal driving capabilities.