STMicroelectronics 74LCX257TTR Multiplexer

The 74LCX257TTR from STMicroelectronics is a high-performance, quad 2-input multiplexer with 3-state outputs that belongs to the LCX family of products designed for low voltage operation. This device is ideal for voltage translation applications because it is designed to operate with a 2.3V to 3.6V VCC supply voltage but is 5V tolerant on inputs. It is particularly well-suited for implementing buffer registers, I/O ports, bidirectional bus drivers, and working memory in a wide range of digital systems.

The multiplexer's inputs include four individual 2-input multiplexers with three-state outputs that can be independently selected. The device features a control input (OE) that, when high, forces the output into a high-impedance state, allowing for bus sharing or output port isolation. The 74LCX257TTR exhibits true data output from the active multiplexer inputs, ensuring data integrity during operation.

One of the standout features of the 74LCX257TTR is its 5V tolerant inputs, which allow the use of this device in mixed-voltage environments without the need for additional level shifters. This makes it a versatile component for interfacing with both 3.3V and 5V logic levels. Additionally, the device benefits from the LCX low power consumption technology, making it suitable for battery-powered and power-sensitive applications.

The 74LCX257TTR is provided in a TSSOP package, which is optimized for enhanced thermal performance and reduced space on printed circuit boards. This packaging, combined with the low on-resistance of the switch, ensures minimal power dissipation during operation.

STMicroelectronics has designed the 74LCX257TTR with the needs of modern electronics in mind, ensuring high-speed operation while maintaining low noise. With its robust latch-up performance that exceeds 500mA, the device adheres to the JESD 78 Class II standards for latch-up performance, providing reliability and stability in your electronic designs.

In summary, the 74LCX257TTR is a versatile, high-performance multiplexer that is perfect for a range of applications where low voltage operation, low power consumption, and interface flexibility are required. Its advanced features and reliable performance make it a smart choice for designers looking to optimize their digital systems.