SN74LVC257AQPWRQ1 - Automotive Grade Quad 2-Input Multiplexer from Texas Instruments

The SN74LVC257AQPWRQ1 is a high-performance, automotive-grade integrated circuit designed and manufactured by Texas Instruments. This device features a quad 2-input multiplexer with 3-state outputs and is specifically engineered to meet the rigorous standards of the automotive industry. It operates from a 2.7-V to 3.6-V V<sub>CC supply, making it suitable for interfacing with 3.3-V logic in modern automotive applications.

Each multiplexer has two inputs (A and B), an output (Y), and a common select input (S). The select input determines which of the inputs A or B is connected to the output Y. When the output-enable (OE) input is low, the selected input is passed to the output. If OE is high, the output is in the high-impedance state, which effectively disconnects the output from the circuit, allowing for bus-oriented applications.

The SN74LVC257AQPWRQ1 is designed with the LVC (Low-Voltage CMOS) technology, which provides a robust interface capability, high drive strength, and low static and dynamic power consumption. The device's inputs can handle 5-V signals, even when operating at a V<sub>CC as low as 2.7 V, providing a high degree of flexibility in mixed-voltage systems.

For automotive applications where reliability is paramount, the SN74LVC257AQPWRQ1 is qualified for use in harsh environments. It is compliant with the AEC-Q100 standards, ensuring that it can withstand the temperature variations, mechanical shocks, and other stressors typically encountered in automotive settings.

This multiplexer is available in a TSSOP (Thin Shrink Small Outline Package) with the orderable part number SN74LVC257AQPWRQ1, ensuring a compact footprint on printed circuit boards, which is critical for space-constrained automotive applications.

In summary, the SN74LVC257AQPWRQ1 from Texas Instruments is a versatile, reliable, and high-performance solution for multiplexing needs in automotive electronics. Its compliance with automotive standards and compatibility with low-voltage operation make it an excellent choice for designers looking to create robust, efficient, and space-saving systems in modern vehicles.