SN74LVC1G3157

The SN74LVC1G3157 is a single high-speed CMOS 2:1 multiplexer/demultiplexer designed for low-voltage applications, manufactured by Texas Instruments. It features a dual-channel configuration that allows selection between two input signals and routing them to a common output, or vice versa in demultiplexing mode. The device operates with a supply voltage range from 1.65 V to 5.5 V, making it suitable for both low-power and mixed-voltage systems. This IC includes a control input (S) that selects one of the two data inputs (A or B), directing it to the output (Y). When the enable pin (E) is active low, the device functions normally; otherwise, the output is disabled and goes into a high-impedance state. This feature provides efficient signal isolation and prevents unwanted signal propagation when the device is inactive. The device supports switching speeds up to 100 MHz at 3.3 V, ensuring fast and reliable signal routing in high-frequency applications. Designed with CMOS technology, the SN74LVC1G3157 offers low static power consumption, typically less than 1 μA at 5 V, which makes it ideal for battery-powered and portable electronics. Its logic levels are compatible with LVTTL, LVCMOS, and other low-voltage standards, enhancing flexibility in system integration. The package is available in a compact SOT-23-5 surface-mount form factor, minimizing board space requirements while maintaining robust electrical performance. Common applications include data routing in microcontroller-based systems, signal selection in test equipment, and interfacing between different voltage domains in consumer electronics, industrial controls, and automotive systems. It is also used in memory address multiplexing, sensor signal routing, and as a configurable switch in communication modules where low jitter and minimal signal distortion are critical. The device is characterized for operation over a temperature range of –40°C to +85°C, ensuring reliability in harsh environments. It meets ESD protection standards of ±2 kV HBM, providing resilience against electrostatic discharge during handling and deployment. With its low on-resistance (typically 10 Ω), excellent crosstalk suppression, and full compatibility with industry-standard logic families, the SN74LVC1G3157 delivers dependable performance across diverse electronic designs.