MC74LCX258DTG

The MC74LCX258DTG from ON Semiconductor is a versatile quad 2-input multiplexer designed for low-voltage CMOS applications. It operates efficiently within a 2.3V to 3.6V supply range, making it suitable for modern electronic systems. A key feature is its 5V tolerant inputs and outputs, enabling seamless interface capability with 5V TTL logic devices. This inverting multiplexer selects four bits of data from two sources using a select input, presenting the selected data in an inverted form at its outputs. The outputs can be placed in a high-impedance state via the Output Enable (OE) input.

With a balanced output sink and source capability of 24mA, the MC74LCX258DTG offers robust performance. It is designed for surface mounting and comes in a compact 16-TSSOP package. The operating temperature range is from -40°C to 85°C, ensuring reliability in various environmental conditions. The device also supports live insertion and withdrawal, and its IOFF specification guarantees high impedance when VCC is 0V, contributing to system stability and power management.

This multiplexer is suitable for applications requiring data selection and routing in digital circuits. Its high impedance TTL compatible inputs reduce current loading on input drivers, while TTL compatible outputs provide improved switching noise performance. The near-zero static supply current in all three logic states further contributes to reduced system power requirements. Latchup performance exceeds 500mA, indicating a high level of robustness.