74LCXH2245WM

Overview

The onsemi 74LCXH2245WM is an 8-bit non-inverting bidirectional transceiver in a 20-lead SOIC package. It operates within a supply voltage range of 2.0V to 3.6V and supports 5V tolerant control inputs. The device features active bushold circuitry on data inputs, eliminating the need for external pull-up resistors. It includes integrated series resistors on B port outputs to reduce overshoot and undershoot. Propagation delay is specified at a maximum of 7.0ns at 3.3V.

Feature Summary

• Active bushold circuitry maintains valid logic levels on unused or floating data inputs without external components
• Integrated series resistors on B port outputs mitigate signal overshoot and undershoot
• Control inputs are 5V tolerant while core logic operates at low voltages
• Outputs enter high impedance state during power down

Applications

• Bus-oriented applications requiring bidirectional data flow
• Low voltage (2.5V and 3.3V) system interconnects
• Memory bus interfaces

Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm the specific ordering code matches the required package type. Check datasheet revisions for updated electrical characteristics. Ensure environmental compliance documentation aligns with project requirements. Validate pinout compatibility before integration into existing designs.

Selection Notes

Select this component for applications requiring bidirectional data transfer between buses operating at low voltages. The bushhold feature simplifies design by removing external pull-up requirements. Verify that the 20-SOIC package fits the available PCB footprint. Consider the propagation delay specifications against system timing constraints.

Part Context

This device belongs to the LCXH family of low-voltage CMOS logic products. It provides bidirectional buffering capabilities suitable for modern electronic systems. The technology combines advanced CMOS processes with noise reduction features. It serves as a standard interface solution for connecting different voltage domains.

Replacement Considerations

MC74LCX245DWG and MC74LCX245DWR2G are listed as similar alternatives from onsemi.