74LCXR2245SJ

Overview

The onsemi 74LCXR2245SJ is a low-voltage bidirectional transceiver featuring eight non-inverting buffers with three-state outputs. Designed for bus-oriented applications, it operates within a supply voltage range of 2.0 V to 3.6 V. The device incorporates active bus-hold circuitry on data inputs to eliminate the need for external pull-up resistors. It utilizes a 20-SOP surface-mount package and supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Provides eight non-inverting bidirectional buffers with three-state outputs for bus-oriented applications
• Integrates active bus-hold circuitry on data inputs to maintain valid logic levels without external components
• Features 5V tolerant inputs and outputs compatible with mixed 2.5V and 3.3V systems

Applications

• Bus-oriented system interconnects
• Mixed voltage domain signal translation between 2.5V and 3.3V logic families
• Bidirectional data buffering in embedded architectures

Procurement Notes

Verify component authenticity through authorized distribution channels due to potential availability constraints. Confirm RoHS compliance status via official manufacturer documentation prior to integration. Ensure packaging specifications match design requirements as this specific suffix may indicate tube packaging. Validate pinout compatibility during schematic review to prevent installation errors.

Selection Notes

Select this component when bidirectional data flow control is required alongside voltage level shifting capabilities. The integrated bus-hold feature simplifies board layout by removing external pull-up resistors. Verify that the 20-SOP package dimensions fit the target PCB footprint. Ensure the operating voltage range aligns with the system's power supply rails to guarantee reliable switching performance.

Part Context

This part belongs to the 74LCX family of low-voltage CMOS logic devices manufactured by onsemi. It serves as a bidirectional transceiver variant within the broader 74LCX series, which focuses on high-speed operation at reduced supply voltages. The device complements other logic ICs by providing interface buffering between different voltage domains in modern electronic systems.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.