74LCXH245SJ

Overview

The onsemi 74LCXH245SJ is an octal bus transceiver featuring non-inverting bidirectional buffers with three-state outputs. It operates within a supply voltage range of 2.0V to 3.6V and utilizes advanced CMOS technology for high-speed operation with low power dissipation. The device incorporates active bushold circuitry on data inputs, eliminating the need for external pull-up or pull-down resistors. It provides ±24mA output drive capability at 3.0V and includes patented noise/EMI reduction circuitry. The component is housed in a 20-lead Small Outline Package (SOP) with a width of 5.3mm.

Feature Summary

• Features active bushold circuitry on data inputs to maintain valid logic levels without external resistors
• Incorporates patented noise and EMI reduction circuitry for signal integrity
• Provides five-volt tolerant control inputs for mixed-voltage system interfacing
• Delivers high-speed bidirectional data transfer with three-state outputs

Applications

• Bus-oriented applications requiring bidirectional data communication
• Mixed-voltage systems utilizing five-volt tolerant control interfaces
• Low voltage digital circuits operating at 2.5V and 3.3V supply rails

Procurement Notes

Verify the specific package designation M20D corresponds to the required 20-lead SOP form factor. Confirm that the ordering code matches the exact suffix requirements for tape and reel availability if automated assembly is intended. Ensure compatibility with the recommended operating conditions regarding supply voltage ranges and temperature specifications before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring bidirectional data flow between buses with varying voltage levels. The inclusion of bushold functionality simplifies design by removing the necessity for external pull-up components on unused or floating lines. Consider the ±24mA drive strength for driving moderate capacitive loads while maintaining signal integrity through integrated noise suppression features.

Part Context

This device belongs to the LCXH family of low-voltage bidirectional transceivers manufactured by onsemi. It shares functional similarities with other octal bus transceivers but distinguishes itself through the integration of bushold inputs and specific noise reduction techniques. The part represents a transition from Fairchild Semiconductor nomenclature to ON Semiconductor standards, retaining core performance characteristics for low-power digital applications.

Replacement Considerations

Check for updated ordering codes due to the integration of Fairchild Semiconductor into ON Semiconductor, where underscores may be replaced by dashes. Verify pinout compatibility and electrical specifications against alternative octal bus transceivers if sourcing from different manufacturers.