LTC4302CMS-1#PBF

Signal Buffers, Repeaters, Splitters Overview

The LTC4302CMS-1#PBF is an addressable I²C bus and SMBus compatible buffer designed for live board insertion. It maintains electrical isolation between the backplane and peripheral card until VCC supply is valid and addressed. The device supports supply voltages from 2.7V to 5.5V, operates within a commercial temperature range of 0°C to 70°C, and features a 10-lead MSOP package. It provides 32 unique addresses via an ADDRESS pin resistive divider, includes two general-purpose I/Os, and utilizes rise time accelerator circuitry with 1V precharge to minimize bus disturbances during connection.

Signal Buffers, Repeaters, Splitters Feature Summary

• Enables safe insertion and removal of peripheral boards into live backplanes without bus corruption
• Provides bidirectional buffering for SDA and SCL lines while maintaining electrical isolation
• Configures 32 unique addresses using a single ADDRESS pin with external resistive divider
• Includes two general-purpose input/output pins configurable as inputs or outputs

Signal Buffers, Repeaters, Splitters Applications

• Live board insertion systems
• Servers requiring hot-swappable modules
• Capacitance buffering and bus extension
• Nested addressing architectures

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the specific suffix CMS-1#PBF against official Analog Devices documentation to confirm the commercial temperature grade and lead-free packaging status. Ensure the ordering information matches the required 10-lead MSOP package configuration before finalizing procurement.

Signal Buffers, Repeaters, Splitters Selection Notes

Select the LTC4302CMS-1 variant for applications operating within the 0°C to 70°C commercial temperature range. Choose this part when two general-purpose I/O pins are required for system control or status indication alongside the bus buffering function.

Signal Buffers, Repeaters, Splitters Part Context

This component belongs to the LTC4302 family of addressable 2-wire bus buffers. It is specifically the commercial grade version (C) of the LTC4302-1 option, which retains the GPIO functionality unlike the LTC4302-2 variant that replaces one GPIO with a second supply voltage pin for level shifting.

Signal Buffers, Repeaters, Splitters Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.