LTC4300-1CMS8#TRPBF

Signal Buffers, Repeaters, Splitters Overview

The LTC4300-1CMS8#TRPBF is a hot swappable 2-wire bus buffer manufactured by Analog Devices Inc. It supports bidirectional buffering for SDA and SCL lines, isolating backplane and card capacitances during live insertion. The device operates with a supply voltage range of 2.7V to 5.5V and supports data rates up to 400kHz. It features a CMOS threshold ENABLE input pin that forces the part into a low current mode when driven to ground. The package is an 8-lead MSOP.

Signal Buffers, Repeaters, Splitters Feature Summary

• Hot swappable 2-wire bus buffering
• Bidirectional buffering with capacitance isolation
• Rise time accelerator circuitry
• 1V precharge on SDA and SCL lines

Signal Buffers, Repeaters, Splitters Applications

• Bidirectional Buffer for SDA and SCL Lines
• Prevents SDA and SCL Corruption During Live Board Insertion
• Hot Board Insertion
• Servers
• Capacitance Buffer/Bus Extender

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the specific ordering suffix #TRPBF indicates tape and reel packaging. Confirm the 'C' suffix corresponds to the commercial temperature range of 0°C to 70°C. Ensure the component matches the 8-lead MSOP package description. Cross-reference the manufacturer part number with official Analog Devices documentation to confirm authenticity and specifications.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this component for applications requiring hot swapping of I/O cards into live backplanes without data corruption. It is suitable for systems needing bidirectional buffering of I2C or SMBus lines. Consider the rise time accelerators if weaker DC pull-up currents are desired. Verify compatibility with the system's supply voltage range of 2.7V to 5.5V.

Signal Buffers, Repeaters, Splitters Part Context

This component belongs to the LTC4300 series of hot swappable 2-wire bus buffers. The -1 variant includes an ENABLE pin and a READY output. The -2 variant replaces these with a VCC2 supply pin and an ACC input for level shifting between 3.3V and 5V systems. Both variants share similar core functionality for bus buffering and isolation.

Signal Buffers, Repeaters, Splitters Replacement Considerations

LTC4300-1IMS8#TRPBF: Industrial temperature range (-40°C to 85°C). LTC4300-2CMS8#TRPBF: Level shifting capability (3.3V to 5V) with VCC2 and ACC pins.