LTC4307CMS8-1#TRPBF

Signal Buffers, Repeaters, Splitters Overview

The LTC4307CMS8-1#TRPBF is a bidirectional 2-wire bus buffer designed for HDMI Display Data Channel (DDC) applications. It provides capacitance buffering with sub-10pF input capacitance to meet the <50pD requirement and performs level translation between 3.3V and 5V systems. The device features a READY open-drain output for hot plug detect control, ±5kV HBM ESD protection, and a typical 60mV buffer offset. It supports I²C, I²C Fast Mode, and SMBus protocols within an operating temperature range of 0°C to 70°C. The component is housed in an 8-lead MSOP package.

Signal Buffers, Repeaters, Splitters Feature Summary

• Capacitance buffering isolates internal bus capacitance from HDMI connector requirements
• Level shifting enables communication between 3.3V and 5V DDC buses
• READY output controls HDMI hot plug detect signal status

Signal Buffers, Repeaters, Splitters Applications

• HDMI receiver channels
• HDMI transmitter channels
• HDMI repeater circuits

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the specific ordering suffix #TRPBF confirms tape and reel packaging rather than tube. Confirm the CMS8 designation matches the required 8-lead MSOP package type. Ensure the absence of the -1 suffix in other contexts does not imply missing level-shifting capabilities. Cross-reference the manufacturer part number against official distributor catalogs to validate authenticity and current production status.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this variant when HDMI compliance requires strict capacitance buffering and voltage translation between 3.3V and 5V domains. The commercial temperature grade suits standard consumer electronics. Verify that the system does not require stuck bus recovery or pre-charge functions, as these are excluded from the -1 series compared to general-purpose buffers.

Signal Buffers, Repeaters, Splitters Part Context

This component belongs to the LTC4307-1 family, which is optimized specifically for HDMI applications. Unlike the standard LTC4307, it lacks stuck bus disconnect and pre-charge features but includes essential level-shifting and low capacitance buffering. It serves as a bridge for EDID communication in digital display interfaces.

Signal Buffers, Repeaters, Splitters Replacement Considerations

LTC4307IMS8-1#TRPBF offers identical functionality with an extended industrial temperature range (-40°C to 85°C). LTC4307CMS8-1#PBF provides the same electrical characteristics in tube packaging instead of tape and reel.