LTC4316IMS#PBF

Specialized Overview

The LTC4316IMS#PBF is a single-channel I2C/SMBus address translator manufactured by Analog Devices Inc. It enables hardwired addresses of slave devices to be translated via external resistors, allowing multiple slaves with identical addresses to coexist on the same bus without software programming. The device supports up to 127 different address translations and incorporates a pass-through mode for general call addressing. It features automatic recovery from abnormal bus conditions such as stuck-low or premature STOP bits. Electrical specifications include an input supply range of 2.25V to 5.5V, a maximum SCL clock frequency of 400 kHz, and a typical quiescent current of 2 mA when enabled.

Specialized Feature Summary

• Resistor-configurable address translation allows multiple slaves with identical hardwired addresses to coexist on the same bus without requiring software programming.
• Integrated hot swap support prevents SDA and SCL corruption during live board insertion and removal through internal precharge circuitry and controlled switch activation.
• Pass-through mode disables address translation to allow general call addressing by the master controller.
• Automatic recovery mechanisms handle abnormal bus conditions including stuck-low/high states and premature STOP bits.

Specialized Applications

• I2C and SMBus address expansion in complex systems
• Servers requiring multiple identical peripheral modules
• Telecommunications equipment utilizing shared bus architectures

Specialized Procurement Notes

Verify the specific suffix #PBF indicates lead-free finish and RoHS compliance. Confirm the IMS package variant corresponds to the 10-lead plastic MSOP housing suitable for surface mount applications. Ensure the 'I' grade designation matches the required -40°C to +85°C operating temperature range for your specific deployment environment.

Specialized Selection Notes

Select this component when hardware-based address shifting is preferred over software configuration. Use external resistor dividers connected to XORH and XORL pins to define the translation byte. Ensure VCC is powered by the lower of the two bus supply voltages if level translation between different voltage domains is required.

Specialized Part Context

This part belongs to the LTC4316 family of I2C address translators. Related variants include the LTC4317 (single input, dual output) and LTC4318 (dual input, dual output). The IMS#PBF suffix specifically denotes the industrial temperature grade (-40°C to +85°C) housed in a 10-lead MSOP package.

Specialized Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing bus protocols and voltage levels before considering alternative components.