LTC4317

PRODUCTION

Dual I²C/SMBus Address Translator

Part Models: 4
1ku List Price: Starting From $2.13

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Overview

Allows Multiple Slaves with the Same Address to Coexist on the Same Bus
Resistor Configurable Address Translation
No Software Programming Required
Compatible with SMBus, I²C and I²C Fast Mode
Pass-Through Mode Allows General Call Addressing
±4kV HBM ESD Ruggedness

Level Translation for 2.5V, 3.3V and 5V Buses
Stuck Bus Timeout
Prevents SDA and SCL Corruption During Live Board Insertion and Removal
Support Bus Hot Swap^™
16-Lead DFN 5mm × 3mm Package

The LTC4317 enables the hardwired address of one or more I²C or SMBus slave device to be translated to a different address. This allows slaves with the same hardwired address to coexist on the same bus. Only discrete resistors are needed to select the new address and no software programming is required. Up to 127 different address translations are available.

The LTC4317 incorporates a pass-through mode which disables the address translation and allows general call addressing by the master. The LTC4317 is designed to automatically recover from abnormal bus conditions like bus stuck low or premature STOP bits.

The LTC4317 has two output channels for two different sets of slaves. The input channels are tied together to a common set of pins to reduce the pin count and package size.


Part Number	Number of Input Channels	Number of Output Channels
LTC4316	1	1
LTC4317	1	2
LTC4318	2	2

Applications

I²C, SMBus Address Expansion
Address Translation
Servers
Telecom

Part Models: 4
1ku List Price: Starting From $2.13

Documentation

Data Sheet 1

LTC4317: Dual I2C/SMBus Address Translator Data Sheet 10/20/2015

Reliability Data 1

R527 Reliability Data 03/26/2018

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
LTC4317CDHC#PBF	16-Lead DFN (5mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4317CDHC#TRPBF	16-Lead DFN (5mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4317IDHC#PBF	16-Lead DFN (5mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4317IDHC#TRPBF	16-Lead DFN (5mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Feb 14, 2025 - 25_0016 Bond Wire Change from Gold to Copper Wire (Notification Only)
		PCN25_0016_Form Material_Report Qualification Results Summary
LTC4317CDHC#PBF	PRODUCTION
LTC4317CDHC#TRPBF	PRODUCTION
LTC4317IDHC#PBF	PRODUCTION
LTC4317IDHC#TRPBF	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Hardware Ecosystem

Parts	Product Life Cycle	Description
Level Translators & Buffers 2
LTC4316	PRODUCTION	Single I²C/SMBus Address Translator
LTC4318	PRODUCTION	Dual I2C/SMBus Address Translator

LTC4317

Overview

Documentation

Data Sheet 1

Reliability Data 1

Video 1

Product Selector Card 3

Webcast 1

Hardware Ecosystem

Tools & Simulations

Design Tool 1

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