LTC4317
PRODUCTIONDual I2C/SMBus Address Translator
- Part Models
- 4
- 1ku List Price
- Starting From $2.13
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
Documentation
Data Sheet 1
Reliability Data 1
Video 1
Product Selector Card 3
Webcast 1
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) | ||
| LTC4317CDHC#TRPBF | 16-Lead DFN (5mm x 3mm w/ EP) | ||
| LTC4317IDHC#PBF | 16-Lead DFN (5mm x 3mm w/ EP) | ||
| LTC4317IDHC#TRPBF | 16-Lead DFN (5mm x 3mm w/ EP) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Feb 14, 2025 - 25_0016 Bond Wire Change from Gold to Copper Wire (Notification Only) |
||
| LTC4317CDHC#PBF | PRODUCTION | |
| LTC4317CDHC#TRPBF | PRODUCTION | |
| LTC4317IDHC#PBF | PRODUCTION | |
| LTC4317IDHC#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.