News Release www.linear.com I2C Bus Address Translators Resolve Address Conflicts with No Additional Software Coding or I2C Multiplexers MILPITAS, CA – June 2, 2015 – Linear Technology Corporation introduces the LTC4316/LTC4317/LTC4318 family of I2C/SMBus address translators that enable multiple slaves with identical addresses, such as temperature sensors, to individually communicate with the master without conflicts. Address conflicts arise when slaves with the same hardwired address are placed on the same bus. Traditional solutions have used I2C multiplexers or switches to software-select or pin-select the slave that needs addressing. The LTC4316-18 are transparent solutions that replace I2C Muxes and switches. The LTC4316/LTC4317/LTC4318 do not require any software programming or ENABLE control lines, allowing masters to make direct calls to slaves using unique translated addresses that are configured by external resistors. The address translators provide simple address expansion for both I2C and SMBus systems, as well as voltage level translation for 2.5V, 3.3V and 5V busses. ±4kV HBM ESD, 1V precharging, and glitch filtering of the bus pins make the address translators rugged enough for live board insertion and removal applications. A pass-through mode enables users to temporarily disable address translation and allows for general call addressing by the master. In addition, a stuck bus timer monitors if the SCL line stays low or high for more than 30ms, aborting the address translation and reconnecting the SDAIN to SDAOUT in any stuck bus situations. The LTC4316 single (1 input/1 output) is available in 10-lead 3mm x 3mm DFN and 10lead MSOP packages. The LTC4317 “Y” configuration (1 input/2 outputs) is available in a 16lead 5mm x 3mm DFN package. The LTC4318 dual (2 inputs/2 outputs) is available in a 20lead 4mm x 4mm QFN package. Offered over the commercial and industrial temperature ranges, pricing for the LTC4316, LTC4317 and LTC4318, starts at $1.45, $1.75 and $1.95 each, respectively, for 1000-piece quantities. For more information, visit www.linear.com/product/LTC4316, www.linear.com/product/LTC4317 and www.linear.com/product/LTC4318 I2C Bus Address Translators Resolve Address Conflicts with No Additional Software Coding or I2C Multiplexers page 2 Photo Caption: Single I2C Address Translator Allows Two Identical Slaves to Receive Different Addresses Summary of Features: LTC4316-18 • • • Allows Multiple Slaves with the Same Address to Coexist on the Same Bus Multiple Channel Options: o Single (1 Input & 1 Output) (LTC4316) o “Y” Configuration (1 Input & 2 Outputs) (LTC4317) o Dual (2 Inputs & 2 Outputs) (LTC4318) Resistor Configurable Address Translation No Software Programming Required Compatible with SMBus, I2C & I2C Fast Mode Pass-Through Mode Allows General Call Addressing ±4kV HBM ESD Ruggedness Level Translation for 2.5V, 3.3V & 5V Buses Stuck Bus Timeout Prevents SDA & SCL Corruption During Live Board Insertion & Removal 10-Lead MSOP or 3mm x 3mm DFN Packages (LTC4316), 16-Lead 5mm x 3mm DFN Package (LTC4317), 20-Lead 4mm x 4mm QFN Package (LTC4318) The USA list pricing shown is for budgetary use only. International prices may differ due to local duties, taxes, fees and exchange rates. About Linear Technology Linear Technology Corporation, a member of the S&P 500, has been designing, manufacturing and marketing a broad line of high performance analog integrated circuits for major companies worldwide for over three decades. The Company’s products provide an essential bridge between our analog world and the digital electronics in communications, networking, industrial, automotive, computer, medical, instrumentation, consumer, and military and aerospace systems. Linear Technology produces power management, data conversion, signal conditioning, RF and interface ICs, µModule® subsystems, and wireless sensor network products. For more information, visit www.linear.com , LT, LTC, LTM, Linear Technology, the Linear logo and µModule are registered trademarks of Linear Technology Corp. All other trademarks are the property of their respective owners. Press Contacts: North America / Worldwide UK & Nordic John Hamburger, Director Marketing Communications [email protected] Tel: 408-432-1900 ext 2419 Alan Timmins [email protected] Tel: +44-1-252-629937 Doug Dickinson, Media Relations Manager [email protected] I2C Bus Address Translators Resolve Address Conflicts with No Additional Software Coding or I2C Multiplexers page 3 Tel: 408-432-1900 ext 2233