LINEAR TECHNOLOGY CORPORATION
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HighRes Image • Word Document LTC4316 Data Sheet LTC4317 Data Sheet LTC4318 Data Sheet
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 softwareselect or pinselect the slave that needs addressing. The LTC431618 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 passthrough 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 10lead 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 1000piece quantities. For more information, visit www.linear.com/product/LTC4316, www.linear.com/product/LTC4317 and www.linear.com/product/LTC4318.
Allows Multiple Slaves with the Same Address to Coexist on the Same Bus Multiple Channel Options:
Single (1 Input & 1 Output) (LTC4316)
"Y" Configuration (1 Input & 2
Outputs) (LTC4317)
Dual (2 Inputs & 2 Outputs) (LTC4318)
Resistor Configurable Address
Translation
No Software Programming Required Compatible with SMBus, I²C & I²C Fast Mode
PassThrough 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
10Lead MSOP or 3mm x 3mm DFN Packages (LTC4316), 16Lead 5mm x
3mm DFN Package (LTC4317), 20Lead
4mm x 4mm QFN Package (LTC4318)
Single I²C Address Translator Allows Two Identical Slaves to Receive Different Addresses Click Photo for HighRes ImageThe 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.
John Hamburger
Tel: (408) 4321900 ext. 2419 jhamburger@linear.com
Doug Dickinson
Tel: (408) 432 1900 ext. 2233 ddickinson@linear.com
Fanny Lau
Tel: 85224280303 flau@linear.com
Angela Ao
Tel: (8610)6522 8081 angela.ao@ebacomms.com
Yoshikazu Funasaki Tel: 81352267291 yfunasaki@linear.com
Takashi Matsuda
Tel: +81332558411 linear@chugaiad.co.jp
Desiree Park
Tel: +8225656625 desiree@ezwire.com
Alice Wang
Tel: +886228974705 alice@ezwire.com
Ralf Stegmann
Tel: +49 (0) 7131923411 ralf@ezwire.com
Alan Timmins
Tel: +441252629937 alan@ezwire.com
Simona Labianca
Tel: +39 340 0571697 simona@ezwire.com
Clotilde Zeller
Tel: +33 1 4614 87 09 clotilde@ezwire.com
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