LTC4316
2
Single I C/SMBus
Address Translator
FEATURES DESCRIPTION
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Allows Multiple Slaves with the Same Address to The LTC 4316 enables the hardwired address of one or
2
Coexist on the Same Bus more I C or SMBus slave devices to be translated to a
n
Resistor Configurable Address Translation different address. This allows slaves with the same hard-
n
No Software Programming Required wired address to coexist on the same bus. Only discrete
2 2
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Compatible with SMBus, I C and I C Fast Mode resistors are needed to select the new address and no
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Pass-Through Mode Allows General Call Addressing software programming is required. Up to 127 different
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4kV HBM ESD Ruggedness address translations are available.
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Level Translation for 2.5V, 3.3V and 5V Buses
The LTC4316 incorporates a pass-through mode which
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Stuck Bus Timeout
disables the address translation and allows general call
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Prevents SDA and SCL Corruption During Live Board
addressing by the master. The LTC4316 is designed to
Insertion and Removal
automatically recover from abnormal bus conditions like
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Support Bus Hot Swap
bus stuck low or premature STOP bits.
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10-Lead MSOP and DFN 3mm 3mm Packages
NUMBER OF INPUT NUMBER OF OUTPUT
PART NUMBER CHANNELS CHANNELS
APPLICATIONS
LTC4316 1 1
2
n LTC4317 1 2
I C, SMBus Address Expansion
n LTC4318 2 2
Address Translation
n
Servers
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
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Telecom
Protected by U.S. Patents, including 6356140, 6650174, 7032051, 7478286. Patent pending.
TYPICAL APPLICATION
TRANSLATES BY 0x02
START R/W ACK
3.3V 5V
BIT ADDRESS BITS BIT BIT
SENDS RECEIVES
a6 a5 a4 a3 a2 a1 a0
ADDRESS 0x34 ADDRESS 0x36
V
CC
SCLIN
SCL SCL
SCLIN SCLOUT
MASTER LTC4316 SLAVE
SDAIN 0 0 1 1 0 1 0 0 = 0x34
SDA SDAIN SDAOUT SDA
TRANSLATION
0 0 0 0 0 0 1 0 = 0x02
3.3V ENABLE READY BYTE
XORL XORH GND
SDAOUT 0 0 1 1 0 1 1 0 = 0x36
976k 182k 4316 TA01b
3.3V
4316 TA01a
4316fa
1
For more information www.linear.com/LTC4316LTC4316
ABSOLUTE MAXIMUM RATINGS (Notes 1, 2)
Input Supply Voltage V ............................. 0.3V to 6V Input/Output Voltages
CC
Input Voltages SCLIN, SCLOUT, SDAIN, SDAOUT ................ 0.3V to 6V
ENABLE ........................................................ 0.3V to 6V Operating Temperature Range
XORL, XORH ....................................0.3V to V + 0.3V LTC4316C ................................................ 0C to 70C
CC
Output Voltage LTC4316I .............................................40C to 85C
READY ......................................................... 0.3V to 6V Storage Temperature Range .................. 65C to 150C
Output Currents
READY, SDAOUT ....................................................50mA
PIN CONFIGURATION
TOP VIEW
TOP VIEW
GND 10 SCLIN
1
GND 1 10 SCLIN
XORH 2 9 SCLOUT
11 XORH 2 9 SCLOUT
XORL 3 8 SDAOUT
GND XORL 3 8 SDAOUT
V 4 7 SDAIN V 4 7 SDAIN
CC CC
ENABLE 5 6 READY
ENABLE 5 6 READY
MS PACKAGE
10-LEAD PLASTIC MSOP
DD PACKAGE
10-LEAD (3mm 3mm) PLASTIC DFN T = 150C, = 160C/W
JMAX JA
T = 150C, = 43C/W
JMAX JA
EXPOSED PAD (PIN 11) IS GND, PCB CONNECTION OPTIONAL
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC4316CDD#PBF LTC4316CDD#TRPBF LGSW 10-Lead (3mm 3mm) Plastic DFN 0C to 70C
LTC4316IDD#PBF LTC4316IDD#TRPBF LGSW 10-Lead (3mm 3mm) Plastic DFN 40C to 85C
LTC4316CMS#PBF LTC4316CMS#TRPBF LTGSV 10-Lead Plastic MSOP 0C to 70C
LTC4316IMS#PBF LTC4316IMS#TRPBF LTGSV 10-Lead Plastic MSOP 40C to 85C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
For more information on lead free part marking, go to: