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Description
Demonstration circuit 2217A features the
2
I
C/SMBus address translator. The LTC4316 enables one
2
or more I
C or SMBus slave devices to translate their
hardwired address to a different address. This allows
slaves with the same 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 translations are available.
The LTC4316 has a rich set of features including:
Allowing Multiple Slaves with the Same Address to
n
Coexist on the Same Bus.
Resistor Configurable Address Translating
n
Compatibility with SMBus, I
n
Pass-Through Mode for General Call Addressing
n
Level Translation for 2.5V, 3.3V, and 5V Buses
n
Stuck Bus Timeout
n
Prevention of SDA and SCL Corruption During Live
n
Board Insertion and Removal
LTC
4316
single
®
2
2
C and I
C Fast Mode
DEMO MANUAL DC2217A
Single I
Address Translator
Support for Bus Hot Swap™
n
10-Lead MSOP or DFN 3mm × 3mm Package
n
The LTC4316 incorporates a pass-through mode which
disables the address translating and allows general call
addressing by the master. The LTC4316 is designed to
automatically recover from abnormal bus conditions like
bus stuck low or premature stop bits. There are three LTC
parts in this family with different numbers of inputs and
outputs. The part numbers are as follows:
PART NUMBER
NUMBER OF INPUT
CHANNELS
LTC4316
1
LTC4317
1
LTC4318
2
DC2217A demonstrates only the LTC4316. The other parts
provide similar functions with differences listed in their
respective data sheets.
Design files for this circuit board are available at
http://www.linear.com/demo/DC2217A
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and Hot
Swap and QuikEval are trademarks of Linear Technology Corporation. All other trademarks are
the property of their respective owners.
LTC4316
2
C/SMBus
NUMBER OF OUTPUT
CHANNELS
1
2
2
dc2217af
1
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Summary of Contents for Linear LTC4316
- Page 1 Prevention of SDA and SCL Corruption During Live http://www.linear.com/demo/DC2217A Board Insertion and Removal L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and Hot Swap and QuikEval are trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners.
- Page 2 DEMO MANUAL DC2217A Quick start proceDure dc2217af...
- Page 3 DC2217A. These incoming signals are connected to SCLIN 5V from the DC590 along with SCLIN, SDAIN bus pull up and SDAIN of the LTC4316 (U1), as well as to the SCL resistors while SCLOUT and SDAOUT will be sourced from and SDA pins of U2, an LTC2631 DAC.
- Page 4 DEMO MANUAL DC2217A Quick start proceDure QuikEval Interface PROCEDURE The DC2217A can be connected to a DC590 and used Connect the DC2217A and DC590 as shown in Figure 1. with QuikEval software. The DC590 connects to a PC Insert the USB cable into a USB port on the PC. through USB.
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Page 5: Interface Design
DEMO MANUAL DC2217A Quick start proceDure board and brings up the LTC4316 Evaluation Software of the translated output I C bus, and the address of the on board EEPROM. The 0x12 [D1] Thru LED button has Interface (Figure 2). The QuikEval software is available at: been selected and corresponds to the THRU LED on the http://www.linear.com/QuikEval... - Page 6 DEMO MANUAL DC2217A Quick start proceDure Table 3. Jumpers Table 4. LEDs NOMENCLATURE DESCRIPTION DEFAULT POSITION NOMENCLATURE DESCRIPTION ADDRESS (THRU) Selects Address of THRU (Green) Illuminates When DAC U2 is D/A U2 Addressed and Data FF is Received ADDRESS (Translated) Selects Address of TRANSLATED (Green) Illuminates When DAC U3 is...
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Page 7: Schematic Diagram
Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. - Page 8 Linear Technology Corporation (LTC) provides the enclosed product(s) under the following AS IS conditions: This demonstration board (DEMO BOARD) kit being sold or provided by Linear Technology is intended for use for ENGINEERING DEvELOPMENT OR EvALUATION PURPOSES ONLY and is not provided by LTC for commercial use. As such, the DEMO BOARD herein may not be complete in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including but not limited to product safety measures typically found in finished commercial goods.