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LTC4306

Features: ·1:4 2-Wire Multiplexer/Switch· Connect SDA and SCL Lines with 2-Wire Bus Commands· Supply Independent Bidirectional Buffer for SDA and SCL Lines Increases Fan-Out· Programmable Disconnect from Stuck Bus· Compatible with I2C and SMBus Standards· Rise Time Accelerator Circuitry· SMBus Com...

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SeekIC No. : 004402563 Detail

LTC4306: Features: ·1:4 2-Wire Multiplexer/Switch· Connect SDA and SCL Lines with 2-Wire Bus Commands· Supply Independent Bidirectional Buffer for SDA and SCL Lines Increases Fan-Out· Programmable Disconnect...

LTC4306 Data Sheet

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Part Number:
LTC4306
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

·1:4 2-Wire Multiplexer/Switch
· Connect SDA and SCL Lines with 2-Wire Bus Commands
· Supply Independent Bidirectional Buffer for SDA and SCL Lines Increases Fan-Out
· Programmable Disconnect from Stuck Bus
· Compatible with I2C and SMBus Standards
· Rise Time Accelerator Circuitry
· SMBus Compatible ALERT Response Protocol
· Two General Purpose Inputs-Outputs
· Prevents SDA and SCL Corruption During Live Board Insertion and Removal from Backplane
· ±10kV Human Body Model ESD Ruggedness
· 24-Lead QFN (4mm × 5mm) and SSOP Packages


Application

·Nested Addressing
·5V/3.3V Level Translator
·Capacitance Buffer/Bus Extender


Pinout

Connection Diagram  Connection Diagram


Specifications

Supply Voltage (VCC) .............................. 0.3V to 7V
Input Voltages (ADR0, ADR1, ADR2,
ENABLE, ALERT1, ALERT2, ALERT3,
ALERT4) .................................................. 0.3V to 7V
Output Voltages (ALERT, READY) ............ 0.3V to 7V
Input/Output Voltages (SDAIN, SCLIN,
SCL1, SDA1, SCL2, SDA2, SCL3,
SDA3, SCL4, SDA4, GPIO1, GPIO2) ......... 0.3V to 7V
Output Sink Currents (SDAIN, SCLIN, SCL1-4, SDA1-4,
GPI01-2, ALERT, READY) .................................... 10mA
Operating Temperature Range
LTC4306C ............................................. 0°C to 70°C
LTC4306I.......................................... 40°C to 85°C
Storage Temperature Range
SSOP .............................................. 65°C to 150°C
QFN ................................................ 65°C to 125°C
Lead Temperature (Soldering, 10 sec)
SSOP ............................................................... 300°C


Description

The LTC®4306 is a 4-channel, 2-wire bus multiplexer with bus buffers to provide capacitive isolation between the upstream bus and downstream buses. Through software control, the LTC4306 connects the upstream 2-wire bus to any desired combination of downstream buses. Each channel can be pulled up to a supply voltage ranging from 2.2V to 5.5V, independent of the LTC4306 supply voltage. The downstream channels are also provided with ALERT1-ALERT4 inputs for fault reporting.

Programmable timeout circuitry disconnects the downstream buses if the bus is stuck low. When activated, rise time accelerators source currents into the 2-wire bus pins to reduce rise time. Driving the ENABLE pin low restores all features to their default states. Three address pins provide 27 distinct addresses.

The LTC4306 is available in 24-lead QFN (4mm × 5mm) and SSOP packages.




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