LTC4305
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LTC4305

2-Channel, 2-Wire Bus Multiplexer with Capacitance Buffering

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 8
1ku List Price Starting From $3.37
Features
  • 1:2 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
  • Prevents SDA and SCL Corruption During Live Board
    Insertion and Removal from Backplane
  • ±10kV Human Body Model ESD Ruggedness
  • 16-Lead (4mm × 5mm) DFN and SSOP Packages
Additional Details
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The LTC4305 is a 2-channel, 2-wire bus multiplexer with bus buffers to provide capacitive isolation between the upstream bus and downstream buses. Through software control, the LTC4305 connects the upstream 2-wire bus to any desired combination of downstream channels. Each channel can be pulled up to a supply voltage ranging from 2.2V to 5.5V, independent of the LTC4305 supply voltage. The downstream channels are also provided with an ALERT1-ALERT2 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 LTC4305 is available in 16-lead (4mm × 5mm) DFN and SSOP packages.

Applications

  • Nested Addressing
  • 5V/3.3V Level Translator
  • Capacitance Buffer/Bus Extender
Part Models 8
1ku List Price Starting From $3.37

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Documentation

Documentation

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Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Product Lifecycle

PCN

Oct 11, 2022

- 22_0235

Epoxy Change from Henkel 8290 to 8290A for GN Package

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LTC4305IGN#PBF

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PRODUCTION

Apr 6, 2022

- 22_0066

Laser Top Mark for 16QSOP Assembled in ADPG [PNG]

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LTC4305IGN#PBF

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Filter by Model

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Part Models

Product Lifecycle

PCN

Oct 11, 2022

- 22_0235

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Epoxy Change from Henkel 8290 to 8290A for GN Package

LTC4305CGN#PBF

PRODUCTION

LTC4305CGN#TRPBF

PRODUCTION

LTC4305IGN#PBF

PRODUCTION

LTC4305IGN#TRPBF

PRODUCTION

Apr 6, 2022

- 22_0066

arrow down

Laser Top Mark for 16QSOP Assembled in ADPG [PNG]

LTC4305CGN#PBF

PRODUCTION

LTC4305CGN#TRPBF

PRODUCTION

LTC4305IGN#PBF

PRODUCTION

LTC4305IGN#TRPBF

PRODUCTION

Software & Part Ecosystem

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