LTC4301L
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LTC4301L

Hot Swappable 2-Wire Bus Buffer with Low Voltage Level Translation

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Part Details
Part Models 8
1ku List Price Starting From $2.73
Features
  • Level Translates 1V Signals to Standard 3.3V and 5V Logic Rails
  • Allows Bus Pull-Up Voltages as Low as 1V on SDAIN and SCLIN
  • Bidirectional Buffer* for SDA and SCL Lines Increases Fanout
  • Prevents SDA and SCL Corruption During Live Board Insertion and Removal from Backplane
  • Isolates Input SDA and SCL Line from Output
  • 10kV Human Body Model ESD Protection
  • Supports Clock Stretching, Arbitration and Synchronization
  • High Impedance SDA, SCL Pins for VCC = 0V
  • CS Gates Connection from Input to Output
  • Compatible with I2C, I2C Fast Mode and SMBus Standards (Up to 400kHz Operation)
  • Small 8-Pin MSOP and DFN (3mm x 3mm) Packages
Additional Details
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The LTC4301L hot swappable, 2-wire bus buffer allows I/O card insertion into a live backplane without corruption of the data and clock busses. In addition, the LTC4301L SDAIN and SCLIN pins are compatible with systems with pull-up voltages as low as 1V. Control circuitry prevents the backplane from being connected to the card until a stop bit or a bus idle is present. When the connection is made, the LTC4301L provides bidirectional buffering, keeping the backplane and card capacitances isolated.

When driven low, the CS input pin allows the part to connect after a stop bit or bus idle occurs. Driving CS high breaks the connection between SCLIN and SCLOUT and between SDAIN and SDAOUT. A logic high on READY indicates that the backplane and card sides are connected together.

The LTC4301L is offered in 8-pin DFN (3mm x 3mm) and MSOP packages.

Applications

  • Hot Board Insertion
  • Servers
  • Capacitance Buffer/Bus Extender
  • Desktop Computers
Part Models 8
1ku List Price Starting From $2.73

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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

Feb 3, 2020

- 20_0128

Laser Top Mark for 8 Lead MSOP Packages Assembled in ADPG and UTAC

LTC4301LCMS8#PBF

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LTC4301LCMS8#TRPBF

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LTC4301LIMS8#PBF

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Filter by Model

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Product Lifecycle

PCN

Feb 3, 2020

- 20_0128

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Laser Top Mark for 8 Lead MSOP Packages Assembled in ADPG and UTAC

LTC4301LCMS8#PBF

PRODUCTION

LTC4301LCMS8#TRPBF

PRODUCTION

LTC4301LIMS8#PBF

PRODUCTION

LTC4301LIMS8#TRPBF

PRODUCTION

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