LTC4303IMS8#PBF Serial Bus Buffers, Extenders, and Accelerators by Analog Devices

Status: Production
Series: LTC4303
RoHS: Compliant
Download Datasheet Visit Manufacturer Site View Pricing & Stock

The LTC4303 hot swappable 2-wire Bus Buffer allows I/O card insertion into a live backplane without corruption of the data and clock busses. When a connection is made, the LTC4303 provides bidirectional buffering, keeping the backplane and card capacitances isolated. If SDAOUT or SCLOUT is low for ≥ 30ms (typ), the LTC4303 automatically breaks the data and clock bus connection. At this time the LTC4303 automatically generates up to 16 clock pulses on SCLOUT in an attempt to free the bus. A connection will be enabled automatically when the bus becomes free.Rise-time accelerator circuitry allows the use of larger pull-up resistors while still meeting rise-time requirements. During insertion, the SDA and SCL lines are precharged to 1V to minimize bus disturbances. When driven high, ENABLE allows the LTC4303 to connect after a stop bit or bus idle occurs. Driving ENABLE low breaks the connection between SDAIN and SDAOUT, SCLIN and SCLOUT. READY is an open drain output that indicates when the backplane and card sides are connected together.

Where to Buy

Prices starting from US$4.64

Distributor Stock
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Newark Electronics
from US$5.23
56
in stock
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Logo for element14 Singapore
element14
from US$5.51
56
in stock
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Farnell
from US$5.07
56
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Richardson RFPD
from US$4.64
0
in stock
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Features

Automatic Disconnect of SDA/SCL Lines when Bus is Stuck Low for ≥ 30ms
Recovers Stuck Busses with Automatic Clocking*
Bidirectional Buffer* for SDA and SCL Lines Increases Fanout
Prevents SDA and SCL Corruption During Live Board Insertion and Removal from Backplane
Pin Compatible with LTC4300A-1
±15kV Human Body Model ESD Protection
Isolates Input SDA and SCL Lines from Output
Compatible with I2C™, I2C Fast-Mode and SMBus Standards (Up to 400kHz Operation)
READY Open Drain Output
1V Precharge on All SDA and SCL Lines
High Impedance SDA, SCL Pins for VCC = 0V
ENABLE Gates Connection from Input to Output
MSOP 8-Pin and DFN (3mm × 3mm) Packages

Last 6 months Inventory & Pricing History


Alternative Descriptions

Hot-Swap Ctrl, -40 To 85Deg C, Msop-8 | Newark Electronics
HOT-SWAP CTRL, -40 TO 85DEG C, MSOP-8 | element14
I2C Logic Buffer 3.3V/5V 8-Pin MSOP Tube | Richardson RFPD


LTC4303IMS8#PBF Semiconductors - ICs by Linear Technology

IC HOTSWAP 2WIRE BUS BUFFR 8MSOP

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Controller Applications ATCA Capacitance Buffer / Bus Extender Live Board Insertion Servers RAID Systems
Input Voltage -
Supply Voltage Min 2.7V
Supply Voltage Max 5.5V
Controller IC Case Style MSOP
No. of Pins 8Pins
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)
Internal Switch Yes
Operating Temperature Range -40°C to +85°C
Supply Voltage Range 2.7V to 5.5V

Frequently Asked Questions

Where can I find additional details, specifications and documents for a LTC4303IMS8#PBF?

Additional datasheets, footprints and schematics for LTC4303IMS8#PBF are listed on our Part Details page. You can also find images and similar parts to LTC4303IMS8#PBF on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for LTC4303IMS8#PBF on our Product Comparison page. Access via the 'View Pricing & Stock' button to view LTC4303IMS8#PBF price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does LTC4303IMS8#PBF fall under?

The LTC4303IMS8#PBF is listed under Serial Bus Buffers, Extenders, and Accelerators.

Can I view similar or alternative parts?

You can view similar parts to LTC4303IMS8#PBF when available in the Serial Bus Buffers, Extenders, and Accelerators range under the specifications section at the bottom of the details page.

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Is the LTC4303IMS8#PBF RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

Which authorised distributors for LTC4303IMS8#PBF have stock available?

Authorised distributors including Newark Electronics, element14, Farnell and Richardson RFPD have stock available or on a lead time for LTC4303IMS8#PBF.

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