LTC4308CMS8#PBF Serial Bus Buffers, Extenders, and Accelerators by Analog Devices

Status: Production
Series: LTC4308
RoHS: Compliant
Download Datasheet Visit Manufacturer Site View Pricing & Stock

The LTC4308 hot swappable, 2-wire bus buffer allows I/O card insertion into a live backplane without corruption of the data and clock busses. The LTC4308 provides bidirectional buffering, keeping the backplane and card capacitances isolated. Negative offset from output to input allows communication between output bus devices with high VOL and devices on the low voltage input side, where bus supplies can be as low as 0.9V. If SDAOUT or SCLOUT are low for 30ms, the LTC4308 will automatically break the Input-Output connection. At this time the LTC4308 automatically generates up to 16 clock pulses on SCLOUT in an attempt to free the bus. A connection will resume if the stuck bus is cleared. During insertion, the SDAOUT and SCLOUT lines are pre-charged to 1V to minimize bus disturbances. When driven high, the ENABLE input allows the LTC4308 to connect after a stop bit or bus idle condition. Driving ENABLE low breaks the connection between SDAIN and SDAOUT, SCLIN and SCLOUT. READY is an open-drain output which indicates that the backplane and card sides are connected.

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Prices starting from US$2.99

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Analog Devices
from US$2.99
372
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Newark Electronics
from US$4.36
84
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Farnell
from US$4.38
84
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Richardson RFPD
from US$3.96
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Features

Optimized for Low Voltage Systems Down to 0.9V
Bidirectional Buffer with Stuck Bus Recovery
-200mV Offset In-Out/+300mV Offset Out-In
30ms Stuck Bus Timeout
Compatible with Non-Compliant VOL I2C Devices
Prevents SDA and SCL Corruption During Live Board Insertion and Removal from Backplane
±6kV Human Body Model (HBM) ESD Protection
Isolates Input SDA and SCL Lines from Output
Compatible with I2C™, I2C Fast Mode and SMBus
READY Open-Drain Output
1V Precharge on SDAOUT and SCLOUT Lines
Small 8-Lead (3mm × 3mm × 0.75mm) DFN and 8-Lead MSOP Packages

Last 6 months Inventory & Pricing History


Alternative Descriptions

L V, Level Shifting Hot Swappa | Analog Devices
Hot-Swap Ctrl, 0 To 70Deg C, Msop-8 | Newark Electronics
HOT-SWAP CTRL, 0 TO 70DEG C, MSOP-8 | Farnell
I2C Buffer 2.5V/3.3V 8-Pin MSOP Tube | Richardson RFPD


LTC4308CMS8#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 2.3V
Supply Voltage Max 5.5V
Controller IC Case Style MSOP
No. of Pins 8Pins
Operating Temperature Min 0°C
Operating Temperature Max 70°C
Product Range -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)
Internal Switch Yes
Operating Temperature Range 0°C to +70°C
Supply Voltage Range 2.3V to 5.5V

Frequently Asked Questions

Where can I find additional details, specifications and documents for a LTC4308CMS8#PBF?

Additional datasheets, footprints and schematics for LTC4308CMS8#PBF are listed on our Part Details page. You can also find images and similar parts to LTC4308CMS8#PBF on this page.

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What category does LTC4308CMS8#PBF fall under?

The LTC4308CMS8#PBF is listed under Serial Bus Buffers, Extenders, and Accelerators.

Can I view similar or alternative parts?

You can view similar parts to LTC4308CMS8#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 LTC4308CMS8#PBF RoHS compliant?

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

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Authorised distributors including Analog Devices, Newark Electronics, Farnell and Richardson RFPD have stock available or on a lead time for LTC4308CMS8#PBF.

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