LTC4308CMS8#TRPBF

LTC4308CMS8#TRPBF

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LTC4308CMS8#TRPBF
IC ACCELERATOR I2C HOTSWAP 8MSOP
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$1.04

Price update:a months ago
Available in stock: 899
45
Serves customers in 45 countries
1000+
Worldwide Manufacturers
$140M
$140M Growth in 5 Years
50.0M+
50M Parts Shipped in 5 Years
Analog Devices Inc.

Analog Devices Inc.

Analog Devices (NASDAQ: ADI) leads in crafting high-performance analog, mixed-signal, and digital signal processing integrated circuits. For decades, they've tackled signal processing challenges across global electronics. With over 100,000 clients, their products convert real-world phenomena into electrical signals. Merged with Maxim Integrated, they offer top-tier mixed-signal and power management technologies, solving complex problems from DC to 100 GHz and sensor to cloud.

View All Product from Analog Devices Inc.
LTC4308CMS8#TRPBF Products

The LTC4308CMS8 hot swappable, 2-wire bus buffer allows I/O card insertion into a live backplane without corruption of the data and clock busses. The LTC4308CMS8 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 LTC4308CMS8 will automatically break the Input-Output connection. At this time the LTC4308CMS8 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 LTC4308CMS8 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.

Feature

  • 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

Applications

  • Live Board Insertion
  • Servers
  • Capacitance Buffer/Bus Extender
  • RAID Systems
  • ATCA

Product Attributes

TYPE DESCRIPTION Select all
Applications I²C - Hotswap
Mounting Type Surface Mount
Type Buffer, Accelerator
Operating Temperature 0°C ~ 70°C
Product Status Active
Current - Supply 7mA
Package Tape & Reel (TR)
Voltage - Supply 2.3V ~ 5.5V
Capacitance - Input 10 pF
Number of Channels 2
Data Rate (Max) 400kHz
Output 2-Wire Bus
Supplier Device Package 8-MSOP
Input 2-Wire Bus
Package / Case 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

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$1.04

Price update:a months ago
Available in stock: 899
Analog Devices Inc.

Analog Devices Inc.

Analog Devices (NASDAQ: ADI) leads in crafting high-performance analog, mixed-signal, and digital signal processing integrated circuits. For decades, they've tackled signal processing challenges across global electronics. With over 100,000 clients, their products convert real-world phenomena into electrical signals. Merged with Maxim Integrated, they offer top-tier mixed-signal and power management technologies, solving complex problems from DC to 100 GHz and sensor to cloud.

View All Product from Analog Devices Inc.

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