LTC4301L
PRODUCTIONHot Swappable 2-Wire Bus Buffer with Low Voltage Level Translation
- Part Models
- 8
- 1ku List Price
- Starting From $3.14
Overview
- 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
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
Documentation
Data Sheet 1
Reliability Data 1
Video 2
Product Selector Card 2
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LTC4301LCDD#PBF | 8-Lead DFN (3mm x 3mm x 0.75mm w/ EP) | ||
| LTC4301LCDD#TRPBF | 8-Lead DFN (3mm x 3mm x 0.75mm w/ EP) | ||
| LTC4301LCMS8#PBF | 8-Lead MSOP | ||
| LTC4301LCMS8#TRPBF | 8-Lead MSOP | ||
| LTC4301LIDD#PBF | 8-Lead DFN (3mm x 3mm x 0.75mm w/ EP) | ||
| LTC4301LIDD#TRPBF | 8-Lead DFN (3mm x 3mm x 0.75mm w/ EP) | ||
| LTC4301LIMS8#PBF | 8-Lead MSOP | ||
| LTC4301LIMS8#TRPBF | 8-Lead MSOP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Feb 3, 2020 - 20_0128 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 | |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Interface Transceivers 1 | ||
| LTM2883 | PRODUCTION | SPI/Digital or I2C μModule Isolator with Adjustable ±12.5V and 5V Regulated Power |