LTC4301L - LTC4301L是Hot Swappable 2-Wire Bus Buffer with Low Voltage Level Translation
LTC4301L是Linear公司的一款I2C 和 SMBus 总线缓冲器和加速器产品，LTC4301L是Hot Swappable 2-Wire Bus Buffer with Low Voltage Level Translation，本站介绍了LTC4301L的封装应用图解、特点和优点、功能等，并给出了与LTC4301L相关的凌力尔特元器件型号供参考。
LTC4301L - Hot Swappable 2-Wire Bus Buffer with Low Voltage Level Translation
LTC4301L - Hot Swappable 2-Wire Bus Buffer with Low Voltage Level Translation - Linear Technology（凌力尔特）
功能描述
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.
I2C is a trademark of Philips Electronics N.V.
*Patent Pending
特点
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应用
Hot Board Insertion Servers Capacitance Buffer/Bus Extender Desktop Computers以下列出了不同封装及包装形式的具体型号,并标出了直接在linear官网上订货的价格（美元）
| 器件型号 | 封装 | 温度 | 价格 (以 1 ~ 99 片为批量) | 价格 (以 1000 片为批量) |
| LTC4301LCDD | 3x3 DFN-8 | C | $3.04 | $2.15 |
| LTC4301LCDD#PBF | 3x3 DFN-8 | C | $3.04 | $2.15 |
| LTC4301LCDD#TR | 3x3 DFN-8 | C | | $2.21 |
| LTC4301LCDD#TRPBF | 3x3 DFN-8 | C | | $2.21 |
| LTC4301LCMS8 | MS-8 | C | $2.86 | $2.05 |
| LTC4301LCMS8#PBF | MS-8 | C | $2.86 | $2.05 |
| LTC4301LCMS8#TR | MS-8 | C | | $2.11 |
| LTC4301LCMS8#TRPBF | MS-8 | C | | $2.11 |
| LTC4301LIDD | 3x3 DFN-8 | I | $3.48 | $2.45 |
| LTC4301LIDD#PBF | 3x3 DFN-8 | I | $3.48 | $2.45 |
| LTC4301LIDD#TR | 3x3 DFN-8 | I | | $2.51 |
| LTC4301LIDD#TRPBF | 3x3 DFN-8 | I | | $2.51 |
| LTC4301LIMS8 | MS-8 | I | $3.30 | $2.35 |
| LTC4301LIMS8#PBF | MS-8 | I | $3.30 | $2.35 |
| LTC4301LIMS8#TR | MS-8 | I | | $2.41 |
| LTC4301LIMS8#TRPBF | MS-8 | I | | $2.41 |
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