I2C 总线缓冲器和加速器提供了电容性隔离和有源上拉，以消除当许多节点被加至一根总线时所常见的二线式总线问题；总线缓冲器通常应用于高可用性 (热插拔) 环境中或发生地址冲突的场合里。这些器件具有电平变换能力、阻塞总线恢复、6kV ESD 保护和高达 400kHz 的工作频率。(18)
| 型号 |
Bus Buffer |
Rise Time Accelerator |
Level Translation |
Comments |
Number of Supplies |
Data Rate |
Extended Temp |
Packages |
数据手册DataSheet下载 |
| LTC1694 |
no |
yes |
|
SMBus/I²C accelerator |
1 |
100 |
I |
SOT-23 |
LTC1694 |
| LTC1694-1 |
no |
yes |
|
SMBus/I²C accelerator without DC current source for parallel devices |
1 |
100 |
I |
SOT-23 |
LTC1694-1 |
| LTC4300A-1 |
yes |
yes |
3.3V/5V |
Hot swappable bus buffer with Enable input and Ready output |
1 |
400 |
I |
MSOP-8 |
LTC4300A-1 |
| LTC4300A-2 |
yes |
yes |
3.3V/5V |
Hot swappable bus buffer with level shifting between 3.3V and 5V and accelerator disable |
2 |
400 |
I |
MSOP-8 |
LTC4300A-2 |
| LTC4300A-3 |
yes |
yes |
3.3V/5V |
Hot swappable bus buffer with level shifting between 3.3V and 5V and Enable |
2 |
400 |
I |
MSOP-8, DFN-8 |
LTC4300A-3 |
| LTC4301 |
yes |
no |
3.3V/5V |
Supply independent bus buffer |
1 |
400 |
I |
MSOP-8, DFN-8 |
LTC4301 |
| LTC4301L |
yes |
no |
1V/5V |
1V compatible supply independent bus buffer |
1 |
400 |
I |
MSOP-8, DFN-8 |
LTC4301L |
| LTC4302-1 |
yes |
yes |
3.3V/5V |
I2C addressable bus buffer with two GPIOs |
1 |
400 |
I |
MSOP-10 |
LTC4302-1 |
| LTC4302-2 |
yes |
yes |
3.3V/5V |
I2C addressable bus buffer with level shifting between 3.3V and 5V and one GPIO |
2 |
400 |
I |
MSOP-10 |
LTC4302-2 |
| LTC4303 |
yes |
yes |
3.3V/5V |
Hot Swappable 2-Wire Bus Buffer with Stuck Bus Recovery |
1 |
400 |
I |
MSOP-8, DFN-8 |
LTC4303 |
| LTC4304 |
yes |
yes |
3.3V/5V |
Hot Swappable 2-Wire Bus Buffer with Stuck Bus Recovery |
1 |
400 |
I |
MSOP-10, DFN-10 |
LTC4304 |
| LTC4305 |
yes |
yes |
3.3V/5V |
2-Channel, 2-Wire Bus Multiplexer with Capacitance Buffering |
1 |
400 |
I |
SSOP-16, DFN-16 |
LTC4305 |
| LTC4306 |
yes |
yes |
3.3V/5V |
4-Channel, 2-Wire Bus Multiplexer with Capacitance Buffering |
1 |
400 |
I |
QFN-24, SSOP-24 |
LTC4306 |
| LTC4307 |
yes |
yes |
2.3V/5.5V |
Low Offset Hot Swappable 2-Wire Bus Buffer with Stuck Bus Recovery |
1 |
400 |
I |
DFN-8, MSOP-8 |
LTC4307 |
| LTC4307-1 |
yes |
yes |
2.3V/5.5V |
High Definition Multimedia Interface (HDMI) Level-Shifting 2-Wire Bus Buffer |
1 |
400 |
I |
DFN-8, MS-8 |
LTC4307-1 |
| LTC4308 |
yes |
yes |
1 to 5.5 |
Low Voltage, Level Shifting Hot Swappable 2-Wire Bus Buffer with Stuck Bus Recovery |
1 |
400 |
I |
MS-8 DFN-8 |
LTC4308 |
| LTC4309 |
yes |
yes |
2.3V/5.5V |
Level Shifting Low Offset Hot Swappable 2-Wire Bus Buffer with Stuck Bus Recovery |
2 |
400 |
I |
SSOP-16, DFN-12 |
LTC4309 |
| LTC4311 |
no |
yes |
|
Low Voltage I2C/SMBus Accelerator |
|
400 |
I |
DFN-6, SC-70 |
LTC4311 |