The TCA9546A is a quad bidirectional translating switch controlled via the I2C bus. The SCL/SDA upstream pair fans out to four downstream pairs, or channels. Any individual SCn/SDn channel or combination of channels can be selected, determined by the contents of the programmable control register. An active-low reset (RESET) input allows the TCA9546A to recov.
•1 1-of-4 Bidirectional translating switches
• I2C Bus and SMBus compatible
• Active-low reset input
• Three address pins, allowing up to eight
TCA9546A devices on the I2C bus
• Channel selection via I2C Bus, in any combination
• Power-up with all switch channels deselected
• Low RON switches
• Allows voltage-level translation between
1.8-V, 2.5-V, 3.3-V, and 5-V buses
• No glitch on power-up
• Supports hot insertion
• Low standby current
• Operating power-supply voltage range of 1.65 V to
5.5 V
• 5.5 V Tolerant inputs
• 0 to 400-kHz Clock frequency
• Latch-up performance exceeds 100 mA Per JE.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | TCA9543A |
Texas Instruments |
Low Voltage 2-Channel I2C Bus Switch | |
2 | TCA9544A |
Texas Instruments |
Low Voltage 4-Channel I2C and SMBus Multiplexer | |
3 | TCA9545A |
Texas Instruments |
Low Voltage 4-channel I2C and SMbus Switch | |
4 | TCA9548A |
Texas Instruments |
Low-Voltage 8-Channel I2C Switch | |
5 | TCA9548A-Q1 |
Texas Instruments |
Automotive 8-Channel I2C Switch | |
6 | TCA9509 |
Texas Instruments |
Level-Translating I2C and SMBUS Bus Repeater | |
7 | TCA9511A |
Texas Instruments |
Hot Swappable I2C Bus and SMBus Buffer | |
8 | TCA9517 |
Texas Instruments |
Level-Shifting I2C Bus Repeater | |
9 | TCA9517A |
Texas Instruments |
Level-Shifting I2C Bus Repeater | |
10 | TCA9534 |
Texas Instruments |
Low Voltage 8-Bit I2C and SMBUS Low-Power I/O Expander | |
11 | TCA9534A |
Texas Instruments |
Low Voltage 8-Bit I2C and SMBUS Low-Power I/O Expander | |
12 | TCA9535 |
Texas Instruments |
Low Voltage 16-Bit I2C and SMBUS Low-Power I/O Expander |