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TCA9511ADGKR Breakout
I2C BUS SWITCH 2-CH 5V 8-VSSOP
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Dual-channel I2C bus switch enabling independent control of two I2C segments with active-low enable pins. Supports bus voltages up to 5.5V and typical clock frequencies to 400kHz. Ideal for systems requiring multiple isolated I2C domains, level shifting configurations, or bus arbitration in mixed-voltage designs.
Package: MSOP-8 · 8 pins
Why does this need a breakout?
The 0.65mm pitch and tiny 3×3mm form factor make hand soldering challenging and impractical for breadboard prototyping. A breakout board converts this compact SMD package into a standard header layout, enabling reliable connections and rapid iteration without specialized soldering equipment or rework risk.
Component specifications
ELECTRICAL CHARACTERISTICS
| Manufacturer | Texas Instruments |
| Part Number | TCA9511ADGKR |
| Package | MSOP-8 |
| Pin Count | 8 |
| Current - Supply | 3.5mA |
| Number of Channels | 1 |
| Type | Buffer, Accelerator |
| Voltage - Supply | 2.3V ~ 5.5V |
What's Included
BILL OF MATERIALS
- 1x TCA9511ADGKR soldered onto breakout PCB
- Pin headers pre-soldered (2.54mm / 0.1" pitch)
- All IC pins broken out to 2.54mm headers
Breakout Board Design
PCB SPECIFICATIONS