# TCA9544A (Component) ## Description I2C Hub, 4 Channels, Interrupts, TSSOP-20 I2C Hub TSSOP*4.4x6.5mm*P0.65mm* ## Component Details - **Owner:** kicad-part-library - **Created:** 9/30/2024 - **Last Updated:** 9/30/2024 - **Visibility:** Public - **Datasheet URL:** http://www.ti.com/lit/ds/symlink/tca9544a.pdf - **Package or Case Code:** TSSOP-20_4.4x6.5mm_P0.65mm - **Manufacturer Name:** Texas Instruments Inc. - **Manufacturer Part Number:** TCA9544A - **Used in:** 6 projects - **Manufacturer:** Texas Instruments - **MPN:** TCA9544A - **Package / Case Code:** 20-TSSOP - **Pin Count:** 20 ## Pins | Pin | Name | Type | |-----|------|------| | 1 | A0 | | | 2 | A1 | | | 3 | A2 | | | 4 | ~{INT0} | | | 5 | SD0 | | | 6 | SC0 | | | 7 | ~{INT1} | | | 8 | SD1 | | | 9 | SC1 | | | 10 | GND | | | 11 | ~{INT2} | | | 12 | SD2 | | | 13 | SC2 | | | 14 | ~{INT3} | | | 15 | SD3 | | | 16 | SC3 | | | 17 | ~{INT} | | | 18 | SCL | | | 19 | SDA | | | 20 | VCC | | --- *Generated from [https://www.flux.ai/kicad-part-library/tca9544a](https://www.flux.ai/kicad-part-library/tca9544a)*