component
TCA9548ARGERQ1
Public Made by Adomby adom
Texas Instruments Signal Switches, Multiplexers, Decoders, VQFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownTCA9548ARGERQ1
Texas Instruments · Signal Switches, Multiplexers, Decoders · VQFN-24-EP(4x4)
TCA9548ARGERQ1 from Texas Instruments, in a VQFN-24-EP(4x4). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | SD0 | bidirectional | Serial data 0; connect to VDPU0 through a pull-up resistor |
| 2 | SC0 | bidirectional | Serial clock 0; connect to VDPU0 through a pull-up resistor |
| 3 | SD1 | bidirectional | Serial data 1; connect to VDPU1 through a pull-up resistor |
| 4 | SC1 | bidirectional | Serial clock 1; connect to VDPU1 through a pull-up resistor |
| 5 | SD2 | bidirectional | Serial data 2; connect to VDPU2 through a pull-up resistor |
| 6 | SC2 | bidirectional | Serial clock 2; connect to VDPU2 through a pull-up resistor |
| 7 | SD3 | bidirectional | Serial data 3; connect to VDPU3 through a pull-up resistor |
| 8 | SC3 | bidirectional | Serial clock 3; connect to VDPU3 through a pull-up resistor |
| 9 | GND | power_in | Ground reference voltage |
| 10 | SD4 | bidirectional | Serial data 4; connect to VDPU4 through a pull-up resistor |
| 11 | SC4 | bidirectional | Serial clock 4; connect to VDPU4 through a pull-up resistor |
| 12 | SD5 | bidirectional | Serial data 5; connect to VDPU5 through a pull-up resistor |
| 13 | SC5 | bidirectional | Serial clock 5; connect to VDPU5 through a pull-up resistor |
| 14 | SD6 | bidirectional | Serial data 6; connect to VDPU6 through a pull-up resistor |
| 15 | SC6 | bidirectional | Serial clock 6; connect to VDPU6 through a pull-up resistor |
| 16 | SD7 | bidirectional | Serial data 7; connect to VDPU7 through a pull-up resistor |
| 17 | SC7 | bidirectional | Serial clock 7; connect to VDPU7 through a pull-up resistor |
| 18 | A2 | input | Address input 2; connect directly to VCC or ground |
| 19 | SCL | bidirectional | Serial clock bus; connect to VDPUM through a pull-up resistor |
| 20 | SDA | bidirectional | Serial data bus; connect to VDPUM through a pull-up resistor |
| 21 | VCC | power_in | Power supply voltage; operating range 1.65 V to 5.25 V |
| 22 | A0 | input | Address input 0; connect directly to VCC or ground |
| 23 | A1 | input | Address input 1; connect directly to VCC or ground |
| 24 | RESET | input | Active-low reset input; assert low minimum 6 ns to reset device and deselect all channels |
| 25 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | VQFN-24-EP(4x4) |
| Category | Logic |
| Pins | 25 |
CAD (KiCad official)
- Symbol:
TCA9548ARGERQ1 - Footprint:
Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.7x2.7mm - 3D model: VQFN-24-EP(4x4) (KiCad packages3D, STEP)
- 3D model files:
tca9548argerq1-etched.step/tca9548argerq1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tca9548argerq1.step/tca9548argerq1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (35 pp, sha256
41f9c041733f8070, retrieved 2026-09-25, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).