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MPR121QR2
12ch Touch Sensor controller, UQFN-20
Schematic Symbol
Pin Configuration (20 pins)
| Pin | Name | Type |
|---|---|---|
| 1 | ~{IRQ} | open_collector |
| 2 | SCL | input |
| 3 | SDA | bidirectional |
| 4 | ADDR | input |
| 5 | VREG | passive |
| 6 | VSS | power_in |
| 7 | REXT | passive |
| 8 | ELE0 | passive |
| 9 | ELE1 | passive |
| 10 | ELE2 | passive |
| 11 | ELE3 | passive |
| 12 | LED0/ELE4 | passive |
| 13 | LED1/ELE5 | passive |
| 14 | LED2/ELE6 | passive |
| 15 | LED3/ELE7 | passive |
| 16 | LED4/ELE8 | passive |
| 17 | LED5/ELE9 | passive |
| 18 | LED6/ELE10 | passive |
| 19 | LED7/ELE11 | passive |
| 20 | VDD | power_in |
Footprint
ConfirmedPackage_DFN_QFN/UQFN-20_3x3mm_P0.4mm
Pad Layout
Pads (20)
| Number | Type |
|---|---|
| 1 | smd |
| 2 | smd |
| 3 | smd |
| 4 | smd |
| 5 | smd |
| 6 | smd |
| 7 | smd |
| 8 | smd |
| 9 | smd |
| 10 | smd |
| 11 | smd |
| 12 | smd |
| 13 | smd |
| 14 | smd |
| 15 | smd |
| 16 | smd |
| 17 | smd |
| 18 | smd |
| 19 | smd |
| 20 | smd |