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AR1010-I

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Microchip Tech Touch Screen Controllers, SOIC-20-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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AR1010-I

Microchip Tech · Touch Screen Controllers · SOIC-20-300mil

AR1010-I from Microchip Tech, in a SOIC-20-300mil. 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 VDD power_in Supply voltage input; the datasheet gives an operating voltage of 2.5-5.0V ±5%.
2 M1 input Communication selection input; the datasheet's interface sections give conflicting VSS/VDD levels for I2C, SPI and UART.
3 SY- passive Sense Y- line for 8-wire sensors; tie to VSS if not used.
4 M2 input Sensor selection input: VSS selects 4/8-wire sensor operation and VDD selects 5-wire operation.
5 WAKE bidirectional Touch wake-up and touch detection pin; the application circuit requires a 20 KΩ resistor between WAKE and X-.
6 SIQ output LED drive or SPI interrupt output; it is asserted high when data is available and must be left as a no connect if not used, not tied to VDD or VSS.
7 SY+ passive Sense Y+ line for 8-wire sensors; tie to VSS if not used.
8 SS input SPI slave select input, active at VSS and inactive at VDD; tie to VSS if not used.
9 SDO output SPI serial data output or I2C data-ready interrupt; it goes high-impedance in the SPI inactive state and must be tied to VSS for UART.
10 NC unconnected No connection; may be left unconnected or tied to VSS or VDD.
11 SCK/SCL/TX bidirectional SPI/I2C serial clock or UART transmit; the I2C clock is open-drain and requires a 2.2 K to 10 K pull-up to VDD.
12 NC unconnected No connection; may be left unconnected or tied to VSS or VDD.
13 SDI/SDA/RX bidirectional I2C serial data (open-drain, requires a 2.2 K to 10 K pull-up to VDD), SPI serial data input, or UART receive.
14 SX+ passive Sense X+ line for 8-wire sensors; tie to VSS if not used.
15 Y+ passive Y+ drive connection to the touch sensor.
16 Y- passive Y- drive connection to the touch sensor.
17 5WSX- passive 5-wire sense connection, or X- sense for 8-wire sensors; tie to VSS if not used.
18 X+ passive X+ drive connection to the touch sensor.
19 X- passive X- drive connection to the touch sensor; the WAKE resistor connects to this pin.
20 VSS power_in Supply ground.

Key specifications

Parameter Value
Manufacturer Microchip Tech
Package SOIC-20-300mil
Category Data Converters
Pins 20

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Operating voltage VDD VDD 2.5 5.25 V Operating voltage range 46
Voltage on VDD with respect to VSS VDD -0.3 6.5 V With respect to VSS 45
Voltage on all other pins with respect to VSS -0.3 V Maximum is VDD + 0.3V 45
Ambient temperature under bias -40 125 °C Under bias 45
Storage temperature -65 150 °C 45
Total power dissipation 800 mW 45
Maximum current out of VSS pin 300 mA 45
Maximum current into VDD pin 250 mA 45
Input clamp current 20 mA VI < 0 or VI > VDD 45
Maximum output current sunk by any I/O pin 25 mA 45
Maximum output current sourced by any I/O pin 25 mA 45
Standby current 85 125 µA 5V 1
Standby current 40 60 µA 2.5V 1
Operating no touch current 3 mA 1
Operating touch current 17 mA With a touch sensor having 200 layers; actual current depends on the touch sensor used 1
Touch sensor time constant 500 µs 1
Touch resolution 10 bit 10-bit resolution 1
I2C SCL/SDA pull-up resistor 2.2 10 kΩ Pull-up from SCL/SDA to VDD; typically 2.2 K to 10 K 14

CAD (KiCad official)

  • Symbol: AR1010-I
  • Footprint: Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm
  • 3D model: SOIC-20-300mil (KiCad packages3D, STEP)
  • 3D model files: ar1010-i-etched.step / ar1010-i-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ar1010-i.step / ar1010-i.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Microchip Tech datasheet (61 pp, sha256 982b49fcbf925435, retrieved 2026-10-28, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (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).

Datasheet PDF