component
AT42QT1070-SSUR
Public Made by Adomby adom
Microchip Tech Touch Sensors, SOIC-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
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AT42QT1070-SSUR
Microchip Tech · Touch Sensors · SOIC-14
AT42QT1070-SSUR from Microchip Tech, in a SOIC-14. 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 | Positive supply pin; the device operates from 1.8 V to 5.5 V as stated in the datasheet features. |
| 2 | MODE | input | Mode selection pin: connect to Vss for Comms Mode (I2C interface) or to Vdd for Standalone Mode. |
| 3 | SDA | bidirectional | In Comms Mode this is the I2C data line (open drain); in Standalone Mode it is the open-drain output for the guard channel, and it is left open if unused. |
| 4 | RESET | input | Reset input with an internal 60 kΩ pull-up resistor; leave open if unused. |
| 5 | CHANGE | output | Open-drain CHANGE line for controlling communications flow in Comms Mode (connect to the CHANGE line); in Standalone Mode it is output OUT4 and is left open if unused. |
| 6 | SCL | output | Open-drain I2C clock in Comms Mode (connect to I2C clock); in Standalone Mode it is output OUT3 and is left open if unused. |
| 7 | KEY6 | output | Key 6 sense connection in Comms Mode; in Standalone Mode it is output OUT2 (open-drain/push-pull O/OD) and is left open if unused. |
| 8 | KEY5 | output | Key 5 sense connection in Comms Mode; in Standalone Mode it is output OUT1 (open-drain/push-pull O/OD) and is left open if unused. |
| 9 | KEY4 | output | Key 4 sense connection (push-pull output); left open if unused. |
| 10 | KEY3 | output | Key 3 sense connection (push-pull output); left open if unused. |
| 11 | KEY2 | output | Key 2 sense connection (push-pull output); left open if unused. |
| 12 | KEY1 | output | Key 1 sense connection (push-pull output); left open if unused. |
| 13 | KEY0 | output | Key 0 sense connection (push-pull output); left open if unused. |
| 14 | VSS | power_in | Ground pin for the device. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | SOIC-14 |
| Category | Sensors |
| Pins | 14 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Low input logic level (max) | Vil | 0.2 | × Vdd V | Printed as 0.2 × Vdd; Vdd = 3.3 V, Cs = 10 nF, load = 5 pF, Ta recommended range | 22 | ||
| High input logic level (min) | Vih | 0.7 | × Vdd V | Printed as 0.7 × Vdd; Vdd = 3.3 V, Cs = 10 nF, load = 5 pF, Ta recommended range | 22 | ||
| High input logic level (max) | Vih | 0.5 | V | Printed as Vdd + 0.5 V; Vdd = 3.3 V, Cs = 10 nF, load = 5 pF, Ta recommended range | 22 | ||
| Low output voltage (max) | Vol | 0.6 | V | Vdd = 3.3 V, Cs = 10 nF, load = 5 pF, Ta recommended range | 22 | ||
| High output voltage (min) | Voh | 0.7 | V | Printed as Vdd, 0.7 V; Vdd = 3.3 V, Cs = 10 nF, load = 5 pF, Ta recommended range | 22 | ||
| Input leakage current (min) | Iil | -1 | µA | Printed as ±1 µA; Vdd = 3.3 V, Cs = 10 nF, load = 5 pF | 22 | ||
| Input leakage current (max) | Iil | 1 | µA | Printed as ±1 µA; Vdd = 3.3 V, Cs = 10 nF, load = 5 pF | 22 | ||
| Supply voltage Vdd (absolute maximum, min) | Vdd | -0.5 | V | Vdd -0.5 to +6 V | 22 | ||
| Supply voltage Vdd (absolute maximum, max) | Vdd | 6 | V | Vdd -0.5 to +6 V | 22 | ||
| Max continuous pin current, any control or drive pin | -10 | 10 | mA | Printed as ±10 mA | 22 | ||
| Voltage forced onto any pin (min) | -0.5 | V | Printed as -0.5 V to (Vdd + 0.5) V | 22 | |||
| Storage temperature | -55 | 125 | °C | Printed as -55 °C to +125 °C | 22 | ||
| Operating temperature | -40 | 85 | °C | Printed as -40 °C to +85 °C | 22 | ||
| Supply voltage Vdd (recommended) | Vdd | 1.8 | 5.5 | V | Printed as +1.8 V to 5.5 V | 22 | |
| Supply ripple+noise | -25 | 25 | mV | Printed as ±25 mV | 22 | ||
| Cx load capacitance per key | Cx | 1 | 30 | pF | Per key | 22 | |
| Sample frequency | FQT | 162 | 180 | 198 | kHz | 23 | |
| I2C clock rate | FI2C | 400 | kHz | 23 | |||
| Burst modulation percentage | Fm | -8 | 8 | % | Printed as ±8 % | 23 | |
| RESET pulse width | 5 | µs | 23 | ||||
| Power-up delay to operate/calibration time | TD | 230 | ms | Printed as <230 in Typical column; can be longer if burst is very long | 23 |
CAD (KiCad official)
- Symbol:
AT42QT1070-SSUR - Footprint:
Package_SO:SOIC-14_3.9x8.7mm_P1.27mm - 3D model: SOIC-14 (KiCad packages3D, STEP)
- 3D model files:
at42qt1070-ssur-etched.step/at42qt1070-ssur-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);at42qt1070-ssur.step/at42qt1070-ssur.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (34 pp, sha256
c5342032750ad22f, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).