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CAP1296-1-AIA-TR

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Microchip Tech Touch Sensors, DFN-10-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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CAP1296-1-AIA-TR

Microchip Tech · Touch Sensors · DFN-10-EP(3x3)

CAP1296-1-AIA-TR from Microchip Tech, in a DFN-10-EP(3x3). 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 CS1 bidirectional Capacitive touch sensor input 1; connect to ground when unused.
2 ALERT# output Active low alert/interrupt output for SMBus alert; requires a pull-up resistor (default); open drain, connect to ground when unused.
3 SMDATA bidirectional Bi-directional open-drain SMBus or I2C data; requires a pull-up resistor.
4 SMCLK input SMBus or I2C clock input; requires a pull-up resistor.
5 VDD power_in Positive power supply, 3.0V to 5.5V per the electrical specifications.
6 CS6 bidirectional Capacitive touch sensor input 6; connect to ground when unused.
7 CS5 bidirectional Capacitive touch sensor input 5; connect to ground when unused.
8 CS4 bidirectional Capacitive touch sensor input 4; connect to ground when unused.
9 CS3 / SG bidirectional Capacitive touch sensor input 3, multiplexed with signal guard output SG; connect CS3 to ground when unused and leave SG open when unused.
10 CS2 bidirectional Capacitive touch sensor input 2; connect to ground when unused.
11 GND power_in Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Microchip Tech
Package DFN-10-EP(3x3)
Category Sensors
Pins 11

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Voltage on VDD pin -0.3 6.5 V 7
Voltage on CS pins to GND -0.3 4 V 7
Voltage on 5V tolerant pins V5VT_PIN -0.3 5.5 V 7
Voltage difference on 5V tolerant pins /V5VT_PIN - VDD/ 0 3.6 V see Note 2-2 7
Input current to any pin except VDD 10 mA 7
Package power dissipation 0.5 W up to TA = 85°C for 10-pin DFN; see Note 2-3 7
Junction to ambient JA 78 °C/W see Note 2-4 7
Operating ambient temperature range TA -40 125 °C 7
Storage temperature range -55 150 °C 7
ESD rating, all pins 8000 V HBM 7
Supply voltage VDD 3 5.5 V TA = 0°C to 85°C 8
Standby supply current, default conditions ISTBY_DEF 120 170 µA Standby state active; 1 sensor input monitored; default conditions (8 avg, 70ms cycle time) 8
Standby supply current, low power ISTBY_LP 50 µA Standby state active; 1 sensor input monitored; 1 avg, 140ms cycle time 8
Deep Sleep supply current at 3V IDSLEEP_3V 5 µA Deep Sleep state active; no communications; TA < 40°C; 3.135 < VDD < 3.465V 8
Supply current, capacitive sensing active IDD 500 750 µA Capacitive sensing active; signal guard disabled 8
Maximum base capacitance CBASE 50 pF Pad untouched 8
Minimum detectable capacitive shift CTOUCH 20 fF Pad touched - default conditions 8
Recommended capacitive shift CTOUCH 0.1 2 pF Pad touched - not tested 8
Power supply rejection PSR 3 10 counts / V 8
Power-on reset voltage VPOR 1 1.3 V Pin states defined 8
Power-on reset release voltage VPORR 2.85 V Rising VDD; ensured by design 8
Brown-out reset voltage VBOR 2.8 V Falling VDD 8
VDD rise rate SVDD 0.05 V/ms 0 to 3V in 60ms (ensures internal POR signal) 8
Power-up timer period tPWRT 10 ms 8
Brown-out reset voltage delay tBORDC 1 µs VDD = VBOR - 1 8

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts nickel PIN 1 (Ni/Pd PP-LF) Line 1, Device Code, Week 2x 0.6 61

CAD (KiCad official)

  • Symbol: CAP1296-1-AIA-TR
  • Footprint: Package_DFN_QFN:DFN-10-1EP_3x3mm_P0.5mm_EP1.55x2.48mm
  • 3D model: DFN-10-EP(3x3) (KiCad packages3D, STEP)
  • 3D model files: cap1296-1-aia-tr-etched.step / cap1296-1-aia-tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cap1296-1-aia-tr.step / cap1296-1-aia-tr.glb are the bare package body.

Provenance

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

  • Datasheet: Microchip Tech datasheet (68 pp, sha256 71c43dec9831b0e8, retrieved 2026-10-27, tier: lcsc)
  • 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