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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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cap1296-1-aia-tr.step/cap1296-1-aia-tr.glbare 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, 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).
# 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](https://ww1.microchip.com/downloads/en/DeviceDoc/00001569B.pdf) (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](docs/cap1296-1-aia-tr-datasheet.pdf)