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CAP1188-1-CP-TR
Public Made by Adomby adom
Microchip Tech Touch Sensors, QFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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CAP1188-1-CP-TR
Microchip Tech · Touch Sensors · QFN-24-EP(4x4)
CAP1188-1-CP-TR from Microchip Tech, in a QFN-24-EP(4x4). 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 | SPI_CS# | input | Active low chip-select for the SPI bus, 5V tolerant digital input; connect to ground when unused and ground it when SMBus/I2C communications are used. |
| 2 | WAKE/SPI_MOSI | bidirectional | WAKE is an active-high wake/interrupt output in Standby (needs pull-down resistor) and a wake input in Deep Sleep, or SPI_MOSI master-out-slave-in input (5V tolerant) in normal SPI mode. |
| 3 | SMDATA/SPI_MSIO/SPI_MISO | bidirectional | SMBus bidirectional open-drain data (5V tolerant, needs pull-up resistor), SPI bidirectional MSIO port, or SPI_MISO push-pull output in normal SPI mode. |
| 4 | SMCLK/SPI_CLK | input | SMBus clock input (needs pull-up resistor) or SPI clock input, 5V tolerant digital input. |
| 5 | LED1 | output | LED 1 driver, open drain (default, 5V tolerant, needs pull-up; connect to ground if unused) or push-pull (leave open or connect to ground if unused). |
| 6 | LED2 | output | LED 2 driver, open drain (default, 5V tolerant, needs pull-up; connect to ground if unused) or push-pull (leave open or connect to ground if unused). |
| 7 | LED3 | output | LED 3 driver, open drain (default, 5V tolerant, needs pull-up; connect to ground if unused) or push-pull (leave open or connect to ground if unused). |
| 8 | LED4 | output | LED 4 driver, open drain (default, 5V tolerant, needs pull-up; connect to ground if unused) or push-pull (leave open or connect to ground if unused). |
| 9 | LED5 | output | LED 5 driver, open drain (default, 5V tolerant, needs pull-up; connect to ground if unused) or push-pull (leave open or connect to ground if unused). |
| 10 | LED6 | output | LED 6 driver, open drain (default, 5V tolerant, needs pull-up; connect to ground if unused) or push-pull (leave open or connect to ground if unused). |
| 11 | LED7 | output | LED 7 driver, open drain (default, 5V tolerant, needs pull-up; connect to ground if unused) or push-pull (leave open or connect to ground if unused). |
| 12 | LED8 | output | LED 8 driver, open drain (default, 5V tolerant, needs pull-up; connect to ground if unused) or push-pull (leave open or connect to ground if unused). |
| 13 | ALERT# | output | Active-low open-drain alert/interrupt output for SMBus alert or SPI interrupt (needs pull-up, default), or active-high push-pull when configured so. |
| 14 | ADDR_COMM | input | Address/communications select analog input; the pull-down resistor value determines the address and communications mechanism. |
| 15 | CS8 | bidirectional | Capacitive touch sensor input 8 (analog I/O); connect to ground if unused. |
| 16 | CS7 | bidirectional | Capacitive touch sensor input 7 (analog I/O); connect to ground if unused. |
| 17 | CS6 | bidirectional | Capacitive touch sensor input 6 (analog I/O); connect to ground if unused. |
| 18 | CS5 | bidirectional | Capacitive touch sensor input 5 (analog I/O); connect to ground if unused. |
| 19 | CS4 | bidirectional | Capacitive touch sensor input 4 (analog I/O); connect to ground if unused. |
| 20 | CS3 | bidirectional | Capacitive touch sensor input 3 (analog I/O); connect to ground if unused. |
| 21 | CS2 | bidirectional | Capacitive touch sensor input 2 (analog I/O); connect to ground if unused. |
| 22 | CS1 | bidirectional | Capacitive touch sensor input 1 (analog I/O); connect to ground if unused. |
| 23 | VDD | power_in | Positive power supply, 3.0 V to 3.6 V (3.3 V typical). |
| 24 | RESET | input | Active-high soft reset for the system that resets all registers to default values, 5V tolerant; connect to ground if unused. |
| 25 | GND | power_in | Ground, exposed bottom pad. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | QFN-24-EP(4x4) |
| Category | Sensors |
| Pins | 25 |
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 5V tolerant pins | V5VT_PIN | -0.3 | 5.5 | V | 9 | ||
| Voltage on 5V tolerant pins (/V5VT_PIN - VDD/) | 0 | 3.6 | V | Note 3-2 | 9 | ||
| Voltage on VDD pin | -0.3 | 4 | V | 9 | |||
| Operating Ambient Temperature Range | -40 | 125 | °C | 9 | |||
| Storage Temperature Range | -55 | 150 | °C | 9 | |||
| ESD Rating, All Pins, HBM | 8000 | V | 9 | ||||
| Package Power Dissipation | 0.9 | W | up to TA = 85°C for 24 pin QFN | 9 | |||
| Junction to Ambient (JA) | JA | 58 | °C/W | Note 3-4 | 9 | ||
| Voltage on any other pin to GND | -0.3 | V | 9 | ||||
| Supply Voltage | VDD | 3 | 3.3 | 3.6 | V | 10 | |
| Supply Current (Standby, default conditions) | ISTBY | 120 | 170 | uA | Standby state active; 1 sensor input monitored; No LEDs active; Default conditions (8 avg, 70ms cycle time) | 10 | |
| Supply Current (Standby, 1 avg, 140ms cycle time) | ISTBY | 50 | uA | Standby state active; 1 sensor input monitored; No LEDs active; 1 avg, 140ms cycle time | 10 | ||
| Supply Current (Deep Sleep) | IDSLEEP | 5 | 15 | uA | Deep Sleep state active; LEDs at 100% or 0% Duty Cycle; No communications; TA < 40°C | 10 | |
| Supply Current (Capacitive Sensing Active) | IDD | 500 | 600 | uA | 3.135 < VDD < 3.465V; Capacitive Sensing Active; No LEDs active | 10 | |
| Maximum Base Capacitance | CBASE | 50 | pF | Pad untouched | 10 | ||
| Minimum Detectable Capacitive Shift | CTOUCH | 20 | fF | Pad touched - default conditions (1 avg, 35ms cycle time, 1x sensitivity) | 10 | ||
| Recommended Cap Shift | CTOUCH | 0.1 | 2 | pF | Pad touched - Not tested | 10 | |
| Power Supply Rejection | PSR | 3 | 10 | counts / V | 10 | ||
| Duty Cycle | DUTYLED | 0 | 100 | % | Programmable | 10 | |
| Leakage Current | ILEAK | -5 | 5 | uA | powered or unpowered; TA < 85°C; pull-up voltage < 3.6V if unpowered | 10 | |
| Output Low Voltage | VOL | 0.4 | V | ISINK_IO = 8mA | 10 | ||
| Time to first conversion ready | tCONV_DLY | 170 | 200 | ms | 10 | ||
| RESET Pin Delay | tRST_DLY | 10 | ms | 10 | |||
| Time to communications ready | tCOMM_DLY | 15 | ms | 10 | |||
| Drive Frequency | fLED | 2 | kHz | 10 | |||
| Sinking Current | ISINK | 24 | mA | VOL = 0.4 | 10 | ||
| Sourcing Current | ISOURCE | 24 | mA | VOH = VDD - 0.4 | 10 |
CAD (KiCad official)
- Symbol:
CAP1188-1-CP-TR - Footprint:
Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm - 3D model: QFN-24-EP(4x4) (KiCad packages3D, STEP)
- 3D model files:
cap1188-1-cp-tr-etched.step/cap1188-1-cp-tr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cap1188-1-cp-tr.step/cap1188-1-cp-tr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (79 pp, sha256
91dec09f1eace3f8, retrieved 2026-11-07, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).
# CAP1188-1-CP-TR
**Microchip Tech** · Touch Sensors · QFN-24-EP(4x4)
CAP1188-1-CP-TR from Microchip Tech, in a QFN-24-EP(4x4). 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 | SPI_CS# | input | Active low chip-select for the SPI bus, 5V tolerant digital input; connect to ground when unused and ground it when SMBus/I2C communications are used. |
| 2 | WAKE/SPI_MOSI | bidirectional | WAKE is an active-high wake/interrupt output in Standby (needs pull-down resistor) and a wake input in Deep Sleep, or SPI_MOSI master-out-slave-in input (5V tolerant) in normal SPI mode. |
| 3 | SMDATA/SPI_MSIO/SPI_MISO | bidirectional | SMBus bidirectional open-drain data (5V tolerant, needs pull-up resistor), SPI bidirectional MSIO port, or SPI_MISO push-pull output in normal SPI mode. |
| 4 | SMCLK/SPI_CLK | input | SMBus clock input (needs pull-up resistor) or SPI clock input, 5V tolerant digital input. |
| 5 | LED1 | output | LED 1 driver, open drain (default, 5V tolerant, needs pull-up; connect to ground if unused) or push-pull (leave open or connect to ground if unused). |
| 6 | LED2 | output | LED 2 driver, open drain (default, 5V tolerant, needs pull-up; connect to ground if unused) or push-pull (leave open or connect to ground if unused). |
| 7 | LED3 | output | LED 3 driver, open drain (default, 5V tolerant, needs pull-up; connect to ground if unused) or push-pull (leave open or connect to ground if unused). |
| 8 | LED4 | output | LED 4 driver, open drain (default, 5V tolerant, needs pull-up; connect to ground if unused) or push-pull (leave open or connect to ground if unused). |
| 9 | LED5 | output | LED 5 driver, open drain (default, 5V tolerant, needs pull-up; connect to ground if unused) or push-pull (leave open or connect to ground if unused). |
| 10 | LED6 | output | LED 6 driver, open drain (default, 5V tolerant, needs pull-up; connect to ground if unused) or push-pull (leave open or connect to ground if unused). |
| 11 | LED7 | output | LED 7 driver, open drain (default, 5V tolerant, needs pull-up; connect to ground if unused) or push-pull (leave open or connect to ground if unused). |
| 12 | LED8 | output | LED 8 driver, open drain (default, 5V tolerant, needs pull-up; connect to ground if unused) or push-pull (leave open or connect to ground if unused). |
| 13 | ALERT# | output | Active-low open-drain alert/interrupt output for SMBus alert or SPI interrupt (needs pull-up, default), or active-high push-pull when configured so. |
| 14 | ADDR_COMM | input | Address/communications select analog input; the pull-down resistor value determines the address and communications mechanism. |
| 15 | CS8 | bidirectional | Capacitive touch sensor input 8 (analog I/O); connect to ground if unused. |
| 16 | CS7 | bidirectional | Capacitive touch sensor input 7 (analog I/O); connect to ground if unused. |
| 17 | CS6 | bidirectional | Capacitive touch sensor input 6 (analog I/O); connect to ground if unused. |
| 18 | CS5 | bidirectional | Capacitive touch sensor input 5 (analog I/O); connect to ground if unused. |
| 19 | CS4 | bidirectional | Capacitive touch sensor input 4 (analog I/O); connect to ground if unused. |
| 20 | CS3 | bidirectional | Capacitive touch sensor input 3 (analog I/O); connect to ground if unused. |
| 21 | CS2 | bidirectional | Capacitive touch sensor input 2 (analog I/O); connect to ground if unused. |
| 22 | CS1 | bidirectional | Capacitive touch sensor input 1 (analog I/O); connect to ground if unused. |
| 23 | VDD | power_in | Positive power supply, 3.0 V to 3.6 V (3.3 V typical). |
| 24 | RESET | input | Active-high soft reset for the system that resets all registers to default values, 5V tolerant; connect to ground if unused. |
| 25 | GND | power_in | Ground, exposed bottom pad. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | QFN-24-EP(4x4) |
| Category | Sensors |
| Pins | 25 |
## 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 5V tolerant pins | V5VT_PIN | -0.3 | | 5.5 | V | | 9 |
| Voltage on 5V tolerant pins (/V5VT_PIN - VDD/) | | 0 | | 3.6 | V | Note 3-2 | 9 |
| Voltage on VDD pin | | -0.3 | | 4 | V | | 9 |
| Operating Ambient Temperature Range | | -40 | | 125 | °C | | 9 |
| Storage Temperature Range | | -55 | | 150 | °C | | 9 |
| ESD Rating, All Pins, HBM | | | | 8000 | V | | 9 |
| Package Power Dissipation | | | | 0.9 | W | up to TA = 85°C for 24 pin QFN | 9 |
| Junction to Ambient (JA) | JA | | | 58 | °C/W | Note 3-4 | 9 |
| Voltage on any other pin to GND | | -0.3 | | | V | | 9 |
| Supply Voltage | VDD | 3 | 3.3 | 3.6 | V | | 10 |
| Supply Current (Standby, default conditions) | ISTBY | | 120 | 170 | uA | Standby state active; 1 sensor input monitored; No LEDs active; Default conditions (8 avg, 70ms cycle time) | 10 |
| Supply Current (Standby, 1 avg, 140ms cycle time) | ISTBY | | | 50 | uA | Standby state active; 1 sensor input monitored; No LEDs active; 1 avg, 140ms cycle time | 10 |
| Supply Current (Deep Sleep) | IDSLEEP | | 5 | 15 | uA | Deep Sleep state active; LEDs at 100% or 0% Duty Cycle; No communications; TA < 40°C | 10 |
| Supply Current (Capacitive Sensing Active) | IDD | | 500 | 600 | uA | 3.135 < VDD < 3.465V; Capacitive Sensing Active; No LEDs active | 10 |
| Maximum Base Capacitance | CBASE | | | 50 | pF | Pad untouched | 10 |
| Minimum Detectable Capacitive Shift | CTOUCH | 20 | | | fF | Pad touched - default conditions (1 avg, 35ms cycle time, 1x sensitivity) | 10 |
| Recommended Cap Shift | CTOUCH | 0.1 | | 2 | pF | Pad touched - Not tested | 10 |
| Power Supply Rejection | PSR | | 3 | 10 | counts / V | | 10 |
| Duty Cycle | DUTYLED | 0 | | 100 | % | Programmable | 10 |
| Leakage Current | ILEAK | -5 | | 5 | uA | powered or unpowered; TA < 85°C; pull-up voltage < 3.6V if unpowered | 10 |
| Output Low Voltage | VOL | | | 0.4 | V | ISINK_IO = 8mA | 10 |
| Time to first conversion ready | tCONV_DLY | | 170 | 200 | ms | | 10 |
| RESET Pin Delay | tRST_DLY | | 10 | | ms | | 10 |
| Time to communications ready | tCOMM_DLY | | 15 | | ms | | 10 |
| Drive Frequency | fLED | | 2 | | kHz | | 10 |
| Sinking Current | ISINK | | 24 | | mA | VOL = 0.4 | 10 |
| Sourcing Current | ISOURCE | | 24 | | mA | VOH = VDD - 0.4 | 10 |
## CAD (KiCad official)
- Symbol: `CAP1188-1-CP-TR`
- Footprint: `Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm`
- 3D model: QFN-24-EP(4x4) (KiCad packages3D, STEP)
- 3D model files: `cap1188-1-cp-tr-etched.step` / `cap1188-1-cp-tr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cap1188-1-cp-tr.step` / `cap1188-1-cp-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/00001620C.pdf) (79 pp, sha256 `91dec09f1eace3f8`, retrieved 2026-11-07, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-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/cap1188-1-cp-tr-datasheet.pdf)