MCU-based 4-Channel Capacitive Touch Sensor
* Properties
- 8-bit Turbo 80C51 Architecture (4 clock cycles / 1 machine cycle)
- Max. 5 Programmable I/O pins (Bi-direction, Open-drain output, Push-pull output)
- Power-on-Reset (POR) by Low Voltage Detector (LVD)
- 2 Selectable Internal ring Oscillators (8MHz / 40KHz)
- Programmable Wotchdog Timer
- 3 Channel 16-bit Timer / Counters
- 1 Channel I2C Slave
- 4 Channel PWM (Pulse Width Modulation)
- 4 Channel Smart Touch Sense Engine (Excluded dummy channel)
- 8 Interrupt Sources including 2 external ones
-> Timer 0 / 1 / 2, WDT, TOUCH, I2C, PWM
-> Two external interrupt : Selectable Edge / Level of Source
-> Two level interrupt priority
- Reset Scheme
-> on-chip Power-on-Reset (with LVD)
-> External Reset
-> Wotchdog Timer Reset
- Power Consumption
-> Active Current : Max 3mA @ 3.3 V
-> Normal Current : Max 1.8mA @ 3.3 V
-> Standby Current : Max 30uA @ 3.3 V (Operation Timer 2)
- ESD Protection up to 8KV
- RoHS Compliant 16 QFN / 12 WLCSP package
* Applicability
- Mobile applications (Smart phone, Tablet, Car navigation)
- Home appliances (TV, Monitor keypads)
- SAR Sensor (Smart phone, Tablet, Laptop)
- Proximity Sensor
- Membrane switch replacement
- Sealed control panels, keypads
- Touch screen replacement application
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