ATMF04

 

 

                                      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