Product：SN8F5703

一、Device Overview 

In comparison to SONiX’s previous 8-bit MCUs, the SN8F5700 series stands out with market-leading features including three individual sets of 16-bit asynchronous 32MHz High Speed PWM Generator and support for up to 6-channel PWM output. SN8F5700 can easily define cycle and duty through registers. The max speed of cycle is 16MHz, the max resolution is 16-bit with dead-band/invert function. The PWM can easily be applied to BLDC motor Six Step Square Wave/Sine Wave controls, wireless power charger coil driving and MOS control appliance. Further, SN8F5700 series offers a wide range of benefits by combining internal interrupt and high precision SAR ADC therefore the function of PWM can be utilized for Brushless Direct Current Motor (BLDC Motor) and for Hall-sensor and sensor less applications.

二、 Features

- Enhanced 8051 microcontroller with reduced - Enhanced 8051 microcontroller with reduced

- Up to 32 MHz flexible CPU frequency

- Up to 32 MHz flexible CPU frequency 1 MHz to 16 MHz crystal, and external synchronous clock source selections

- Real-time clock with 32.768 kHz crystal

- 8 KB non-volatile flash memory (IROM) with in-system program support

- 256 bytes internal RAM (IRAM)

- 256 bytes internal RAM (IRAM)

- 15 interrupt sources with priority levels control and unique interrupt vectors

- 13 internal interrupts

- 2 external interrupts: INT0, INT1

- 1 set of DPTR

- 3 set 8/16-bit timers with one capture / compare function

- 1 set 8/16-bit PWM generators: each PWM generator has 6 output channels with inverters and dead-band control

- 12-bit SAR ADC with 11 external and 3 internal channels, and 4 internal reference voltages

- SPI, UART, I2C interface with SMBus Support

- On-Chip Debug Support: Single-wire debug interface

3 hardware breakpoints Unlimited software breakpoints ROM data security/protection

- Watchdog and programmable external reset

- 1.8/2.4/3.3-V low voltage detectors

- Wide supply voltage (1.8 V – 5.5 V) and temperature (-40 °C to 85 °C) range

三、Applications

- Brushless DC motor

- Home automation

- Household

- Other

四、Features Selection Table

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