Product：SN8F5708

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.

- Enhanced 8051 microcontroller with reducedinstruction cycle time (up to 12 times 80C51)
- Up to 32 MHz flexible CPU frequency
- Internal 32 MHz Clock Generator (IHRC), 1 MHz to 16 MHz crystal, and external1 MHz to 16 MHz crystal, and external
- Real-time clock with 32.768 kHz crystal
- 16 KB non-volatile flash memory (IROM) within-system program support
- 256 bytes internal RAM (IRAM)
- 1 KB external RAM (XRAM)
- 19 interrupt sources with priority levelscontrol and unique interrupt vectors
- 16 internal interrupts
- 3 external interrupts: INT0, INT1, INT2
- Hardware Multiplication/Division Unit
- 2 set of DPTR
- 3 set 8/16-bit timers with one capture /compare function
- 3 set 8/16-bit PWM generators: each PWM generator has 2 output channelswith inverters and dead-band control
- 12-bit SAR ADC with 12 external and 4 internalchannels, and 4 internal reference voltages
- SPI, UART, I2C interface with SMBus Support
- On-Chip Debug Support:
Single-wire debug interface
Single-wire debug interface
Single-wire debug interface
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) andtemperature (-40 °C to 85 °C) range  

三、Applications

Brushless DC motor
Home automation
Household
Household

四、Features Selection Table

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