Product：SN8F5702

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 reducedinstruction cycle time (up to 12 times 80C51)

- Up to 32 MHz flexible CPU frequency

- Internal 32 MHz Clock Generator (IHRC)

- 4 KB non-volatile flash memory (IROM) within-system program support

- 256 bytes internal RAM (IRAM)

- 13 interrupt sources with priority levels- 13 interrupt sources with priority levels

- 12 internal interrupts

- 1 external interrupts: INT0

- 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 4 output channelswith inverters and dead-band control

- 12-bit SAR ADC with 10 external and 2 internalchannels, and 4 internal reference voltages

- SPI, UART, I2C interface with SMBus Support

- On-Chip Debug Support:

Single-wire debug interface

2 hardware breakpoints

Unlimited software breakpoints

Unlimited software breakpoints

- 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- Wide supply voltage (1.8 V – 5.5 V) and  

三、Applications

- Brushless DC motor
- Home automation
- Household
- Other

四、Features Selection Table

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