Product Features

• Compatible with mcS-51's 1T command system

  The system clock frequency supports up to 48 MHz

  The machine cycle is supported up to 1TSYS @FSYS≤24MHz

  The fastest machine cycle supports 2TSYS @ FSYS=48MHz

• memory

  Program FLASH: 16K×8Bit

  Data FLASH：1K×8Bit

  General RAM: 256×8Bit

  Universal XRAM: 1K×8Bit

  Support BOOT region, 1K/2K/4K optional

  The program FLASH supports partition protection

• 4 oscillation modes

  HSI - Internal high-speed oscillation: 48MHz

  HSE-External high-speed oscillation: 8MHz/16MHz

  LSE-External low-speed oscillation: 32.768KHz

  LSI - Internal low-speed oscillation: 125KHz

• GPIO

  Up to 26 GPIOs

  Both support pull-up/down resistor function

  Both support edge (rising/falling/double-edge)interrupts

  Both support wake-up function

• Interrupt source

  All external port interrupts are supported

  7 timer interrupts

  Other peripheral interrupts

• timer

  WDT Timer (Watchdog Timer)

  Timer0/1，Timer2，Timer3/4

  LSE_Timer (supports sleep wake-up function).

  WUT (wake-up timer)

  BRT (Serial Port Baud Rate Clock Generator)

• Cyclic redundancy check cell

  CRC16（CRC16-CCITT）

• Buzzer driver

  50% duty cycle, frequency can be set freelyRB port

• PWM

  6-channel PWM

  6 mutually independent cycle countersexternal

  Supports independent/complementary/synchronous/grouped modes

  Edge alignment is supportedexternal

  Supports complementary mode dead-zone delayfunction

• Operating voltage range

  2.1V~5.5V

• Operating temperature range

  -40℃~105℃

• Low Voltage Reset Function (LVR)

  1.8V/2.0V/2.5V/3.5V

• Low Voltage Detection Function (LVD)

  2.0V~4.3V 8 levels selectable

• High Precision 12-bit ADC

  Up to 26 AD external channels

  Reference Voltage Selectable(1.2V/2.0V/2.4V/3.0V/VDD)

  detectable Internal 1.2V reference voltagechannel

  Supports hardware-triggered start conversionfeatures

  Supports hardware-triggered start conversionfeatures

• High sensitivity touch

• Hardware LED matrix driver

  Duty cycle 1/4, 1/5, 1/6, 1/8 selectable

  Supports two modes of common-negative/common- positive

  Three clock sources are available, LSI/LSE/systemclock

  COM, SEG current selectable

  Supports up to 4COM x 16SEG, 5COM x 15SEG 6COM x 14SEG, 8COM x 12SEG

• Hardware LED dot matrix driver

  Three clock sources are available, LSI/LSE/systemclock

  Supports both cyclic and interrupt scans

  Supports each lamp display data optionally

  Supports two on-time options per lamp

  Current 16 gears are available

  Supports up to 9 pin drives and up to 64 lamp driversChoose from dot matrix 4x4, 5x5, 6x6, 6x7, 7x7, 7x8, 8x8

• Low-power mode

  Idle mode (IDLE)

  Sleep Mode (STOP)

• Supports 96-bit unique ID number (UID)

  Each chip has a separate ID number

• Supports two-wire serial programming and debugging

• Communication module

  1xSPI (communication rate up to 6Mb/s)

  1xI2C (communication rate up to 400Kb/s)

  2xUART (baud rate up to 1Mb/s).

  UART1 can be mapped arbitrarily by GPIO