FEATURES

1.   Standard 8051 Instruction set, fast machine cycle

      Executes instructions six times faster than the standard 8051

2.   MTP Program Memory

      8K Bytes

      Code Protection Capability

      100 erase times at least

      10 years data retention at least

3.   256 Bytes EEPROM

      30K erase times at least（2.5V<VCC<5.5V ，-20℃~85℃)

      10 years data retention at least

4.   Total 512 Bytes SRAM (IRAM + XRAM)

      256 Bytes IRAM in the 8051 internal data memory area

      256 Bytes XRAM in the 8051 external data memory area (accessed by MOVX Instruction)

5.   Two System Clock type selections

      Fast clock from Internal RC (FRC,  16.5888  MHz)  (trim  7-bit) (5-bit  fine-tuning)

      low clock from Internal RC (SRC,  131 KHz)  (trim  5-bit)

      Slow clock timing uses SRC, 131 KHz/, 0~70   ℃@5V error (±5%)

      System Clock can be divided by 1/2/4/16 option

6.   8051 Standard Timer – Timer0/1

      16-bit Timer0, also supports T0O clock output for Buzzer application

      16-bit Timer1, supports T1O  clock output for Buzzer application

7.   15-bit Timer3

      The clock source can be slow clock. (131K/4 = 32K)

      Interrupt period can be clock divided by 65536/32768/16384/8192/4096/2048/1024/512 option

8.   UART

      With UART pin selection option, baud rate clock can be set

9.   Two independent 16 bits PWMs with period-adjustment:

      16-bit PWM0

            16-bit period/duty cycle setting

            PWM0(N/P) dead zone complementary, period center aligned (PPD) mode

            Highest frequency FRC*2 or FRC or FRC/256 or SRC

      16-bit PWM1/2/3

            16-bit shared period, 16-bit independent duty cycle can be set

            Highest frequency FRC*2 or FRC or FRC/256 or SRC

      2  set output

10. LCD Driver

      AllGPIOscan set the pull-up resistor and pull-down resistor 33KΩ@5V

      The pull-up resistor and pull-down resistor are turned on at the same time to 1/2 LCD bias  voltage Software controlled SCOM0~13

11. 12-bit ADC with  12 channels external Pin input and 2 channels Internal Reference Voltage

      Built-in reference source output VCC or   LDOV: 1. 18V

      Internal Reference Voltage   VBG 1. 18V±1%@VCC=5V~3V, 25℃

      Internal Reference Voltage: 1/4VCC, VCC /201

12. 11 Sources, 4-level priority Interrupt 

      Timer0 /Timer1 /Timer3 Interrupt

      Port1/Port 3  Pin change Interrupt 

      LVD Interrupt

      ADC  Interrupt

      PWM0/1 Interrupt

      EEP write finish Interrupt

      UART Interrupt

13. Pin Interrupt can Wake up CPU from Halt/Stop mode

      Each pin can be defined as Wake up interrupt pin (by pin change)

14. Max. 14 Programmable I/O Pins 

      CMOS output

      Pseudo-Open-Drain, or Open-Drain Output

      Schmitt Trigger Input

      Pin Pull-up / Pull-down can be Enabled or Disabled

      All pin with sink 40mA@VDD=5V ，VOL=0. 1VDD

      All pin with drive 12mA@VDD=5V ，VOH=0.9VDD

      Schmitt Trigger Input VITH(0) : VIH 0.7VDD , VIL : 0.3VDD

      Schmitt Trigger Input VITH(1) : VIH 0.4VDD , VIL : 0.2VDD

15. Independent RC Oscillating Watch Dog Timer

      480ms/240ms/120ms/60ms selectable WDT timeout options

16. Five types Reset

      Power on Reset

      Selectable External Pin Reset

      Selectable Watch Dog Reset

      Software Command Reset

      Selectable Low Voltage Reset

17. 16-level Low Voltage Reset (LVR)

      1.6V ~3.5V

18. 15-level Low level Detect(LVD)

      1.6V ~ 3.5V

19. Five Power Operation Modes

      Fast/ Slow/ Idle/ Halt/ Stop mode

20. On-chip Debug/ICE interface

      Use P3.7(VPP)/P3.0/P3.1 pin

      Share with ICP programming pin

21. Operating Voltage and Current

      VCC =2.4V ~ 5.5V (@Fsys = FRC/1= 16.5888MHz) 
      VCC = 1.8V ~ 5.5V (@Fsys <= FRC/2= 8.2944MHz) 
      Stop mode ICC   =0.7µA@5V

      ICC = 4.3µA @Halt mode ，PWRSAV= 1 ，VCC=3V
      ICC = 6µA @Idle    mode ，PWRSAV= 1 ，VCC=3V 
      Operating Temperature Range –40°C ~ +105°C

22. Capacity of resisting disturbance 

      ESD: better than ± 4000V

      EFT: better than ± 4000V

23. Package Types

      16-pin SOP (150 mil)

PIN ASSIGNMENT