FEATURES1. Standard 8051 Instruction set, fast machine cycle
Executes instructions six times faster than the standard 8051.
2. Flash Program Memory
16K Bytes (TM52eF1716)
32K Bytes (TM52eF1732)
Support IAP “In Application Programming” (EEPROM like)
Code Protection Capability
10K erase times at least
10 years data retention at least
3. Total 1280 Bytes SRAM (IRAM + XRAM)
256 Bytes IRAM in the 8051 internal data memory area
1024 Bytes XRAM in the 8051 external data memory area (accessed by MOVX Instruction)
4. Four System Clock type selections
Fast clock from 1~16MHz Crystal (FXT)
Fast clock from Internal RC (FRC, 14.7456 MHz)
Slow clock from 32768Hz Crystal (SXT)
Slow clock from Internal RC (SRC,80 KHz)
System Clock can be divided by 1/2/4/16 option
5. 8051 Standard Timer – Timer0/1/2
16-bit Timer0, also supports T0O clock output for Buzzer application
16-bit Timer1
16-bit Timer2, also supports T2O clock output for Buzzer application
6. 15-bit Timer3
Clock source is Slow clock
Interrupt period can be clock divided by 32768/16384/8192/128 option
7. UARTs
UART1, 8051 standard UART
UART2, the second UART, supports only mode1 and mode3
8. Three independent 16 bits PWMs with period-adjustment
9. Three independent 8 bits PWMs with prescaler/period-adjustment
10. SPI Interface
Master or Slave mode selectable
Programmable transmit bit rate
Serial clock phase and polarity options
MSB-first or LSB-first selectable
11. I2C interface (Master / Slave)
12. 20-Channel Touch Key (CTK)
13. 12-bit ADC with 13 channels External Pin Input and 3 channels Internal Reference Voltage
Internal Reference Voltage: VBG 1.22V @VCC=5V~3V, 25℃
Internal Reference Voltage: 1/4VCC
Internal Reference Voltage: VTEMP
14. LCD Driver
1/8 duty
Software controlled COM0~7
1/2 LCD Bias
15. LED Controller/Driver
Bidirection matrix mode (BiD): 4Cx6S, 10 pins up to 48 dots
COM with Dead Time
3 groups, 8-level Brightness selection
16. 14 Sources, 4-level priority Interrupt
Timer0/Timer1/Timer2/Timer3 Interrupt
INT0~INT1 pin low level or falling edge Interrupt
INT2~INT9 pin Falling-Edge Interrupt
Port1 Pin Change Interrupt
UART1/UART2 TX/RX Interrupt
ADC/Touch Key Interrupt
SPI Interrupt
I2C interrupt
PWM0/PWM1/PWM2 interrupt
17. Pin Interrupt can Wake up CPU from Power-Down (Stop/Halt) mode
NT0~INT9 Interrupt & Wake-up
Each Port1 pin can be defined as Interrupt & Wake-up pin (by pin change)
Note: Chip cannot enter Stop/Halt Mode if INTn pin is low and wakeup is enabled. (INTn=0 and EXn=1, n=0~9)
18. Max. 30 Programmable I/O pins
CMOS Output
Pseudo-Open-Drain, or Open-Drain Output
Schmitt Trigger Input
Pin Pull-up can be Enabled or Disabled
All pin with High sink (60mA@VCC=5V，VOL=0.1VCC)
19. Independent RC Oscillating Watch Dog Timer
400ms/200ms/100ms/50ms selectable WDT timeout options
20. Five types Reset
Power on Reset
Selectable External Pin Reset
Selectable Watch Dog Reset
Software Command Reset
Selectable Low Voltage Reset
21. 16-level Low Voltage Detect
4.32V/4.2V/4.08V/3.96V/3.84V/3.72V/3.6V/3.48V/
3.35V/3.23V/3.1V/2.99V/2.86V/2.74V/2.62V/2.52V
22. 8-level Low Voltage Reset
4.2V/3.96V/3.72V/3.48V/3.23V/2.99V/2.74V/2.52V
23. Five Power Operation Modes
Fast/Slow/Idle/Stop/Halt mode
24. Integrated 16-bit Cyclic Redundancy Check function
25. Multiplication and division
8 bit Multiplier & Divider (standard 8051)
16 bits Multiplier & Divider
32 bits ÷ 16 bits Divider
26. On-chip Debug/ICE interface
Use P3.0/P3.1 pin or P0.0/P0.1 pin
Share with ICP programming pin
27. Writer interface
Use P3.0/P3.1 pin
28. Operating Voltage and Current
VCC =2.5V ~ 5.5V @FSYSCLK=14.7456MHz
ICC =7µA @Stop mode, VCC=5V
ICC =1.4µA @Stop mode, VCC=3V
ICC =150µA @Idle mode, VCC=5V
29. Operating Temperature Range
–40°C ~ +85°C
30. Package Types
SOP28 (300 mil)
SOP32 (300 mil)
QFN20 (3*3*0.75-0.4mm)
QFN28 (4*4*0.75-0.4mm)
QFN32 (4x4x0.75-0.4mm)
LQFP32 (7x7x1.4mm)