Features

• • CPU
    

  -Turbo 8052 CPU
  

  -Each machine cycle consumes 3 system clocks.
  

  -Instruction execution time: 0.1875μs(at 16MHz), 92μs (at 32.768 kHz)
  

  -Program memory: 64K-byte Flash Memory
  

  • Data memory : 256B + 2KB SRAM
    
  • Totally 11 interrupt sources: 9 internal sources and 2 external sources.
    
  • 8 wake-up keys (WAKE0 ~ WAKE7) with edge-selection, interrupt-selection, wakeup-from-power-down-mode functions
    
  • Input/output ports:
    

  -69 pins for LQFP100 and DIE form, 44 of which are shared with LCD driver
  

  -All GPIOs could be configured as 4 types: input with pull-up resistor, input without pull-up resistor, CMOS output and N-ch open-drain output.
  

  • 3 sets 8052 standard 16-bit timer/counters: Timer 0, Timer 1 and Timer 2
    

  -Timer 0 could be used as: a 13-bit timer, a 16-bit timer, an 8-bit auto-reload timer, two 8-bit timers.
  

  -Timer 1 could be used as: a 13-bit timer, a 16-bit timer, an 8-bit auto-reload timer.
  

  -Timer 2 could be used as: a 16-bit auto-reload timer/counter, a 16-bit capture timer/counter, a UART baud rate generator for both receive and/or transmit.
  

  • 1 set of 18-bit timer/counter: Timer 3 which can be used as timer, event counter, pulse width measurement, frequency measurement.
    
  • 2 sets 12-bit PWM for signal generation
    
  • Time base timer with 8 interrupt sources
    
  • Watchdog timer with programmable detection time
    
  • Serial interface
    

  -8052 standard UART: 1 channel
  

  -SPI: Master/Slave modes, 1 channel
  

  -Both UART and SPI could be from P35 ~ P37 or P75 ~ P77 by software selection
  

  -I2C: Slave-mode-only, 1channel
  

  • 2.5V and 1.25V regulator voltage outputs for applications
    
  • 12-bit successive approximation type A/D converter
    

  -VREF voltage could be internal (2.5V) or external VAREF pin.
  

  -Analog input: 15 external and 4 internal channels
  

  • 4 high-speed Operational Amplifier (OP1, OP2, OP3 and OP4)
    

  -Power supply: from VREF (internal 2.5V or external VAREF pin)
  

  -Input range: 0.05VREF ~ 0.95VREF
  

  -Slew rate: 4.5V/us
  

  -DC Gain=110dB, Unit-gain BW=7MHz
  

  -Offset=2mV (max)
  

  • 2 sets of analog switch for signals connection
    
  • LCD driver/controller
    

  -LCD direct drive capability (Max 40seg x 4com)
  

  -1/4, 1/3 or 1/2 duties are selectable by program.
  

  -1/3 or 1/2 bias are selectable by program.
  

  • Power on reset (POR)
    
  • Single/dual-clock operation
    

  -Single-clock mode: high-speed clock only. Clock source could be internal RC Oscillator (max.12MHz) or external crystal oscillator (max. 24MHz)
  

  -Dual-clock mode: both high-speed clock low-speed clock are used. High-speed clock source could be internal RC Oscillator (max. 12MHz) or external crystal oscillator (max.24MHz). Low-speed clock source is external 32.768KHz crystal oscillator.
  

  • 2 power saving operating modes (IDLE mode and POWER-DOWN mode) and many control bits for specified peripherals could be selected.
    
  • Operating voltage:
    

  -DVDD = AVDD = 2.4 to 3.6V at 16 MHz / 32.768 kHz
  

  -DVDD = AVDD = 2.7 to 3.6V at 24 MHz / 32.768 kHz
  

  • ICE (In-Circuit-Emulator) embedded
    
  • ISP (In-System-Programming) function by I2C interface
    
  • Package: LQFP100