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EM78F568N

EM78F568N is an 8-bit microprocessor designed and developed with low-power, high-speed CMOS technology. It is
equipped with 8K*15-bits Electrical Flash Memory, two comparators, three 8 bits timers, one 16 bits timer, two 10 bits
PWM, 8 channels AD with 12 bits resolution, SPI, UART and I2C.
With its Flash-ROM feature, the EN78F568N is able to offer a convenient way of developing and verifying users'
programs. Moreover, users can take advantage of EMC Writer to easily program his development code.

  • CPU configuration
  • Support 8K×15 bits program ROM
  • 304×8 bits on chip registers (SRAM)
  • More than 10 years data retention
  • 8 level stacks for subroutine nesting
  • Less than 2 mA at 5V/4MHz
  • Typically 20 μA, at 3V/32kHz
  • Typically 2 μA, during sleep mode
  • Four operation mode
    Mose CPU Main

    clock

    WDT

    clock

    Sleep mode Turn off Turn off Turn off
    Idle Mode Turn off Turn off Turn off
    Green mode Turn off Turn off Turn off
    Normal mode Turn off Turn off Turn off
  • I/O port configuration
  • 5 bidirectional I/O ports: P5, P6, P7, P8, P9
  • Pin change wake-up port : P6
  • 40 programmable pull-down I/O pins
  • 40 programmable pull-high I/O pins
  • 40 programmable open-drain I/O pins
  • 40 programmable high-sink/drive I/O pins
  • External interrupt : P60
  • Operating voltage range:
  • 2.4V~5.5V at 0°C~70°C (commercial)
  • 2.6V~5.5V at -40°C~85°C (industrial)
  • Operating frequency range (base on 2 clocks):
  • Crystal mode:

DC ~ 20MHz at 5V

DC ~ 8MHz at 3V

DC ~ 4MHz at 2.4V

  • ERC mode:

DC ~ 20MHz at 5V

DC ~ 8MHz at 3V

DC ~ 4MHz at 2.4V

  • IRC mode

DC ~ 16MHz at 4.5V~5.5V

DC ~ 4MHz at 2.4V~5.5V

Internal RC Drift Rate (Ta=25°C, VDD=5V±5%,VSS=0V)

 

Internal RC
Frequency
Drift Rate
Temperature

(-40°C+85°C)

Voltage

(2.2V~5.5V)

Process Total
455kHz ±5% ±5% ±4% ±14%
4MHz ±5% ±5% ±4% ±14%
8MHz ±5% ±5% ±4% ±14%
16MHz ±5% ±5% ±4% ±14%
  • Peripheral configuration
  • 8-bit real time clock/counter (TCC) with selectivesignal sources, trigger edges, and overflow interrupt
  • Two Pulse Width Modulation (PWMA,B) with 10-bitresolution which shared with Timer A,B
  • Two 8 bits Timer/Counter:

TC1: Timer/Counter/Capture mode selection

TC3: Timer/Counter/PWM/PDO(programmabledivider output)

Mode selection

  • One 16 bits Timer/Counter:

TC2: Timer/Counter/Window mode selection

  • 4 programmable Level Voltage Detector (LVD): Vddpower monitor and support low voltage detectorinterrupt flag
  • 8 channels Analog-to-Digital Converter with 12-bitresolution in Vref mode
  • One pair of comparator
  • Serial transmitter/receiver interface (SPI): three wiresynchronous communication
  • Universal asynchronous receiver transmitterinterface (UART): two wire asynchronouscommunication
  • Power-down (Sleep) mode
  • High EFT immunity(4MHZ,4clocks)
  • I2C function with 7/10 bits address & 8 bits datatransmit/receive mode
  • 19 available interrupts(5 external, 14 internal )
  • External interrupt(P60)
  • TCC overflow interrupt
  • TC1,TC2, TC3 overflow interrupt
  • Input-port status changed interrupt (wake up fromsleep mode)
  • ADC completion interrupt
  • PWMA, PWMB period match completion
  • Comparator 1/2 high/low interrupt
  • I2C transfer/receive/stop interrupt
  • UART TX, RX , RX error interrupt
  • SPI interrupt
  • LVD interrupt
  • Programmable free running Watchdog Timer
  • Watchdog Timer: 16.5ms ± 5% with Vdd =5V at25°C, Temperature range ± 5% (-40°C ~+85°C)
  • Watchdog Timer: 18ms ± 5% with Vdd = 3V at 25°CTemperature range ± 5% (-40°C~+85°C)
  • Two clocks per instruction cycle
  • Package Type:
  • 44 pin QFP: EM78F568NQ44J/S
  • 40 pin DIP: EM78F568ND40J/S
  • 28 pin SKDIP: EM78F568NK28J/S
  • 28 pin SOP: EM78F568NSO28J/S

Note: Green products do not contain hazardoussubstances.

  • 99.9% single instruction cycle commands
  • There are 4 kinds of oscillation ranges in crystal mode
     
Crystal ranges Oscillator Mode
20MHz~6MHz HXT
6MHz~1MHz XT
1MHz~100KHz LXT1
32.768KHz LXT2

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