• 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)

　

• 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