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• CPU configuration

• 2K x 13 bits on-chip ROM
• 80 x 8 bits on-chip registers (SRAM)
• 8-level stacks for subroutine nesting?
• 4 programmable level voltage detector(LVD) : 4.5V, 4.0V, 3.3V, 2.2V
• 3 programmable level voltage reset(LVR) : 4.0V, 3.5V, 2.7V
• Less than 1.5 mA at 5V / 4 MHz
• Typically 15 mA, at 3V / 32kHz
• Typically 2 mA, during Sleep mode

• I/O port configuration

• 1 bidirectional I/O ports
• Wake-up port : P5
• 7 Programmable pull-down I/O pins
• 7 programmable pull-high I/O pins
• 7 programmable open-drain I/O pins
• External interrupt : P52

• Operating voltage range

• Operating voltage: 2.1V~5.5V (Commercial)
• Operating temperature: 0°C ~70°C (Commercial)

• Operating frequency range

• Crystal mode:

DC~16 MHz / 2clks @ 4.5V

DC~8 MHz / 2clks @ 3V

DC~4 MHz / 2clks @ 2.1V

• ERC mode:?

DC~16 MHz / 2clks @ 4.5V

DC~12 MHz / 2clks @ 4V

DC~4 MHz / 2clks @ 2.1V

• IRC mode:

Oscillation mode : 4 MHz, 8 MHz, 16 MHz, 455kHz

Internal RC Frequency	Drift Rate
	Temperature(0°C~70°C)	Voltage (2.3V ~5.5V)	Process	Total
4 MHz	± 3%	± 5%	± 3%	± 11%
8 MHz	± 3%	± 5%	± 3%	± 11%
16 MHz	± 3%	± 5%	± 3%	± 11%
455kHz	± 3%	± 5%	± 3%	± 11%

All the four main frequencies can be trimmed by programming with four calibrated bits in the ICE143 Simulator. OTP is auto trimmed by ELAN Writer.

• Peripheral configuration

• 8-bit real time clock/counter (TCC) with selective signal sources, trigger edges, and overflow interrupt
• 7-channel Analog-to-Digital Converter with 10-bit resolution in Vref mode
• Two Pulse Width Modulation (PWM) with 8-bit resolution, each provides 8-bit real time clock / counter function and supports 16-bit cascaded mode from these two independent ones
• One pair of comparators
• (offset voltage : 5mV , max offset voltage : 10mV)
• Power-down (Sleep) mode
• High EFT immunity

• Seven available interrupts:?

• TCC overflow interrupt
• Input-port status changed interrupt (wake-up from sleep mode)
• External interrupt?
• ADC completion interrupt
• PWM period match completion
• Comparators status change interrupt
• Low voltage detector interrupt

• Programmable free running Watchdog Timer

• Two clocks per instruction cycle
• Watchdog timer 16.5ms ± 30% in Vdd = 5V at 25°C (WDTPS=1 in Option pin)
• Watchdog timer 18ms ± 30% in Vdd = 3V at 25°C (WDTPS=1 in Option pin)
• Watchdog timer 4.2ms ± 30% in Vdd = 5V at 25°C (WDTPS=0 in Option pin)
• Watchdog timer 4.5ms ± 30% in Vdd = 3V at 25°C (WDTPS=0 in Option pin)

• Package type:

• 10-pin MSOP 118 mil : EM78P143MS10J

Note: Green products do not contain hazardous substances.

? ? ? 芯片手冊下載:
? ? ?EM78P143芯片數據手冊