• CPU configuration

• 2Kx13 bits on-chip ROM
• 80x8 bits on-chip registers (SRAM)
• 8-level stacks for subroutine nesting
• Less than 1.9 mA at 5V/4MHz
• Typically 15 uA, at 3V/32kHz
• Typically 1 uA, during Sleep mode 

• I/O port configuration

• 3 bidirectional I/O ports : P5, P6, P7
• 17 I/O pins
• Wake-up port : P5
• 8 Programmable pull-down I/O pins
• 8 programmable pull-high I/O pins
• 8 programmable open-drain I/O pins
• External interrupt : P60

• Operating voltage range

• Operating voltage: 2.3V~5.5V (Commercial)
• Operating voltage: 2.5V~5.5V (Industrial)

• Operating temperature range

• Operating temperature: 0°C ~70°C (Commercial)
• Operating temperature: -40°C ~85°C (Industrial)

• Operating frequency range

• Crystal mode: 

DC~20MHz/2clks @ 5V, DC~100ns inst. Cycle @ 5V

DC~8MHz/2clks @ 3V, DC~250ns inst. Cycle @ 3V

• ERC mode: 

DC~16MHz/2clks @ 5V, DC~125ns inst. Cycle @ 5V

DC~8MHz/2clks @ 3V, DC~250ns inst. Cycle @ 3V

• IRC mode:

Oscillation mode : 4MHz, 8MHz, 1MHz, 455kHz

Internal RC Frequency	Drift Rate
	Temperature(-40°C ~80°C )	Voltage(2.3V~5.5V)	Process	Total
4MHz	±10%	±5%	±4%	±19%
8MHz	±10%	±6%	±4%	±20%
1MHz	±10%	±5%	±4%	±19%
455kHz	±10%	±5%	±4%	±19%

All the four main frequencies can be trimmed by programming with four calibrated bits in the ICE259N 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 
• 8-bit real time clock/counter (TCCA, TCCC) and 16-bit real time clock/counter (TCCB) with selective signal sources, trigger edges, and overflow interrupt 
• 4-bit channel Analog-to-Digital Converter with 12-bit resolution in Vref mode
• Easily implemented IR (Infrared remote control) application circuit
• One pair of comparators or OP

• Six available interrupts:

• TCC, TCCA, TCCB, TCCC overflow interrupt
• Input-port status changed interrupt (wake-up from sleep mode)
• External interrupt
• ADC completion interrupt
• Comparators status change interrupt
• IR/PWM interruptn 

• Special features

• Programmable free running watchdog timer (4.5ms : 18ms)
• Power saving Sleep mode
• Selectable Oscillation mode
• Power-on voltage detector (2.0V ± 0.1V)

• Package type:

• 14-pin DIP 300mil : EM78P259ND14J/S
• 14-pin SOP 150mil : EM78P259NSO14J/S
• 16-pin SOP 150mil : EM78P259NSO16AJ/S
• 18-pin DIP 300mil : EM78P259ND18J/S
• 18-pin SOP 300mil : EM78P259NSO18J/S
• 20-pin DIP 300mil : EM78P259ND20J/S
• 20-pin SOP 300mil : EM78P259NSO20J/S
• 20-pin SSOP 209mil : EM78P259NSS20J/S

Note: Green products do not contain hazardous .substances.

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