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• CPU Configuration

• 2Kx13 bits on-chip ROM
• 80x8 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, 2.4V
• Less than 1.5 mA at 5V / 4 MHz
• Typically 15 μA, at 3V / 32kHz
• Typically 2 μA, during Sleep mode

• I/O Port Configuration

• 3 bidirectional I/O ports: P5, P6, P7
• 8 I/O pins & 1I pin
• Wake-up port: P5
• 5 programmable pull-high I/O pins
• 6 programmable open-drain I/O pins
• 1 programmable open-drain I/O pins

• Operating Voltage

• 2.1V~5.5V at 0°C~70°C (commercial)

• Operating Frequency range (base on 2 clocks)?

• Crystal mode:

????????????????????????????????????? DC~16MHz, 4.5V;

????????????????????????????????????? DC~8MHz, 3V; DC ~ 4MHz, 2.1V

• ERC mode:?

????????????????????????????????????? DC ~ 16MHz, 4.5V;

????????????????????????????????????? DC ~ 8MHz, 3V;

????????????????????????????????????? DC ~ 250ns inst. Cycle, 3V

• IRC mode:?

??????????Oscillation mode: 16MHz, 4MHz, 1MHz, 455kHzn.

All the four main frequencies can be trimmed by programming with four calibrated bits in the ICE341N Simulator. OTP is auto trimmed by ELAN Writer.

• Fast set-up time requires only 0.8ms (VDD: 5V Crystal: 4MHz, C1/C2: 30pF) in HXT2 mode and 10ms in IRC mode (VDD: 5V, IRC: 4MHz)
• Peripheral configuration


• Easily implemented IR (infrared remote control)
• 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
• 7-bit multi-channel Analog-to-Digital Converter with 12-bit resolution in Vref mode

• Five available interrupts

• TCC, TCCA, TCCB, TCCC overflow interrupt.
• Input-port status changed interrupt (wake up from sleep mode)
• ADC completion interrupt
• IR/PWM period match completion
• Low voltage detect (LVD) interrupt

• Special features

• Programmable free running Watchdog Timer(4.5 ms : 18 ms)
• Power saving Sleep mode
• Selectable Oscillation mode
• Power-on voltage detector available (1.7V ± 0.1V)
• High EFT immunity (better performance at 4MHz or below)

• Package Type

• 10 pin SSOP 150mil : EM78P142SS10J/S

Note: Green products do not contain hazardous .substances.

? ? ? 芯片手冊下載:
? ? ?EM78P142芯片數據手冊