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EM78P372N

The EM78P372N is an 8-bit microprocessor designed and developed with low-power and high-speed CMOS technology. The device has an on-chip 2K13-bit Electrical One Time Programmable Read Only Memory (OTP-ROM). It provides a protection bit to prevent intrusion of user’s OTP memory code. Three Code option bits are also available to meet user's requirements.

With enhanced OTP-ROM features, the EM78P372N provides a convenient way of developing and verifying user's programs. Moreover, this OTP device offers the advantages of easy and effective program updates, using development and programming tools. User can avail of the ELAN Writer to easily program his development code.

  • 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, 2.7V
  • 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
  • 18 I/O pins & 1I pin
  • Wake-up port: P5
  • 8 programmable pull-down I/O pins
  • 16 programmable pull-high I/O pins
  • 8 programmable open-drain I/O pins
  • 14 programmable high-sink current I/O pins
  • External interrupt:P60
  • Operating Voltage and Temperature Range:
  • 2.1V~5.5V at 0° C~70° C (commercial)
  • 2.3V~5.5V at -40° C~85° C (industrial)
  • Operating Mode: 
  • Crystal mode:

                                      DC ~ 16 MHz, 4.5V;

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

  • ERC mode: 

                                      DC ~ 2 MHz, 2.1V;

  • IRC mode: 
          Oscillation mode: 16 MHz, 4 MHz, 1 MHz, 8 MHz

Internal RC Frequency Drift Rate
Temperature(-40°C~85°C) Voltage(2.1V~5.5V) Process Total
4 MHz ±2% ±1% ±2% ±5%
16 MHz ±2% ±1% ±2% ±5%
8 MHz ±2% ±1% ±2% ±5%
1 kHz ±2% ±1% ±2% ±5%

  • Oscillation Mode:
  • Fast set-up time requires only 0.8ms (VDD: 5V Crystal: 4 MHz, C1/C2: 15pF) in XT mode and 10s in IRC mode (VDD: 5V, IRC: 4 MHz)
  • Eight Interrupt Sources: Three External and Five Internal:
  • TCC overflow interrupt
  • Input-port status changed interrupt (wake up from sleep mode)
  • External interrupt
  • ADC completion interrupt
  • Comparator status change interrupt
  • Low voltage detect (LVD) interrupt
  • PWM1~2 period match interrupt
  • PWM1~2 duty match interrupt
  • Package Type:
  • 10-pin MSOP 118mil: EM78P372NMS10J/S
  • 10-pin SSOP 150mil: EM78P372NSS10J/S
  • 14-pin DIP 300mil: EM78P372ND14J/S
  • 14-pin SOP 150mil: EM78P372NSO14J/S
  • 16-pin SOP 150mil: EM78P372NSO16AJ/S
  • 18-pin DIP 300mil: EM78P372ND18J/S
  • 18-pin SOP 300mil: EM78P372NSO18J/S
  • 20-pin DIP 300mil: EM78P372ND20J/S
  • 20 pin SOP 300mil: EM78P372NSO20J/S
  • 20 pin SSOP 209mil: EM78P372NSS20J/S

Note: Green products do not contain hazardous .substances.

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