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.

Features

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

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

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

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

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.