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EM78P176N

The EM78P176N is an 8-bit microprocessor designed and developed with low-power and high-speed CMOS technology. It has an on-chip 1K×13-bit Electrical One Time Programmable Read Only Memory (OTP-ROM). They provide a protection bit to prevent intrusion of user’s OTP memory code. Three Code option words are also available to meet user’s requirements. With its enhanced OTP-ROM features, the EM78P176N 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 your development code.

CPU configuration

1Kx13 bits on chip ROM

48×8 bits on-chip registers (SRAM, General purpose)

5-level stacks for subroutine nesting

4 programmable level voltage detector LVD : 4.5, 4.0, 3.3, 2.2V

3 programmable level voltage reset LVR : 4.0, 3.5, 2.7V

Less than 1.5mA at 5V/4MHz

Typically 15 μA, at 3V/32kHz

Typically 1 μA, during Sleep mode

I/O port configuration

3 bidirectional I/O ports : P5, P6, P7

18 I/O pins

Wake-up port : P6

7 Programmable pull-down I/O pins

8 programmable pull-high I/O pins

8 programmable open-drain I/O pins

External interrupt with wake-up : P60

Operating voltage range:

2.1V~5.5V at 0~70°C (Commercial)

2.3V~5.5V at -40~85°C (Industrial)

Operating frequency range (base on 2 clocks):

Crystal mode:

DC~20MHz/2clks @ 5V

DC~8MHz/2clks @ 3V

DC~4MHz/2clks @ 2.1V

ERC mode:

DC~2 MHz/2clks @ 2.1V

IRC mode:

Internal RC Frequency Drift Rate

Temperature(-40°C~85°C) Voltage(2.1V~5.5V) Process Total

4MHz ±2% ±3% ±2% ±7%

16MHz ±2% ±3% ±2% ±7%

8MHz ±2% ±3% ±2% ±7%

1MHz ±2% ±3% ±2% ±7%

Peripheral configuration

8-bit real time clock/counter (TCC) with selective signal sources, trigger edges, and overflow interrupt

External interrupt input pin

2/4 clocks per instruction cycle selected by code option

Power down (Sleep) mode

High EFT immunity

Four available interrupts

TCC overflow interrupt

Input-port status changed interrupt

External interrupt

Low voltage detect interrupt

Special Features

Programmable free running watchdog timer

Power-on voltage detector available (1.8~1.9V)

Selectable Oscillation mode

Package Type:

20-pin SSOP 209mil : EM78P176NSS20J/S

20-pin SOP 300mil : EM78P176NSO20J/S

18-pin DIP 300mil : EM78P176ND18J/S

18-pin SOP 300mil : EM78P176NSO18J/S

10-pin SSOP 150mil : EM78P176NSS10J/S

10-pin MSOP 118mil : EM78P176NMS10J/S

Note: Green products do not contain hazardous .substances.