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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.

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