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   Product Introduction

EM78P301N is an 8-bit microprocessor designed and developed with low-power and high-speed CMOS technology. The device has an on-chip 1K?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 EM78P301N 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. Users can avail of the ELAN Writer to easily program their development code.

   Product Features

? CPU configuration

? 1K?13 bits on-chip ROM

? 80?8 bits on-chip registers (SRAM)

? 8-level stacks for subroutine nesting

? Less than 1.5 mA at 5V/4 MHz

? Typically 15 ?A, at 3V/32kHz

? Typically 2 ?A, during sleep mode

? I/O port configuration

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

? 12 I/O pins

? Wake-up port : P5

? 8 programmable pull-down I/O pins (P50~P57)

? 10 programmable pull-high I/O pins (P50~P57,P60, P67)

? 2 programmable open-drain I/O pins (P60, P67)

? 8 programmable high-sink current I/O pins(P50~P57, P60, P67)

? External interrupt : P60

? Operating voltage range:

? 2.1V~5.5V at 0?C~70?C (commercial)

? 2.3V~5.5V at -40?C~85?C (industrial)

? Operating frequency range (based on 2 clocks):

? 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

? Fast set-up time requires only 0.8ms (VDD: 5V Crystal: 4 MHz, C1/C2: 15pF) in XT mode and 10μs in IRC mode (VDD: 5V, IRC: 4 MHz)

? Peripheral configuration

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

? 4 programmable Level Voltage Detector(LVD) : 4.5V, 4.0V, 3.3V, 2.2V

? Power-on reset and three programmable level voltage reset

POR: 1.8V (Default), LVR: 4.0, 3.5, 2.7V

? 8-bit multi-channel Analog-to-Digital Converter with 12-bit resolution in Vref mode

? Two Pulse Width Modulation (PWM) with 8/10-bit resolution

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