General Description
The EM78P301N is an 8-bit microprocessor designed and developed with low-power and high-speed CMOS technology. The device has an on-chip 1Kx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.



 
Features
CPU Configuration
1Kx13 bits on-chip ROM
80x8 bits on-chip registers (SRAM)
8-level stacks for subroutine nesting
Less than 1.5 mA at 5V/4 MHz
Typically 15μA, at 3V/32kHz
Typically 2μA, 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 and Temperature Range:
2.1V~5.5V at 0°C~70°C (commercial)
2.3V~5.5V at -40°C~85°C (industrial)
Operating frequency range (base 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

All the four main frequencies can be trimmed by programming with six calibrated bits in the ICE300N Simulator. OTP is auto trimmed by ELAN Writer.
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)
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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 (2/3/4v) mode
Two Pulse Width Modulation (PWM) with 8-bit resolution
Nine available interrupts
TCC overflow interrupt
Input-port status changed interrupt (wake up from sleep mode)
External interrupt
ADC completion interrupt
Low voltage detect (LVD) interrupt
PWM 1~2 period match interrupt
PWM 1~2 duty match interrupt
Special Features
Programmable free running Watchdog Timer (4.5 ms:18 ms)
Power saving Sleep mode
Power-on voltage detector available
High EFT immunity (better performance at 4 MHz or below)
Package Type:
10-pin MSOP 118mil:EM78P301NMS10J
14-pin DIP 300mil:EM78P301ND14J
14-pin SOP 150mil:EM78P301NSO14J
Note:These are Green products that do not contain hazardous substances.