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   Product Introduction

The EM78P153K is an 8-bit microprocessor designed and developed with low-power and high-speed CMOS technology. The device has an on-chip 1024×13-bit Electrical One Time Programmable Read Only Memory (OTP-ROM). It provides a protection bit to prevent intrusion of user’s OTP memory code. Fifteen Code option bits are also available to meet user’s requirements.

With enhanced OTP-ROM features, the EM78P153K 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

? 32×8 bits on-chip registers (SRAM, general

purpose)

? 5-level stacks for subroutine nesting

? Less than 1.5 mA at 5V / 4 MHz

? Typically 15 μA at 3V / 32kHz

? Typically 1 μA during Sleep mode

I/O port configuration

? 2 bidirectional I/O ports : P5, P6

? 12 I/O pins

? Wake-up port : P6

? 6 Programmable pull-down I/O pins

? 7 programmable pull-high I/O pins

? 7 programmable open-drain I/O pins

? External interrupt : 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):

? IRC mode:

? Crystal mode:

DC ~ 20 MHz / 2clks @ 5V

DC ~ 8 MHz / 2clks @ 3V

DC ~ 4MHz / 2clks @ 2.1V

? ERC mode:

DC ~ 2 MHz / 2clks @ 2.1V

Peripheral configuration

? 8-bit Real Time Clock / Counter (TCC) with selective signal sources, trigger edges, and overflow interrupt

? Power-on reset and 3 programmable level voltage reset

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

? 2-/ 4 clocks per instruction cycle selected by code option

? High EFT immunity

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