世纪芯集成电路有限公司多年来一直专注加密芯片功能的设计和软件算法的研究、算法的软件实现,如:des加密、对称加密、
md5加密等加解密算法的研究,及其硬件功能的实现、系统软件的开发和芯片底层驱动的设计,在U/CPLD/SPLD/PLD芯片解密技
术的领域积累了丰富的开发经验。我们长期针对业内的各种疑难芯片或单片机解密技术进行集中攻关,已率先突破业内数十种
单片机解密难题,是目前国内最权威的芯片解密技术研究机构。
以下我们对W78IE54 单片机基本功能特征的简单介绍,仅供参考:
FEATURES
Fully static design 8 - bit CMOS microcontroller
Wide supply voltage of 2.4V to 5.5V
Wide operating temperature range from - 40 °C to 85 °
DC - 40 MHz operation
256 bytes of on - chip scratchpad RAM
16 KB electrically erasable/programmable MTP - ROM
64 KB program memory address space
64 KB data memory address space
Four 8 - bit bi - directional ports
One extra 4 - bit bit - addressable I/O port, additional INT2 / INT3
(available on 44-pin PLCC package)
Three 16 - bit time r/counters
One full duplex serial port(UART)
Watchdog Timer
Eight sources, two - level interrupt capability
EMI reduction mode
Built - in power management
Code protection mechanism
Packages:
DIP 40: W78IE54
PLCC 44: W78IE54P
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