EM78156E是一个低功耗,高性能CMOS 8位单片机,片内含4k Bytes ISP(In-system programmable)的可反复擦写1000次的Flash只读程序存储器,器件采用ATMEL公司的高密度、非易失性存储技术制造,兼容标准MCS-51指令系统及80C51引脚结构,芯片内集成了通用8位中央处理器和ISP Flash存储单元,功能强大的微型计算机的EM78156E可为许多嵌入式控制应用系统提供高性价比的解决方案。
EM78156E具有如下特点:40个引脚,4k Bytes Flash片内程序存储器,128 bytes的随机存取数据存储器(RAM),32个外部双向输入/输出(I/O)口,5个中断优先级2层中断嵌套中断,2个16位可编程定时计数器,2个全双工串行通信口,看门狗(WDT)电路,片内时钟振荡器。
此外,EM78156E设计和配置了振荡频率可为0Hz并可通过软件设置省电模式。空闲模式下,CPU暂停工作,而RAM定时计数器,串行口,外中断系统可继续工作,掉电模式冻结振荡器而保存RAM的数据,停止芯片其它功能直至外中断激活或硬件复位。同时该芯片还具有PDIP、TQFP和PLCC等三种封装形式,以适应不同产品的需求。
邦凯科技在EM78156E解密等EMC系列单片机解密/IC芯片解密领域已经取得一系列技术突破,可针对多个系列IC芯片及单片机提供高效可靠的解密方案,有EM78156E解密需求者请与邦凯科技联系咨询解密详情及报价,这里我们仅对EM78156E单片机功能特征等方面做简单介绍。
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关于EM78156E单片机:
EM78156E is an 8-bit microprocessor with low-power and high-speed CMOS technology. Integrated into a single chip are on-chip watchdog timer (WDT), RAM,ROM, real time clock/counter, external and interrupt, power down mode, and tri-state I/O.
EM78156E FEATURES
Operating voltage range : 2.3V~5.5V
Operating temperature range: 0°C~70°C
Operating frequency rang (base on 2 clocks ):
Crystal mode: DC~20MHz at 5V, DC~8MHz at 3V, DC~4MHz at 2.3V.
ERC mode: DC~4MHz at 5V, DC~4MHz at 3V, DC~4MHz at 2.3V.
Low power consumption:
Less then 2.0 mA at 5V/4MHz
Typically 15 μA at 3V/32KHz
Typically 1 μA during sleep mode
1K × 13 bits on chip ROM
One configuration register to accommodate user’s requirements
48× 8 bits on chip registers (SRAM, general purpose register)
2 bi-directional I/O ports
5 level stacks for subroutine nesting
8-bit real time clock/counter (TCC) with selective signal sources, trigger edges, and overflow interrupt
Two clocks per instruction cycle
Power down (SLEEP) mode
Three available interruptions
TCC overflow interrupt
Input-port status changed interrupt (wake up from sleep mode)
External interrupt
Programmable free running watchdog timer
8 programmable pull-high pins
7 programmable pull-down pins
8 programmable open-drain pins
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