The EM78P259N is an 8-bit microprocessor designed and developed with low-power and high-speed CMOS technology. The device has an on-chip 2Kx13-bit Electrical One Time Programmable Read Only Memory (OTP-ROM). It provides a protection bit to prevent intrusion of user's code. Three Code option words are also available to meet user's requirements.
With its enhanced OTP-ROM feature, the EM78P259N 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. User can avail of the ELAN Writer to easily program his development code.
SN8P2714拥有一个RISC-like的高性能和低功耗系统。1T(一条指令周期就是一个时钟)结构,16MIPS的计算能力。另外,高EFT性能使其适合应用于高干扰的工业环境。SN8P2714的IC结构一流包括2K-word的程序内存(OTP ROM)128-byte的数据存储器(RAM)2个8-bit的定时计数器(TC0,TC1)一个看门狗定时器4个中断源(TC0,TC1,INT0,INT1)7-bit的DAC转换8通道12-bit的ADC转换2通道的PWM输出(PWM0,PWM1)buzzer输出(BZ0,BZ1)8层堆栈缓存器SN8P2714提供4种不同的振荡器模式给系统作为系统时钟,包括高/低速晶体振荡器、陶瓷谐振器和廉价的RC振荡器。SN8P2714包括一个由程控的内部低频RC振荡器作为低速模式的时钟源。
EM78P156是台湾义隆公司采用高速CMOS工艺制造的8位单片机,其内部集有1024×13bitOTP(一次性)ROM(程序存储器),用户通过仿真器编写和调试正确的机器码文件通过编程器烧录入芯片,有6个选择位可满足不同产品的要求,同时有密码保护位防止程序数据被读出. 工作电压:2.3—5.5V 工作温度:0-70℃ 时钟频率:DC-20MHz,晶振模式DC-20MHz(5V),DC-8MHz(3V),DC-4MHz(2.3V), 低功耗:在5V/4MHz工作条件下,电流小于1.6mA,3V/32kHz条件下,电流为15uA,睡眠模式下电流仅为1uA. 1024×13bit程序存储器(OTPROM),48×8片内RAM(SDRAM). 片内4MHz校准RC振荡器 可编程振荡器起振时间预分频器 可按位编程 一个密码保护位 2个双向I/O端口 5级堆栈 掉电模式 3个中断源:TCC溢出中断,睡眠状态唤醒中断,外部中断. 可编程自由运行看门狗定时器(WDT) 有8个引脚可编程为上拉,有7个引脚可编程为下拉. 有8个引脚可编程为漏极开路.2个引脚可编程设置为R-option. 每个指令周期为两个时钟周期,99%为单指令周期. 具有电压检测单元,检测范围2.0V±0.15V. EM78P156为14pin封装,有:DIP-18(3...