松翰SN8P2501功能特性 :
存储器 3个中断源 OTP ROM 空间:1K * 16位。 2 个内部中断源:T0,TC0。 RAM 空间:48 字节。 1 个外部中断源:INT0。 4 层堆栈缓存器。
两个 8位定时/计数器 I/O 引脚配置 T0:基本定时/计数器,具有 0.5sec 实时时钟功能(RT 输入输出双向端口:P0、P1、P2、P5。
TC0:自动装载定时器/计数器/蜂鸣器(Buzzer)输出。 单向输入引脚:P1.1。 可编程的漏极开路引脚:P1.0。
内置看门狗定时器,其时钟源由内部低速 RC振荡器提 具有唤醒功能的端口:P0、P1 电平变化触发。 (16KHz @3V;32KHz @5V) 内置上拉电阻端口:P0、P1、P2、P5。
外部中断引脚:P0.0,由寄存器 PEDGE控制, 双时钟系统 其触发方式为上升沿或下降沿。 外部高速时钟:RC 模式高达 10MHz。
外部高速时钟:晶振模式高达 16MHz。 3级低电压检测系统(LVD) 内部高速时钟: 16MHz RC (Fcpu 仅支持Fosc/4~Fosc/ 可监控系统电源 (若低于设定LVD选项则发生复位) 。
内部低速时钟:RC 振荡器,16KHz(3V),32KHz(5 强大的指令系统 ? 工作模式 单周期指令系统(1T)。 普通模式:高、低速时钟同时工作。
大部分指令仅需一个周期。 低速模式:只有低速时钟工作。
跳转指令 JMP可在整个ROM 区执行。
睡眠模式:高、低速时钟都停止工作。
子程序调用指令 CALL可在整个ROM 区执行。
绿色模式:由 T0 周期性的唤醒。
查表指令 :MOVC 可寻址整个 ROM区。
封装形式: DIP 14 pins/ 8 Pins ;SOP 14 pins / 8 pins 。
The EM78P468N/L is an 8-bit microprocessor designed and developed with low-power and high-speed CMOStechnology. Integrated onto a single chip are on chip Watchdog Timer (WDT), Data RAM, ROM, programmable real timeclock counter, internal/external interrupt, power down mode, LCD driver, infrared transmitter function, and tri-state I/O.The series has an on-chip 4K×13-bit Electrical One Time Programmable Read Only Memory (OTP-ROM). TheEM78P468L provides multi-protection bits to prevent intrusion of user’s OTP memory code. Seven Code option bits areavailable to meet user’s requirements. Special 13 bits customer ID options are provided as well.With its enhanced OTP-ROM feature, the EM78P468N/L provides a convenient way of developing and verifying user’sprograms. Moreover, this OTP device offers the advantages of easy and effective program updates, using developmentand programming tools. User can avail of the ELAN Writer to easily program his development code. Features CPU Conf...
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.