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    39R08A3 参数 Datasheet PDF下载

    39R08A3图片预览
    型号： 39R08A3
    PDF下载： 下载PDF文件 查看货源
    内容描述： [TSSOP20;8KFlash 1T8051MCU;工作电压: 1.8V ~ 5.5V  高速1T 架构，最高可达25MHz  1~8T 模式可使用软件编程  内置22.1184MHz RC 振荡器，及可程序化的分频器  8K 字节的片上闪存程序存储器  512 字节的标准的8052 RAM  双16-bit 数据指针 (DPTR0&DPTR1)  一个全双工通信的串行接口.附加波特率产生器  三个16-bit 的定时器/计数器（计时器0，1，2）  18 GPIOs(20L 封装脚位)，GPIOs 可选择四种型态 (准双向口、推挽、开漏、只输入)，默认准双向口(上 拉)  具有四级优先权的外部中断0&外部中断1  可编程的看门狗定时器（WDT）  一个IIC 接口（主/从机模式）  一个SPI 接口（主/从机模式）  4 路 10bit 脉宽调制(PWM)  4 路16bit 比较(PWM)/捕获/重载功能  8 路10bit 模拟数字转换（ADC）  片上内建比较器  片上闪存存储器支持ISP/IAP/ICP 及EEPROM 功能  ISP 服务程序存储空间设置为N*128 byte (N=0 to 8)  片上在线仿真功能(ICE)及片上在线调试功能(OCD)  键盘接口(KBI) 共4 个的中断源  ALE 输出选择  低电压中断/低电压复位(LVI/LVR ) ]
    分类和应用： 振荡器闪存计数器存储比较器通信可编程只读存储器电动程控只读存储器电可擦编程只读存储器
    文件页数/大小： 88 页 / 3085 K
    品牌： SYNCMOS [ SYNCMOS TECHNOLOGIES,INC ]
     浏览型号39R08A3的Datasheet PDF文件第2页浏览型号39R08A3的Datasheet PDF文件第3页浏览型号39R08A3的Datasheet PDF文件第4页浏览型号39R08A3的Datasheet PDF文件第5页浏览型号39R08A3的Datasheet PDF文件第6页浏览型号39R08A3的Datasheet PDF文件第7页浏览型号39R08A3的Datasheet PDF文件第8页浏览型号39R08A3的Datasheet PDF文件第9页  
    OB39R08A3
    SM39R08A3
    SM39R08A3
    8-Bit Micro-controller
    with 8KB+1KB ISP Flash
    & 512B RAM embedded
    Product List ................................................................................................................................................................. 3
    Description .................................................................................................................................................................. 3
    Ordering Information .................................................................................................................................................... 3
    Features ...................................................................................................................................................................... 3
    Pin Configuration ......................................................................................................................................................... 4
    Block Diagram ............................................................................................................................................................. 6
    Pin Description ............................................................................................................................................................ 7
    Special Function Register (SFR) .................................................................................................................................. 8
    Function Description .................................................................................................................................................. 12
    1.
    General Features .............................................................................................................................................. 12
    1.1
    Embedded Flash ....................................................................................................................................... 12
    1.2
    IO Pads..................................................................................................................................................... 12
    1.3
    Instruction timing Selection........................................................................................................................ 12
    1.4
    The Clock Out Selection............................................................................................................................ 13
    1.5
    RESET...................................................................................................................................................... 13
    1.5.1 Hardware RESET function .................................................................................................................... 13
    1.5.2 Software RESET function...................................................................................................................... 13
    1.5.3 Reset status .......................................................................................................................................... 14
    1.5.4 Time Access Key register (TAKEY)........................................................................................................ 14
    1.5.5 Software Reset register (SWRES) ......................................................................................................... 14
    1.5.6 Example of software reset ..................................................................................................................... 15
    1.6
    Clocks....................................................................................................................................................... 15
    2.
    Instruction Set ................................................................................................................................................... 16
    3.
    Memory Structure .............................................................................................................................................. 20
    3.1
    Program Memory ...................................................................................................................................... 20
    3.2
    Data Memory ............................................................................................................................................ 21
    3.3
    Data memory - lower 128 byte (00h to 7Fh) ............................................................................................... 21
    3.4
    Data memory - higher 128 byte (80h to FFh) ............................................................................................. 21
    3.5
    Data memory - Expanded 256 bytes ($00
    到
    $FF) ..................................................................................... 21
    4.
    CPU Engine ...................................................................................................................................................... 22
    4.1
    Accumulator .............................................................................................................................................. 22
    4.2
    B Register ................................................................................................................................................. 22
    4.3
    Program Status Word ................................................................................................................................ 23
    4.4
    Stack Pointer............................................................................................................................................. 23
    4.5
    Data Pointer .............................................................................................................................................. 23
    4.6
    Data Pointer 1 ........................................................................................................................................... 24
    4.7
    Clock control register................................................................................................................................. 24
    4.8
    Interface control register............................................................................................................................ 25
    5.
    GPIO ................................................................................................................................................................. 26
    6.
    Timer 0 and Timer 1........................................................................................................................................... 28
    6.1
    Timer/counter mode control register (TMOD) ............................................................................................. 28
    6.2
    Timer/counter control register (TCON) ....................................................................................................... 29
    6.3
    Peripheral Frequency control register ........................................................................................................ 30
    6.4
    Mode 0 (13-bit Counter/Timer)................................................................................................................... 30
    6.5
    Mode 1 (16-bit Counter/Timer)................................................................................................................... 31
    6.6
    Mode 2 (8-bit auto-reload Counter/Timer) .................................................................................................. 32
    6.7
    Mode 3 (Timer 0 acts as two independent 8 bit Timers / Counters) ............................................................ 32
    7.
    Timer 2 and Capture Compare Unit ................................................................................................................... 33
    7.1
    Timer 2 function ........................................................................................................................................ 36
    7.1.1 Timer mode........................................................................................................................................... 36
    7.1.2 Event counter mode .............................................................................................................................. 36
    7.1.3 Gated timer mode ................................................................................................................................. 37
    7.1.4 Reload of Timer 2.................................................................................................................................. 37
    7.2
    Compare function ...................................................................................................................................... 37
    7.2.1 Compare Mode 0 .................................................................................................................................. 38
    7.2.2 Compare Mode 1 .................................................................................................................................. 38
    Specifications subject to change without notice contact your sales representatives for the most recent information.
    ISSFD-M063
    Ver C
    SM39R08A3
    04/20/2013
    -1-

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