PIC16F877芯片解密
PIC16F877芯片解密核心特征:
*高性能的RISC CPU
*只有35条指令学习
*方案以外的所有单周期指令
这是两个周期分行
*运行速度:直流- 20 MHz时钟输入
直流- 200 ns指令周期
*高达8K x 14的字的FLASH程序存储器,
高达368× 8个字节的数据存储器(RAM)的
高达256× 8个字节的EEPROM数据存储器
*引脚兼容的PIC16C73B/74B/76/77
*中断功能(多达14个源)
* 8级深硬件堆栈
*直接,间接和相对寻址方式
*上电复位(POR)
*电定时器(PWRT)和
振荡器启动定时器(OST)
*看门狗定时器(WDT),带自己的片上RC
振荡器运行可靠
*可编程代码保护
*节电休眠模式
*选择的振荡器选项
*低功耗,高速CMOS闪存/ EEPROM
技术
*全静态设计
*在线串行编程(商标)(的ICSP)通过二
销
*单5V的在线串行编程能力
*调试电路通过两个引脚
*处理器的读/写访问程序存储器
*宽工作电压范围:2.0V至5.5V
*高吸入/源出电流:25 mA电流
*商业和工业温度范围
*低功耗:
-<2 mA典型@5V时,4兆赫
-20μA的典型@3V时,32千赫
-“1μA的典型待机电流
PIC16F877芯片解密 Features:
* Timer0: 8-bit timer/counter with 8-bit prescaler
* Timer1: 16-bit timer/counter with prescaler,
can be incremented during sleep via external
crystal/clock
* Timer2: 8-bit timer/counter with 8-bit period
register, prescaler and postscaler
* Two Capture, Compare, PWM modules
- Capture is 16-bit, max. resolution is 12.5 ns
- Compare is 16-bit, max. resolution is 200 ns
- PWM max. resolution is 10-bit
* 10-bit multi-channel Analog-to-Digital converter
(TM)
* Synchronous Serial Port (SSP) with SPI
(Master
2 (TM)
C (Master/Slave)
Mode) and I
* Universal Synchronous Asynchronous Receiver
Transmitter (USART/SCI) with 9-bit address
detection
* Parallel Slave Port (PSP) 8-bits wide, with
external RD
, WR and CS controls (40/44-pin only)
* Brown-out detection circuitry for
Brown-out Reset (BOR)