常用PIC系列产品特性一览表 器件 存储器 类型 字数 EEPROM 数据 存储器 RAM I/O 引脚数 ADC （-Bit） 比较 器 运 放 定时器/WDT 串行接口 最高 速度 MHz 封装 PDIP /SOIC ICSP CCP / ECCP 输出电流 (per I/O) 振荡器 频率 (MHz) 参考 电压 VREF LCD PWM 堆栈 深度 High Voltage Wakeup On Change PIC16C432 OTP 2048x14 128 12 2 1-8bit/1-WDT 20 20 √ 25 mA 4 0 0 PIC16C433 OTP 2048x14 128 6 4/8 1-8bit/1-WDT 10 18 √ 25 mA 0 0 PIC16C505 OTP 1024x12 72 12 1-8bit/1-WDT 20 14 √ 25 mA 4 0 0 PIC16C54 OTP 512x12 25 12 1-8bit/1-WDT 20 18/20 20 mA 0 0 PIC16C54A OTP 512x12 25 12 1-8bit/1-WDT 20 18/20 20 mA 0 0 PIC16C54C OTP 512x12 25 12 1-8bit/1-WDT 40 18/20 20 mA 0 0 PIC16C55 OTP 512x12 24 20 1-8bit/1-WDT 20 28 20 mA 0 0 PIC16C554 OTP 512x14 80 13 1-8bit/1-WDT 20 18/20 √ 25 mA 0 0 PIC16C558 OTP 2048x14 128 13 1-8bit/1-WDT 20 18/20 √ 25 mA 0 0 PIC16C55A OTP 512x12 24 20 1-8bit/1-WDT 40 28 20 mA 0 0 PIC16C56 OTP 1024x12 25 12 1-8bit/1-WDT 20 18/20 20 mA 0 0 PIC16C56A OTP 1024x12 25 12 1-8bit/1-WDT 40 18/20 20 mA 0 0 PIC16C57 OTP 2048x12 72 20 1-8bit/1-WDT 20 28 20 mA 0 0 PIC16C57C OTP 2048x12 72 20 1-8bit/1-WDT 40 28 20 mA 0 0 PIC16C58B OTP 2048x12 73 12 1-8bit/1-WDT 40 18/20 20 mA 0 0 PIC16C620 OTP 512x14 80 13 2 1-8bit/1-WDT 20 18/20 √ 25 mA √ 0 0 PIC16C620A OTP 512x14 96 13 2 1-8bit/1-WDT 40 18/20 √ 25 mA √ 0 0 PIC16C621 OTP 1024x14 80 13 2 1-8bit/1-WDT 20 18/20 √ 25 mA √ 0 0 PIC16C621A OTP 1024x14 96 13 2 1-8bit/1-WDT 40 18/20 √ 25 mA √ 0 0 PIC16C622 OTP 2048x14 128 13 2 1-8bit/1-WDT 20 18/20 √ 25 mA √ 0 0 PIC16C622A OTP 2048x14 128 13 2 1-8bit/1-WDT 40 18/20/40 √ 25 mA √ 0 0 PIC16C62A OTP 2048x14 128 22 2-8bit/1-16bit/1-WDT I²C/ SPI 20 28/ √ 1 25 mA 1 0 0 PIC16C62B OTP 2048x14 128 22 2-8bit/1-16bit/1-WDT I²C /SPI 20 28 √ 1 25 mA 1 0 0 PIC16C63 OTP 4096x14 192 22 2-8bit/1-16bit/1-WDT USART/I²C /SPI 20 28 √ 2 25 mA 2 0 0 PIC16C63A OTP 4096x14 192 22 2-8bit/1-16bit/1-WDT USART/I²C/SPI 20 28 √ 2 25 mA 2 0 0 PIC16C642 OTP 4096x14 176 22 2 1-8bit/1-WDT 20 28 √ 25 mA √ 0 0 PIC16C64A OTP 2048x14 128 33 2-8bit/1-16bit/1-WDT I²C /SPI 20 40/44 √ 1 25 mA 1 0 0 PIC16C65A OTP 4096x14 192 33 2-8bit/1-16bit/1-WDT USART/I²C/SPI 20 40/44 √ 2 25 mA 2 0 0 PIC16C65B OTP 4096x14 192 33 2-8bit/1-16bit/1-WDT USART/I²C/SPI 20 40/44 √ 2 25 mA 2 0 0 PIC16C66 OTP 8192x14 368 22 2-8bit/1-16bit/1-WDT USART/I²C/SPI 20 28 √ 2 25 mA 2 0 0 PIC16C662 OTP 4096x14 176 33 2 1-8bit/1-WDT 20 40/44 √ 25 mA √ 0 0 PIC16C67 OTP 8192x14 368 33 2-8bit/1-16bit/1-WDT USART/I²C /SPI 20 40/44 √ 2 25 mA 2 0 0 PIC16C71 OTP 1024x14 36 13 4/8 1-8bit/1-WDT 20 18 √ 25 mA 0 0 PIC16C710 OTP 512x14 36 13 4/8 1-8bit/1-WDT 20 18/20 √ 25 mA 0 0 PIC16C711 OTP 1024x14 68 13 4/8 1-8bit/1-WDT 20 18/20 √ 25 mA
上传时间： 2013-10-12
上传用户：xjy441694216
Digitemp Junior – An RS-232 Port-Powered Digital Thermometer Digitemp Jr. is a device that is designed to measure and report ambient temperature. When connected to an RS-232 port on any PC, it will periodically measure and report in ASCII form the ambient temperature in degrees Celsius. These temperature readings can be monitored with any terminal program. If the terminal program supports capture to disk, the temperature readings can be saved to disk for further analysis with a spreadsheet program or other data analysis tool. The simple ASCII output format of Digitemp Jr. makes it rel- atively easy to write custom software for receiving, recording, and analyzing ambient temperature data. Best of all, Digitemp Jr. requires no external power sup- plies or batteries. It is powered directly by the RS-232 port.
上传时间： 2013-10-21
上传用户：baitouyu
为解决电致变色器件的颜色变化受外界环境颜色控制的问题，设计了一种基于单片机的便携式颜色自适应识别电路。与传统颜色识别电路相比较，该电路利用数字式的颜色传感器来获取外界环境颜色，产生的数字颜色信号易于单片机进行处理。在电路中，下位机部分主要负责获取电致变色器件变色参数及控制电致变色器件的颜色变化;而上位机部分主要负责把下位机获取的电致变色器件变色参数进行电压到颜色的曲线拟合，并通过蓝牙通信把拟合曲线参数传递给下位机。结果表明，该电路能自动根据环境颜色提供-4~4 V范围步进为0.1 V的电压来驱动电致变色器件的颜色显示，与传统的颜色识别电路设计相比，识别的精度和速度都得到了明显改善。 Abstract: In this paper， a portable adaptive circuit for color identification(PACCI) based on MCU was designed. Compared to the traditional color identification circuit， the PACCI adopts digital sensor to detect the color data from external environment and further generate digital color data， which can be processed easily by MCU. In PACCI， the slave is mainly responsible for detecting the color parameters of the corresponding elcreochromic device and further driving it. For the master， which is mainly responsible for the color curve fitting based on the parameters of the electrochromic device， and transmits the fitting parameters to the slave through the bluetooth device. The results show that the PACCI can provide the basis voltage range from -4V to 4V automatically based on the colors of external environment with step as 0.1V to drive the corresponding electrochromic device. Compared to the traditional color recognition circuit， the recognition accuracy and speed of PACCI have been improved significantly.
上传时间： 2013-11-09
上传用户：franktu
为了使音频信号分析仪小巧可靠，成本低廉，设计了以2片MSP430F1611单片机为核心的系统。该系统将音频信号送入八阶巴特沃兹低通滤波器，对信号进行限幅放大、衰减、电平位移、缓冲，并利用一单片机负责对前级处理后的模拟信号进行采样，将采集得到的音频信号进行4 096点基2的FFT计算，并对信号加窗函数提高分辨率，另一单片机负责对信号的分析及控制显示设备。此设计精确的测量了音频信号的功率谱、周期性、失真度指标，达到较高的频率分辨率，并能将测量结果通过红外遥控器显示在液晶屏上。 Abstract: o make the audio signal analyzer cheaper， smaller and more reliable， this system sends the audio signal to the eight-order butterworth filter， and then amplifies， attenuates， buffers it in a limiting range， transfers the voltage level of the signal before utilizing two MSP430F1611 MCU to realize the audio analysis. One is charged for sampling and dealing with the processed audio signal collected by the 4096 point radix-2 FFT calculation and imposes the window function to improve the frequency resolution. The other one controls the display and realizes the spectrum， periodicity， power distortion analysis in high resolution which is displayed in the LCD screen through the infrared remote control.
上传时间： 2013-12-11
上传用户：jasonheung
现有基于MAX7219芯片的数码管驱动电路只适用于小尺寸LED，为扩展其使用范围，在介绍动态显示芯片MAX7219功能的基础上，提出了一个基于该芯片的8位高亮度8英寸数码管驱动电路。电路保留了MAX7219芯片的功能强大、编程简单等优点，通过74LS273锁存器和ULN2803达林顿驱动器，实现了对任意大尺寸数码管提供较高电压和电流驱动的静态显示，并亮度可调。 Abstract: The existing display-driving circuit based on MAX7219 was only applicable to small-size LED. To expand its use, based on the function introduction of dynamic display chip MAX7219, a display-driving circuit for high-brightness 8-bit LED with the size of 8-inch was proposed. The advantages of MAX7219 were retained, such as powerful function and simple programming. Static display with adjustable brightness for large-size LED with higher voltage and current was achieved with the help of 74LS273 and ULN2803.
上传时间： 2013-10-23
上传用户：31633073
设计了一种基于PIC16C71单片机的数字水温配制阀。该配制阀采用NTC热敏电阻作温度传感器，与固定电阻组成简单分压电路作为水温测量电路，利用PIC16C71单片机内置的8位A/D转换器把热敏电阻上的模拟电压转换为数字量，PIC16C71单片机控制直流电机驱动混水阀调节冷热水的混合比例实现水温调节。给出了控制电路图，对水温测量电路的参数选择和测温精度作了详细讨论。实验和分析表明，选用阻值较大的NTC热敏电阻和分压电阻可较好地解决热敏电阻因功耗较大造成的热击穿问题。 Abstract: A digital valve for controlling water temperature based on PIC16C71 was presented in this paper.A bleeder circuit which consisted of a NTC thermistor as temperature sensor and a fixed resistance was designed as water temperature measuring circuit.The analog voltage on the thermistor was converted into digital signal by a 8-bit A/D converter embedded in PIC16C71. Based on the digital signal， the MCU PIC16C71 drived the valve by a DC motor to adjust the water temperature through adjusting the proportion of hot water and cold water.The circuit diagram of controller was given，the principle，the component parameters and the accuracy of measuring temperatures were also dissertated in detail. It was found by experiment and analysis that thermal breakdown of thermistor caused by high power could be solved by selecting thermistor and fixed resistance with high impedance value.
上传时间： 2013-11-08
上传用户：Yue Zhong
目录： 1. Character Type Functions － 字符类型函数 2. Standard C Input/Output Functions － 标准输入输出函数 3. Standard Library Functions － 标准库和内存分配函数 4. Mathematical Functions － 数学函数 5. String Functions － 字符串函数 6. BCD Conversion Functions － BCD 转换函数 7. Memory Access Functions － 存储器访问函数 8. Delay Functions － 延时函数 9. LCD Functions － LCD函数 10. LCD Functions for displays with 4x40 characters － 4×40 字符型LCD函数 11. LCD Functions for displays connected in 8 bit memory mapped mode －以8 位外部存储 器模式接口的LCD显示函数 12. I2C Bus Functions － I2C 总线函数 13. National Semiconductor LM75 Temperature Sensor Functions － LM75 温度传感器函数 14. Dallas Semiconductor DS1621 Thermometer/Thermostat Functions － DS1621 温度计函 数 15. Philips PCF8563 Real Time Clock Functions － PCF8563 实时时钟函数 16. Philips PCF8583 Real Time Clock Functions － PCF8583 实时时钟函数 17. Dallas Semiconductor DS1302 Real Time Clock Functions － DS1302 实时时钟函数 18. Dallas Semiconductor DS1307 Real Time Clock Functions － DS1307 实时时钟函数 19. 1 Wire Protocol Functions － 单线通讯协议函数 20. Dallas Semiconductor DS1820/DS1822 Temperature Sensors Functions － DS1820/1822 温度传感器函数 21. SPI Functions － SPI 函数 22. Power Management Functions － 电源管理函数 23. Gray Code Conversion Functions － 格雷码转换函数
上传时间： 2013-10-22
上传用户：归海惜雪
Digitemp Jr. is a device that is designed to measure and report ambient temperature. When connected to an RS-232 port on any PC, it will periodically measure and report in ASCII form the ambient temperature in degrees Celsius. These temperature readings can be monitored with any terminal program. If the terminal program supports capture to disk, the temperature readings can be saved to disk for further analysis with a spreadsheet program or other data analysis tool. The simple ASCII output format of Digitemp Jr. makes it relatively easy to write custom software for receiving, recording, and analyzing ambient temperature data. Best of all, Digitemp Jr. requires no external power supplies or batteries. It is powered directly by the RS-232 port.
上传时间： 2013-10-20
上传用户：Maple
Mega16是一款采用先进RISC精简指令，内置A/D的8位单片机，可支持低电压联机 Flash和EEPROM 写入功能；同时还支持 Basic和C 等高级语言编程。用它设计电子时钟不仅成本低，硬件简单，而且很容易实现系统移植。介绍了如何利用AVR系列单片机Mega16及1602字符液晶来设计电子时钟的方法，同时给出了相应的电路原理及部分语言程序。 Abstract: ?Mega16 is a high-performance, low power consumption, the use of advanced RISC concise instructions, built-in A/D 8-bit microcontrollers, the on-line support for low-voltage Flash, EEPROM write function. Except Mega16 also support the Basic, C, and other high-level language programming.The electronic clock which is deisgned by Mega16 is not only low-cost, simple hardware, but easy to achieve system migration.The design method of electrioic clock based on the AVR Mega16 and character LCD1602 is introduced in this paper,and the corresponding circuit electrionic and some language program are given.
上传时间： 2014-12-27
上传用户：zl5712176
气压是气象监测中的一个重要参数，提出了一种气压数据采集模块设计方案，该模块采用数字气压传感器MS5534B、MSP430单片机MSP430F2272和带实时时钟（RTC）64 KB铁电存储器。通过低功耗软件设计方法以微安级整体平均功耗实现了气压数据的采集和存储，适合电池供电的连续高精度气压采集应用。给出了模块的软硬件设计以及MS5534B的性能指标和使用经验。 Abstract: Air pressure is an important parameter in weather monitor.This paper futs forward a new design scheme of low power-air pressure data acquisition module.The module uses a digital output barometer sensor MS5534B,MSP430 microcontroller MSP430F2272 and integrated RTC 64KB FRAM,precision air pressure measurement and storage chip.Another point of this module is low power consumption, so it is well suited for battery powered air pressure data acquisition applications. At the same time,the software and hardware deign of module is presented,And the speciaties and use notices of MS5534B are given.
上传时间： 2014-12-27
上传用户：drink！
