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PIC16F685-I/SO 产品设计参考手册 - Microchip（微芯）
制造商:
Microchip（微芯）
分类:
微控制器
封装:
SOIC-20
描述:
MICROCHIP PIC16F685-I/SO 微控制器, 8位, 闪存, AEC-Q100, PIC16F, 20 MHz, 7 KB, 256 Byte, 20 引脚, SOIC
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PIC16F685-I/SO数据手册
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© 2009 Microchip Technology Inc. DS01146B-Page 1-1
8-pin Flash PIC
®
Microcontroller Tips ‘n Tricks
CHAPTER 1
8-Pin Flash PIC
®
Microcontrollers
Tips ‘n Tricks
Table Of Contents
TIPS ‘N TRICKS WITH HARDWARE
TIP #1: Dual Speed RC Oscillator ................ 1-2
TIP #2: Input/Output Multiplexing .................. 1-2
TIP #3: Read Three States From One Pin .... 1-3
TIP #4: Reading DIP Switches ...................... 1-3
TIP #5: Scanning Many Keys With
One Input .......................................... 1-4
TIP #6: Scanning Many Keys and Wake-up
From Sleep ....................................... 1-4
TIP #7: 8x8 Keyboard with 1 Input ................ 1-5
TIP #8: One Pin Power/Data ......................... 1-5
TIP #9: Decode Keys and ID Settings .......... 1-6
TIP #10: Generating High Voltages ................ 1-6
TIP #11: Vd d Self Starting Circuit.................... 1-7
TIP #12: Using PIC
®
MCU A/D For Smart
Current Limiter .................................. 1-7
TIP #13: Reading A Sensor With Higher
Accuracy ........................................... 1-8
TIP #13.1: Reading A Sensor With Higher
Accuracy – RC Timing Method ......... 1-8
TIP #13.2: Reading A Sensor With Higher
Accuracy – Charge Balancing
Method ............................................. 1-10
TIP #13.3: Reading A Sensor With Higher
Accuracy – A/D Method .................... 1-11
TIP #14: Delta Sigma Converter ..................... 1-11
TIPS ‘N TRICKS WITH SOFTWARE
TIP #15: Delay Techniques ............................. 1-12
TIP #16: Optimizing Destinations ....................1-13
TIP #17: Conditional Bit Set/Clear ..................1-13
TIP #18: Swap File Register with W ............... 1-14
TIP #19: Bit Shifting Using Carry Bit ............... 1-14
TIPS ‘N TRICKS INTRODUCTION
Microchip continues to provide innovative
products that are smaller, faster, easier to
use and more reliable. The 8-pin Flash PIC
®
microcontrollers (MCU) are used in an wide
range of everyday products, from toothbrushes,
hair dryers and rice cookers to industrial,
automotive and medical products.
The PIC12F629/675 MCUs merge all the
advantages of the PIC MCU architecture and
the exibility of Flash program memory into
an 8-pin package. They provide the features
and intelligence not previously available due
to cost and board space limitations. Features
include a 14-bit instruction set, small footprint
package, a wide operating voltage of 2.0 to
5.5 volts, an internal programmable 4 MHz
oscillator, on-board EEPROM data memory,
on-chip voltage reference and up to 4 channels
of 10-bit A/D. The exibility of Flash and an
excellent development tool suite, including
a low-cost In-Circuit Debugger, In-Circuit
Serial Programming™ and MPLAB
®
ICE 2000
emulation, make these devices ideal for just
about any embedded control application.
TIPS ‘N TRICKS WITH HARDWARE
The following series of Tips ’n Tricks can be
applied to a variety of applications to help make
the most of the 8-pin dynamics.
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