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器件3D模型￥ 32.401
PIC16F914T-I/PT 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:
TQFP-44
描述:
PIC16 系列 256 B RAM 7 kB 闪存 8位 CMOS 微控制器 - TQFP-44
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
原理图在P94P98P100P106P107P110P112P113P114
应用领域在P29P83
导航目录
PIC16F914T-I/PT数据手册
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若手册格式错乱，请下载阅览PDF原文件
© 2009 Microchip Technology Inc. Page i-DS01146B
8-pin Flash PIC
®
Microcontroller Tips ‘n Tricks
Tips ‘n Tricks
TABLE OF CONTENTS
8-pin Flash PIC
®
Microcontrollers
Tips ‘n Tricks
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
PIC
®
Microcontroller Low Power
Tips ‘n Tricks
GENERAL LOW POWER TIPS ‘N TRICKS
TIP #1 Switching Off External Circuits/
Duty Cycle .................................................. 2-2
TIP #2 Power Budgeting ........................................ 2-3
TIP #3 Conguring Port Pins ................................. 2-4
TIP #4 Use High-Value Pull-Up Resistors .............. 2-4
TIP #5 Reduce Operating Voltage ......................... 2-4
TIP #6 Use an External Source for
CPU Core Voltage ...................................... 2-5
TIP #7 Battery Backup for PIC MCUs ................... 2-6
DYNAMIC OPERATION TIPS ‘N TRICKS
TIP #8 Enhanced PIC16 Mid-Range Core ............. 2-6
TIP #9 Two-Speed Start-Up ................................... 2-7
TIP #10 Clock Switching .......................................... 2-7
TIP #11 Use Internal RC Oscillators ........................ 2-7
TIP #12 Internal Oscillator Calibration ..................... 2-8
TIP #13 Idle and Doze Modes ................................. 2-8
TIP #14 Use NOP and Idle Mode .............................. 2-9
TIP #15 Peripheral Module Disable
(PMD) Bits .................................................. 2-9
STATIC POWER REDUCTION TIPS ‘N TRICKS
TIP #16 Deep Sleep Mode.......................................2-10
TIP #17 Extended WDT and Deep
Sleep WDT .................................................2-10
TIP #18 Low Power Timer1 Oscillator and RTCC ....2-10
TIP #19 Low Power Timer1 Oscillator Layout ..........2-11
TIP #20 Use LVD to Detect Low Battery ..................2-11
TIP #21 Use Peripheral FIFO and DMA...................2-11
TIP #22 Ultra Low-Power
Wake-Up Peripheral ...................................2-12
PIC
®
Microcontroller CCP and ECCP
Tips ‘n Tricks
CAPTURE TIPS ‘N TRICKS
TIP #1: Measuring the Period of a Square Wave ... 3-3
TIP #2: Measuring the Period of a
Square Wave with Averaging ..................... 3-3
TIP #3: Measuring Pulse Width .............................. 3-4
TIP #4: Measuring Duty Cycle ................................ 3-4
TIP #5: Measuring RPM Using an Encoder ............ 3-5
TIP #6: Measuring the Period of an Analog Signal . 3-6
COMPARE TIPS ‘N TRICKS
TIP #7: Periodic Interrupts ...................................... 3-8
TIP #8: Modulation Formats.................................... 3-9
TIP #9: Generating the Time Tick for a RTOS ........3-10
TIP #10: 16-Bit Resolution PWM ..............................3-10
TIP #11: Sequential ADC Reader .............................3-11
TIP #12: Repetitive Phase Shifted Sampling ............3-12
PWM TIPS ‘N TRICKS
TIP #13: Deciding on PWM Frequency.....................3-14
TIP #14: Unidirectional Brushed DC
Motor Control Using CCP ...........................3-14
TIP #15: Bidirectional Brushed DC
Motor Control Using ECCP ........................3-15
TIP #16: Generating an Analog Output .....................3-16
TIP #17: Boost Power Supply ...................................3-17
TIP #18: Varying LED Intensity .................................3-18
TIP #19: Generating X-10 Carrier Frequency ...........3-18
COMBINATION CAPTURE AND COMPARE TIPS
TIP #20: RS-232 Auto-baud ......................................3-19
TIP #21: Dual-Slope Analog-to-Digital Converter .....3-21
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