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pic 单片机 学习 软件 及其 资料

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PIC单片机学习软件及其资料,pic,单片机,学习,软件,及其,资料

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PIC18F2455/2550/4455/455028/40/44-Pin High-Performance, Enhanced Flash USBMicrocontrollers with nanoWatt TechnologyUniversal Serial Bus Features:USB V2.0 CompliantLow Speed (1.5 Mb/s) and Full Speed (12 Mb/Supports Control, Interrupt, Isochronous andTransfersSupports up to 32 endpoints (16 bidirectional)1-Kbyte dual access RAM for USBOn-chip USB transceiver with on-chip voltageregulatorInterface for off-chip USB transceiverStreaming Parallel Port (SPP) for USB streamingtransfers (40/44-pin devices only)Power-Managed Modes:Run: CPU on, peripherals onIdle: CPU off, peripherals onSleep: CPU off, peripherals offIdle mode currents down to 5.8 礎 typicalSleep mode currents down to 0.1 礎 typicalTimer1 oscillator: 1.1 礎 typical, 32 kHz, 2VWatchdog Timer: 2.1 礎 typicalTwo-Speed Oscillator Start-upFlexible Oscillator Structure:Four Crystal modes including High Precision PLLfor USBTwo External Clock modes, up to 48 MHzInternal oscillator block:- 8 user-selectable frequencies, from31 kHz to 8 MHz- User-tunable to compensate for frequency driftSecondary oscillator using Timer1 32 kHzDual oscillator options allow microcontroller andUSB module to run at different clock speedsFail-Safe Clock Monitor- Allows for safe shutdown if any clock stopsPeripheral Highlights:High-current sink/source 25 mA/25 mAThree external interruptsFour Timer modules (Timer0 to Timer3)Up to 2 Capture/Compare/PWM (CCP) modules:- Capture is 16-bit, max. resolution 6.25 ns (TCY/16)- Compare is 16-bit, max. resolution 100 ns (TCY)- PWM output: PWM resolution is 1 to 10-bitEnhanced Capture/Compare/PWM (ECCP) module:- Multiple output modes- Selectable polarity- Programmable dead time- Auto-Shutdown and Auto-RestartEnhanced USART module:- LIN bus supportMaster Synchronous Serial Port (MSSP) modulesupporting 3-wire SPI (all 4 modes) and I2C Master and Slave modes10-bit, up to 13-channels Analog-to-Digital Convertermodule (A/D) with programmable acquisition timeDual analog comparators with input multiplexingSpecial Microcontroller Features:C compiler optimized architecture with optionalextended instruction set100,000 erase/write cycle Enhanced Flashprogram memory typical1,000,000 erase/write cycle Data EEPROMmemory typicalFlash/Data EEPROM Retention: 40 yearsSelf-programmable under software controlPriority levels for interrupts8 x 8 Single-Cycle Hardware MultiplierExtended Watchdog Timer (WDT):- Programmable period from 41 ms to 131sProgrammable Code ProtectionSingle-Supply 5V In-Circuit SerialProgramming (ICSP via two pins