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PIC18F43K22特性概况与IC解密

时间:2010-08-27 09:09:23

有关PIC18F43K22解密,他的一些基本的特征需要我们去了解。在单片机解密、IC解密过程中,不同的技术手法可能产生的解密解密就不同,而解密手法的选择除了考虑解密者本身的技术经验外,还应该对需解密的单片机有一定的了解。
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以下是我们对PIC18F43K22芯片的简单介绍供各位参考:

Features
High Performance RISC CPU:
•  C Compiler optimized architecture/instruction set
•  Data EEPROM to 1024 bytes
•  Linear program memory addressing to 64 Kbytes
•  Linear data memory addressing to 4 Kbytes
•  Up to 16 MIPS operation
•  16-bit wide instructions, 8-bit wide data path
•  Priority levels for interrupts
•  31-level, software accessible hardware stack
•  8 x 8 Single-Cycle Hardware Multiplier Extreme Low-Power Management with nanoWatt XLP™:
•  Sleep mode: 100 nA, typical
•  Watchdog Timer: 500 nA, typical
•  Timer1 Oscillator: 500 nA @ typical 32 kHz Flexible Oscillator Structure:
•  Precision 16 MHz internal oscillator block: - Factory calibrated to ± 1% - Software selectable frequencies range of 31 kHz to 16 MHz - 64 MHz performance available using PLL – no external components required
•  Four Crystal modes up to 64 MHz
•  Two external Clock modes up to 64 MHz
•  4X Phase Lock Loop (PLL)
•  Secondary oscillator using Timer1 @ 32 kHz
•  Fail-Safe Clock Monitor: - Allows for safe shutdown if peripheral clock stops
•  Two-Speed Oscillator Start-up Special Microcontroller Features:
•  Full 5.5V operation (PIC18F2XK22/4XK22)
•  Low voltage option available for 1.8V-3.6V operation (PIC18LF2XK22/4XK22)
•  Self-reprogrammable under software control
•  Power-on Reset (POR), Power-up Timer (PWRT) and Oscillator Start-up Timer (OST)
•  Programmable Brown-out Reset (BOR)
•  Extended Watchdog Timer (WDT) with on-chip oscillator and software enable
•  Programmable code protection
•  In-Circuit Serial Programming™ (ICSP™) via two pins
•  In-Circuit Debug via two pins Analog Features:
•  Analog-to-Digital Converter (ADC) module: - 10-bit resolution - 17 analog input channels (PIC18F/LF2XK22) - 28 analog input channels (PIC18F/LF4XK22) - Auto acquisition capability - Conversion available during Sleep
•  Programmable High/Low Voltage Detection (PLVD) module
•  Charge Time Measurement Unit (CTMU) for mTouch™ support: - Up to 28 channels for button, sensor or slider input
•  Analog comparator module with: - Two rail-to-rail analog comparators - Comparator inputs and outputs externally accessible and configurable
•  Voltage reference module with: - Programmable On-chip Voltage Reference (CVREF) module (% of VDD) - Selectable on-chip fixed voltage reference Peripheral Features:
•  24/35 I/O pins and 1 input-only pin: - High current sink/source 25 mA/25 mA - Individually programmable weak pull-ups - Individually programmable interrupt-on-pin change
•  Three external interrupt pins
•  Up to seven Timer modules: - Up to four 16-bit timers/counters with prescaler - Up to three 8-bit timers/counters - Dedicated, low-power Timer1 oscillator
•  Up to two Capture/Compare/PWM (CCP) modules
•  Up to three Enhanced Capture/Compare/PWM (ECCP) modules with: - One, two or four PWM outputs - Selectable polarity - Programmable dead time - Auto-shutdown and Auto-restart - PWM output steering control
•  Two Master Synchronous Serial Port (MSSP) modules with two modes of operation: - 3-wire SPI (supports all 4 SPI modes) - I2C™ Master and Slave modes (Slave mode with address masking)
•  Two Enhanced Universal Synchronous Asynchronous Receiver Transmitter modules (EUSART): - Supports RS-232, RS-485 and LIN 2.0 - Auto-Baud Detect - Auto Wake-up on Start bit


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