• 參數(shù)資料
    型號: PIC18F24K22-I/ML
    廠商: Microchip Technology
    文件頁數(shù): 66/71頁
    文件大?。?/td> 0K
    描述: IC PIC MCU 16KB FLASH 28QFN
    標準包裝: 61
    系列: PIC® XLP™ 18F
    核心處理器: PIC
    芯體尺寸: 8-位
    速度: 64MHz
    連通性: I²C,SPI,UART/USART
    外圍設備: 欠壓檢測/復位,HLVD,POR,PWM,WDT
    輸入/輸出數(shù): 24
    程序存儲器容量: 16KB(8K x 16)
    程序存儲器類型: 閃存
    EEPROM 大小: 256 x 8
    RAM 容量: 768 x 8
    電壓 - 電源 (Vcc/Vdd): 1.8 V ~ 5.5 V
    數(shù)據(jù)轉換器: A/D 19x10b
    振蕩器型: 內部
    工作溫度: -40°C ~ 85°C
    封裝/外殼: 28-VQFN 裸露焊盤
    包裝: 管件
    2010-2012 Microchip Technology Inc.
    DS41412F-page 69
    PIC18(L)F2X/4XK22
    5.0
    MEMORY ORGANIZATION
    There are three types of memory in PIC18 Enhanced
    microcontroller devices:
    Program Memory
    Data RAM
    Data EEPROM
    As Harvard architecture devices, the data and program
    memories
    use
    separate
    buses;
    this
    allows
    for
    concurrent access of the two memory spaces. The data
    EEPROM, for practical purposes, can be regarded as
    a peripheral device, since it is addressed and accessed
    through a set of control registers.
    Additional detailed information on the operation of the
    Flash program memory is provided in Section 6.0
    Data
    EEPROM
    is
    discussed separately in Section 7.0 “Data EEPROM
    5.1
    Program Memory Organization
    PIC18 microcontrollers implement a 21-bit program
    counter, which is capable of addressing a 2-Mbyte
    program memory space. Accessing a location between
    the upper boundary of the physically implemented
    memory and the 2-Mbyte address will return all ‘0’s (a
    NOP
    instruction).
    This family of devices contain the following:
    PIC18(L)F23K22, PIC18(L)F43K22: 8 Kbytes of
    Flash Memory, up to 4,096 single-word instructions
    PIC18(L)F24K22, PIC18(L)F44K22: 16 Kbytes of
    Flash Memory, up to 8,192 single-word instructions
    PIC18(L)F25K22, PIC18(L)F45K22: 32 Kbytes of
    Flash Memory, up to 16,384 single-word instruc-
    tions
    PIC18(L)F26K22, PIC18(L)F46K22: 64 Kbytes of
    Flash Memory, up to 37,768 single-word
    instructions
    PIC18 devices have two interrupt vectors. The Reset
    vector address is at 0000h and the interrupt vector
    addresses are at 0008h and 0018h.
    The program memory map for PIC18(L)F2X/4XK22
    devices is shown in Figure 5-1. Memory block details
    are shown in Figure 20-2.
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