• 參數(shù)資料
    型號(hào): PIC16LC712T-04/SS
    廠商: Microchip Technology
    文件頁(yè)數(shù): 51/106頁(yè)
    文件大?。?/td> 0K
    描述: IC MCU OTP 1KX14 A/D PWM 20SSOP
    標(biāo)準(zhǔn)包裝: 1,600
    系列: PIC® 16C
    核心處理器: PIC
    芯體尺寸: 8-位
    速度: 4MHz
    外圍設(shè)備: 欠壓檢測(cè)/復(fù)位,POR,PWM,WDT
    輸入/輸出數(shù): 13
    程序存儲(chǔ)器容量: 1.75KB(1K x 14)
    程序存儲(chǔ)器類型: OTP
    RAM 容量: 128 x 8
    電壓 - 電源 (Vcc/Vdd): 2.5 V ~ 5.5 V
    數(shù)據(jù)轉(zhuǎn)換器: A/D 4x8b
    振蕩器型: 外部
    工作溫度: 0°C ~ 70°C
    封裝/外殼: 20-SSOP(0.209",5.30mm 寬)
    包裝: 帶卷 (TR)
    2005 Microchip Technology Inc.
    DS41106B-page 47
    PIC16C712/716
    The ADRES register contains the result of the A/D
    conversion. When the A/D conversion is complete, the
    result is loaded into the ADRES register, the GO/DONE
    bit (ADCON0<2>) is cleared and the A/D Interrupt Flag
    bit ADIF is set. The block diagram of the A/D module is
    shown in Figure 8-3.
    The value that is in the ADRES register is not modified
    for a Power-on Reset. The ADRES register will contain
    unknown data after a Power-on Reset.
    After the A/D module has been configured as desired,
    the selected channel must be acquired before the
    conversion is started. The analog input channels must
    have their corresponding TRIS bits selected as an
    input. To determine acquisition time, see Section 8.1
    tion time has elapsed, the A/D conversion can be
    started. The following steps should be followed for
    doing an A/D conversion:
    1.
    Configure the A/D module:
    Configure analog pins/voltage reference/
    and digital I/O (ADCON1)
    Select A/D input channel (ADCON0)
    Select A/D conversion clock (ADCON0)
    Turn on A/D module (ADCON0)
    2.
    Configure A/D interrupt (if desired):
    Clear ADIF bit
    Set ADIE bit
    Set GIE bit
    3.
    Wait the required acquisition time.
    4.
    Start conversion:
    Set GO/DONE bit (ADCON0)
    5.
    Wait for A/D conversion to complete, by either:
    Polling for the GO/DONE bit to be cleared
    OR
    Waiting for the A/D interrupt
    6.
    Read A/D Result register (ADRES), clear bit
    ADIF if required.
    7.
    For the next conversion, go to step 1 or step 2
    as required. The A/D conversion time per bit is
    defined as TAD. A minimum wait of 2TAD is
    required before next acquisition starts.
    FIGURE 8-3:
    A/D BLOCK DIAGRAM
    (Input voltage)
    VIN
    VREF
    (Reference
    voltage)
    VDD
    PCFG2:PCFG0
    CHS2:CHS0
    000
    or
    010
    or
    110
    or 111
    001
    or
    011
    or
    101
    RA3/AN3/VREF
    RA2/AN2
    RA1/AN1
    RA0/AN0
    011
    010
    001
    000
    A/D
    Converter
    100
    or
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