參數(shù)資料
      

      


      


      
型號：
PIC16F874

      

      
廠商：
Microchip Technology Inc.

      

      
英文描述：
Enhanced FLASH/EEPROM 8-Bit Microcontroller With A/D Module(驅(qū)動/吸收電流高，工作電壓2.5~5.5V，微控制器)

      

      
中文描述：
增強的閃存/ EEPROM 8位A / D模塊（驅(qū)動/吸收電流高，工作電壓2.5?5.5V的微控制器，微控制器）

      

      
文件頁數(shù)：
55/170頁

      

      
文件大?。?/td>
4191K

      

      
代理商：
PIC16F874


      

      

      

	
      
    
    

    
      
	
       2003 Microchip Technology Inc.
      Preliminary
      DS40300C-page 53
      PIC16F62X
      9.0
      COMPARATOR MODULE
      The Comparator module contains two analog
      comparators. The inputs to the comparators are
      multiplexed with the RA0 through RA3 pins. The On-
      chip Voltage Reference (Section 10.0) can also be an
      input to the comparators. 
      The CMCON register, shown in Register 9-1, controls
      the comparator input and output multiplexers. A block
      diagram of the comparator is shown in Figure 9-1.
      REGISTER 9-1:
      CMCON REGISTER (ADDRESS: 01Fh)   
      R-0
      R-0
      R/W-0
      R/W-0
      R/W-0
      R/W-0
      R/W-0
      R/W-0
      C2OUT
      C1OUT
      C2INV
      C1INV
      CIS
      CM2
      CM1
      CM0
      bit 7
      bit 0
      bit 7
      C2OUT
      : Comparator 2 Output
      When C2INV = 0:
      1
       = C2 V
      IN
      + > C2 V
      IN
      -
      0
       = C2 V
      IN
      + < C2 V
      IN
      -
      When C2INV = 1:
      1
       = C2 V
      IN
      + < C2 V
      IN
      -
      0
       = C2 V
      IN
      + > C2 V
      IN
      -
      bit 6
      C1OUT
      : Comparator 1 Output
      When C1INV = 0:
      1
       = C1 V
      IN
      + > C1 V
      IN
      -
      0
       = C1 V
      IN
      + < C1 V
      IN
      -
      When C1INV = 1:
      1
       = C1 V
      IN
      + < C1 V
      IN
      -
      0
       = C1 V
      IN
      + > C1 V
      IN
      -
      bit 5
      C2INV
      : Comparator 2 Output Inversion
      1
       = C2 Output inverted
      0
       = C2 Output not inverted
      bit 4
      C1INV
      : Comparator 1 Output Inversion
      1
       = C1 Output inverted
      0
       = C1 Output not inverted
      bit 3
      CIS
      : Comparator Input Switch
      When CM2:CM0: = 001
      Then:
      1
       = C1 V
      IN
      - connects to RA3
      0
       = C1 V
      IN
      - connects to RA0
      When CM2:CM0 = 010
      Then:
      1
       = C1 V
      IN
      - connects to RA3
            C2 V
      IN
      - connects to RA2
      0
       = C1 V
      IN
      - connects to RA0
            C2 V
      IN
      - connects to RA1
      bit 2-0
      CM2:CM0
      : Comparator Mode
      Figure 9-1 shows the Comparator modes and CM2:CM0 bit settings
      Legend:
      R = Readable bit
      W = Writable bit
      U = Unimplemented bit, read as ‘0’
      -n = Value at POR
      ’1’ = Bit is set
      ’0’ = Bit is cleared
      x = Bit is unknown
      
    
      
    
    
      


      


      

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      相關(guān)代理商/技術(shù)參數(shù)
      		

      參數(shù)描述
      		

      
      

      
PIC16F874-04/L
功能描述:8位微控制器 -MCU 7KB 192 RAM 33 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT

      

      
PIC16F874-04/L
 制造商:Microchip Technology Inc 功能描述:8BIT FLASH MCU SMD 16F874 PLCC44

      

      
PIC16F87404/P
 制造商:Microchip Technology Inc 功能描述:MICROCONTROLLER IC

      

      
PIC16F874-04/P
功能描述:8位微控制器 -MCU 7KB 192 RAM 33 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT

      

      
PIC16F874-04/PQ
功能描述:8位微控制器 -MCU 7KB 192 RAM 33 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT

      

      
    
    
    
	
      	
    
    
     
     
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