參數(shù)資料
    

    


    


    
型號：
PIC17C756AT-33E/L

    

    
廠商：
Microchip Technology

    

    
文件頁數(shù)：
131/159頁

    

    
文件大?。?/td>
0K

    

    
描述：
IC MCU CMOS 33MHZ 16K EPRM68PLCC

    

    
標(biāo)準(zhǔn)包裝：
300

    

    
系列：
PIC® 17C

    

    
核心處理器：
PIC
    		

    

    
芯體尺寸：
8-位
    		

    

    
速度：
33MHz
    		

    

    
連通性：
I²C，SPI，UART/USART
    		

    

    
外圍設(shè)備：
欠壓檢測/復(fù)位，POR，PWM，WDT
    		

    

    
輸入/輸出數(shù)：
50
    		

    

    
程序存儲器容量：
32KB（16K x 16）
    		

    

    
程序存儲器類型：
OTP
    		

    

    
RAM 容量：
902 x 8
    		

    

    
電壓 - 電源 (Vcc/Vdd)：
4.5 V ~ 5.5 V
    		

    

    
數(shù)據(jù)轉(zhuǎn)換器：
A/D 12x10b
    		

    

    
振蕩器型：
外部
    		

    

    
工作溫度：
-40°C ~ 125°C
    		

    

    
封裝/外殼：
68-LCC（J 形引線）
    		

    

    
包裝：
帶卷 (TR)
    		

    

    
配用：
AC164308-ND - MODULE SKT FOR PM3 68PLCC
    DVA17XL681-ND - DEVICE ADAPTER FOR PIC17C752
    DM173001-ND - KIT DEVELOPMENT PICDEM17
    AC174007-ND - MODULE SKT PROMATEII 68PLCC
    AC164024-ND - ADAPTER PICSTART PLUS 68PLCC
    		

    

    

    

	
    
    
    

    
    
	
    PIC17C7XX
    DS30289B-page 72
     2000 Microchip Technology Inc.
    10.1
    PORTA Register
    PORTA is a 6-bit wide latch. PORTA does not have a
    corresponding Data Direction Register (DDR). Upon a
    device RESET, the PORTA pins are forced to be hi-
    impedance inputs. For the RA4 and RA5 pins, the
    peripheral module controls the output. When a device
    RESET occurs, the peripheral module is disabled, so
    these pins are forced to be hi-impedance inputs.
    Reading PORTA reads the status of the pins.
    The RA0 pin is multiplexed with the external interrupt,
    INT. The RA1 pin is multiplexed with TMR0 clock input,
    RA2 and RA3 are multiplexed with the SSP functions,
    and RA4 and RA5 are multiplexed with the USART1
    functions. The control of RA2, RA3, RA4 and RA5 as
    outputs, is automatically configured by their multi-
    plexed peripheral module when the module is enabled.
    10.1.1
    USING RA2, RA3 AS OUTPUTS
    The RA2 and RA3 pins are open drain outputs. To use
    the RA2 and/or the RA3 pin(s) as output(s), simply
    write to the PORTA register the desired value. A ’0’ will
    cause the pin to drive low, while a ’1’ will cause the pin
    to float (hi-impedance). An external pull-up resistor
    should be used to pull the pin high. Writes to the RA2
    and RA3 pins will not affect the other PORTA pins.
    Example 10-1 shows an instruction sequence to initial-
    ize PORTA. The Bank Select Register (BSR) must be
    selected to Bank 0 for the port to be initialized. The fol-
    lowing example uses the MOVLB instruction to load the
    BSR register for bank selection.
    EXAMPLE 10-1:
    INITIALIZING PORTA
    FIGURE 10-1:
    RA0 AND RA1 BLOCK
    DIAGRAM
    FIGURE 10-2:
    RA2 BLOCK DIAGRAM
    Note:
    When using the RA2 or RA3 pin(s) as out-
    put(s), read-modify-write instructions (such
    as BCF, BSF, BTG) on PORTA are not
    recommended.
    Such operations read the port pins, do the
    desired operation, and then write this value
    to the data latch. This may inadvertently
    cause the RA2 or RA3 pins to switch from
    input to output (or vice-versa).
    To avoid this possibility, use a shadow reg-
    ister for PORTA. Do the bit operations on
    this shadow register and then move it to
    PORTA.
    MOVLB
    0
    ; Select Bank 0
    MOVLW
    0xF3
    ;
    MOVWF
    PORTA
    ; Initialize PORTA
    ;
    RA<3:2> are output low
    ;
    RA<5:4> and RA<1:0>
    ;
    are inputs
    ;
    (outputs floating)
    Note: Input pins have protection diodes to VDD and VSS.
    Data Bus
    RD_PORTA
    (Q2)
    Note: I/O pin has protection diodes to VSS.
    Data Bus
    WR_PORTA
    (Q4)
    QD
    Q
    CK
    RD_PORTA
    (Q2)
    Q
    D
    EN
    Peripheral Data In
    1
    0
    I2C Mode Enable
    SCL Out
    
    
    
    
    
    


    


    

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PIC17C756AT-16E/L
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    相關(guān)代理商/技術(shù)參數(shù)
    		

    參數(shù)描述
    		

    
    

    
PIC17C756AT-33I/L
功能描述:8位微控制器 -MCU 32KB 902 RAM 50 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

    

    
PIC17C756AT-33I/PT
功能描述:8位微控制器 -MCU 32KB 902 RAM 50 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

    

    
PIC17C762-16/L
功能描述:8位微控制器 -MCU 16KB 678 RAM 66 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

    

    
PIC17C762-16/PT
功能描述:8位微控制器 -MCU 16KB 678 RAM 66 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

    

    
PIC17C762-16E/L
功能描述:8位微控制器 -MCU 16KB 678 RAM 66 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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