参数资料
型号: PIC12F683-E/MD
厂商: Microchip Technology
文件页数: 128/176页
文件大小: 0K
描述: IC PIC MCU FLASH 2KX14 8DFN
产品培训模块: Asynchronous Stimulus
Digi-Key 应用说明: AN0005 PWM Example with Microchip's CCP Module
AN0005 Example Code
标准包装: 91
系列: PIC® 12F
核心处理器: PIC
芯体尺寸: 8-位
速度: 20MHz
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 5
程序存储器容量: 3.5KB(2K x 14)
程序存储器类型: 闪存
EEPROM 大小: 256 x 8
RAM 容量: 128 x 8
电压 - 电源 (Vcc/Vdd): 2 V ~ 5.5 V
数据转换器: A/D 4x10b
振荡器型: 内部
工作温度: -40°C ~ 125°C
封装/外壳: 8-VDFN 裸露焊盘
包装: 管件
配用: AC164326-ND - MODULA SKT PM3 20QFN
I3-DB12F683-ND - BOARD DAUGHTER ICEPIC3
2007 Microchip Technology Inc.
DS41211D-page 53
PIC12F683
8.3
Comparator Configuration
There are eight modes of operation for the comparator.
The CM<2:0> bits of the CMCON0 register are used to
select these modes as shown in Figure 8-4.
Analog function (A): digital input buffer is disabled
Digital function (D): comparator digital output,
overrides port function
Normal port function (I/O): independent of com-
parator
The port pins denoted as “A” will read as a ‘0’
regardless of the state of the I/O pin or the I/O control
TRIS bit. Pins used as analog inputs should also have
the corresponding TRIS bit set to ‘1’ to disable the
digital output driver. Pins denoted as “D” should have
the corresponding TRIS bit set to ‘0’ to enable the
digital output driver.
FIGURE 8-4:
COMPARATOR I/O OPERATING MODES
Note:
Comparator interrupts should be disabled
during a Comparator mode change to
prevent unintended interrupts.
Comparator Reset (POR Default Value – low power)
Comparator w/o Output and with Internal Reference
CM<2:0> = 000
CM<2:0> = 100
Comparator with Output
Multiplexed Input with Internal Reference and Output
CM<2:0> = 001
CM<2:0> = 101
Comparator without Output
Multiplexed Input with Internal Reference
CM<2:0> = 010
CM<2:0> = 110
Comparator with Output and Internal Reference
Comparator Off (Lowest power)
CM<2:0> = 011
CM<2:0> = 111
Legend: A = Analog Input, ports always reads ‘0’
CIS = Comparator Input Switch (CMCON0<3>)
I/O = Normal port I/O
D = Comparator Digital Output
Note 1:
Reads as ‘0’, unless CINV = 1.
CIN-
CIN+
Off
(1)
A
COUT (pin) I/O
CIN-
CIN+
COUT
A
I/O
COUT (pin) I/O
From CVREF Module
CIN-
CIN+
COUT
A
COUT (pin) D
CIN-
CIN+
COUT
A
COUT (pin)
D
From CVREF Module
CIS = 0
CIS = 1
CIN-
CIN+
COUT
A
COUT (pin)
I/O
CIN-
CIN+
COUT
A
COUT (pin)
I/O
From CVREF Module
CIS = 0
CIS = 1
CIN-
CIN+
COUT
A
I/O
COUT (pin) D
From CVREF Module
CIN-
CIN+
Off
(1)
I/O
COUT (pin) I/O
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