参数资料
型号: PIC16F676-E/P
厂商: Microchip Technology
文件页数: 69/132页
文件大小: 0K
描述: IC MCU FLASH 1KX14 W/AD 14DIP
产品培训模块: Asynchronous Stimulus
标准包装: 30
系列: PIC® 16F
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,WDT
输入/输出数: 12
程序存储器容量: 1.75KB(1K x 14)
程序存储器类型: 闪存
EEPROM 大小: 128 x 8
RAM 容量: 64 x 8
电压 - 电源 (Vcc/Vdd): 2 V ~ 5.5 V
数据转换器: A/D 8x10b
振荡器型: 内部
工作温度: -40°C ~ 125°C
封装/外壳: 14-DIP(0.300",7.62mm)
包装: 管件
配用: DM163029-ND - BOARD PICDEM FOR MECHATRONICS
2010 Microchip Technology Inc.
DS40039F-page 41
PIC16F630/676
6.2
Comparator Configuration
There are eight modes of operation for the comparator.
The CMCON register, shown in Register 6-1, is used to
select the mode. Figure 6-2 shows the eight possible
modes. The TRISA register controls the data direction
of the comparator pins for each mode. If the
Comparator mode is changed, the comparator output
level may not be valid for a specified period of time.
Refer to the specifications in Section 12.0 “Electri-
FIGURE 6-2:
COMPARATOR I/O OPERATING MODES
Note:
Comparator interrupts should be disabled
during a Comparator mode change. Other-
wise, a false interrupt may occur.
Comparator Reset (POR Default Value – low power)
Comparator Off (Lowest power)
CM2:CM0 = 000
CM2:CM0 = 111
Comparator without Output
Comparator w/o Output and with Internal Reference
CM2:CM0 = 010
CM2:CM0 = 100
Comparator with Output and Internal Reference
Multiplexed Input with Internal Reference and Output
CM2:CM0 = 011
CM2:CM0 = 101
Comparator with Output
Multiplexed Input with Internal Reference
CM2:CM0 = 001
CM2:CM0 = 110
A = Analog Input, ports always reads ‘0’
D = Digital Input
CIS = Comparator Input Switch (CMCON<3>)
RA1/CIN-
RA0/CIN+
Off (Read as ‘0’)
A
RA2/COUT
D
RA1/CIN-
RA0/CIN+
Off (Read as ‘0’)
D
RA2/COUT
D
RA1/CIN-
RA0/CIN+
COUT
A
RA2/COUT
D
RA1/CIN-
RA0/CIN+
COUT
A
D
RA2/COUT
D
From CVREF Module
RA1/CIN-
RA0/CIN+
COUT
A
D
RA2/COUT
D
From CVREF Module
RA1/CIN-
RA0/CIN+
COUT
A
RA2/COUT
D
From CVREF Module
CIS = 0
CIS = 1
RA1/CIN-
RA0/CIN+
COUT
A
RA2/COUT
D
RA1/CIN-
RA0/CIN+
COUT
A
RA2/COUT
D
From CVREF Module
CIS = 0
CIS = 1
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