參數(shù)資料
型號: PIC12F683-E/P
廠商: Microchip Technology
文件頁數(shù): 129/176頁
文件大?。?/td> 0K
描述: IC MCU FLASH 2KX14 8DIP
產(chǎn)品培訓(xùn)模塊: Asynchronous Stimulus
Digi-Key 應(yīng)用說明: AN0005 PWM Example with Microchip's CCP Module
AN0005 Example Code
標(biāo)準(zhǔn)包裝: 60
系列: PIC® 12F
核心處理器: PIC
芯體尺寸: 8-位
速度: 20MHz
外圍設(shè)備: 欠壓檢測/復(fù)位,POR,PWM,WDT
輸入/輸出數(shù): 5
程序存儲器容量: 3.5KB(2K x 14)
程序存儲器類型: 閃存
EEPROM 大?。?/td> 256 x 8
RAM 容量: 128 x 8
電壓 - 電源 (Vcc/Vdd): 2 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 4x10b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 125°C
封裝/外殼: 8-DIP(0.300",7.62mm)
包裝: 管件
配用: DM163029-ND - BOARD PICDEM FOR MECHATRONICS
AC162058-ND - HEADER MPLAB ICD2 FOR PIC12F683
I3-DB12F683-ND - BOARD DAUGHTER ICEPIC3
ACICE0201-ND - MPLABICE 8P 300 MIL ADAPTER
PIC12F683
DS41211D-page 54
2007 Microchip Technology Inc.
8.4
Comparator Control
The CMCON0 register (Register 8-1) provides access
to the following comparator features:
Mode selection
Output state
Output polarity
Input switch
8.4.1
COMPARATOR OUTPUT STATE
The Comparator state can always be read internally via
the COUT bit of the CMCON0 register. The comparator
state may also be directed to the COUT pin in the
following modes:
CM<2:0> = 001
CM<2:0> = 011
CM<2:0> = 101
When one of the above modes is selected, the associ-
ated TRIS bit of the COUT pin must be cleared.
8.4.2
COMPARATOR OUTPUT POLARITY
Inverting the output of the comparator is functionally
equivalent to swapping the comparator inputs. The
polarity of the comparator output can be inverted by
setting the CINV bit of the CMCON0 register. Clearing
CINV results in a non-inverted output. A complete table
showing the output state versus input conditions and
the polarity bit is shown in Table 8-1.
TABLE 8-1:
OUTPUT STATE VS. INPUT
CONDITIONS
8.4.3
COMPARATOR INPUT SWITCH
The inverting input of the comparator may be switched
between two analog pins in the following modes:
CM<2:0> = 101
CM<2:0> = 110
In the above modes, both pins remain in analog mode
regardless of which pin is selected as the input. The
CIS bit of the CMCON0 register controls the comparator
input switch.
8.5
Comparator Response Time
The comparator output is indeterminate for a period of
time after the change of an input source or the selection
of a new reference voltage. This period is referred to as
the response time. The response time of the
comparator differs from the settling time of the voltage
reference. Therefore, both of these times must be
considered when determining the total response time
to a comparator input change. See the Comparator and
Voltage Reference Specifications in Section 15.0
Input Conditions
CINV
COUT
VIN- > VIN+
00
VIN- < VIN+
01
VIN- > VIN+
11
VIN- < VIN+
10
Note:
COUT refers to both the register bit and
output pin.
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