參數(shù)資料
型號(hào)： PIC16C642
廠商： Microchip Technology Inc.
英文描述： 8-Bit EPROM Microcontrollers with Analog Comparators(每個(gè)I/O口有25mA驅(qū)動(dòng)/吸收電流，可編程Vref，微控制器)
中文描述： 8位EPROM微控制器與模擬比較器（每個(gè)的I / O口有25毫安驅(qū)動(dòng)/吸收電流，可編程Vref的，微控制器）
文件頁數(shù)： 48/136頁
文件大?。?/td> 837K
代理商： PIC16C642
PIC16C64X & PIC16C66X
DS30559A-page 48
Preliminary
1996 Microchip Technology Inc.
7.1
Comparator Configuration
There are eight modes of operation for the
comparators. The CMCON register is used to select
the mode. Figure 7-2 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 the specified mode change delay shown
in Table 12-2.
Note:
Comparator interrupts should be disabled
during a comparator mode change other-
wise a false interrupt may occur.
FIGURE 7-2:
COMPARATOR I/O OPERATING MODES
C1
RA0/AN0
V
IN
-
V
IN
+
RA3/AN3
Off
(Read as '0')
Comparators Reset (POR Default Value)
CM2:CM0 =
000
A
A
C2
RA1/AN1
V
IN
-
V
IN
+
RA2/AN2
Off
(Read as '0')
A
A
C1
RA0/AN0
V
IN
-
V
IN
+
RA3/AN3
C1OUT
Two Independent Comparators
CM2:CM0 =
100
A
A
C2
RA1/AN1
V
IN
-
V
IN
+
RA2/AN2
C2OUT
A
A
C1
RA0/AN0
V
IN
-
V
IN
+
RA3/AN3
C1OUT
Two Common Reference Comparators
CM2:CM0 =
011
A
D
C2
RA1/AN1
V
IN
-
V
IN
+
RA2/AN2
C2OUT
A
A
C1
RA0/AN0
V
IN
-
V
IN
+
RA3/AN3
Off
(Read as '0')
One Independent Comparator
CM2:CM0 =
101
D
D
C2
RA1/AN1
V
IN
-
V
IN
+
RA2/AN2
C2OUT
A
A
C1
RA0/AN0
V
IN
-
V
IN
+
RA3/AN3
Off
(Read as '0')
Comparators Off
CM2:CM0 =
111
D
D
C2
RA1/AN1
V
IN
-
V
IN
+
RA2/AN2
Off
(Read as '0')
D
D
C1
RA0/AN0
V
IN
-
V
IN
+
RA3/AN3
C1OUT
Four Inputs Multiplexed to Two Comparators
CM2:CM0 =
010
A
A
C2
RA1/AN1
V
IN
-
V
IN
+
RA2/AN2
C2OUT
A
A
From V
REF
Module
CIS = 0
CIS = 1
CIS = 0
CIS = 1
C1
RA0/AN0
V
IN
-
V
IN
+
RA3/AN3
C1OUT
Two Common Reference Comparators with Outputs
CM2:CM0 =
110
A
D
C2
RA1/AN1
V
IN
-
V
IN
+
RA2/AN2
C2OUT
A
A
RA4
Open Drain
C1
RA0/AN0
V
IN
-
V
IN
+
RA3/AN3
C1OUT
Three Inputs Multiplexed to Two Comparators
CM2:CM0 =
001
A
A
C2
RA1/AN1
V
IN
-
V
IN
+
RA2/AN2
C2OUT
A
A
CIS = 0
CIS = 1
A = Analog Input, port reads zeros always.
D = Digital Input.
CIS (CMCON<3>) is the Comparator Input Switch.
相關(guān)PDF資料
PDF描述
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PIC16C67 8-Bit CMOS Microcontrollers(每個(gè)I/O口有25mA驅(qū)動(dòng)/吸收電流,1路捕捉/比較/PWM的微控制器)
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PIC16C62A 8-Bit CMOS Microcontrollers(每個(gè)I/O口有25mA驅(qū)動(dòng)/吸收電流,22個(gè)I/O,2.5V的微控制器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PIC16C642/JW 功能描述:8位微控制器 -MCU 7KB 176 RAM 22 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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
PIC16C642-04/SO 功能描述:8位微控制器 -MCU 7KB 176 RAM 22 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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
PIC16C642-04/SP 功能描述:8位微控制器 -MCU 7KB 176 RAM 22 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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
PIC16C642-04E/SO 功能描述:8位微控制器 -MCU 7KB 176 RAM 22 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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
PIC16C642-04E/SP 功能描述:8位微控制器 -MCU 7KB 176 RAM 22 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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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