參數(shù)資料
型號： PIC16C621
廠商： Microchip Technology Inc.
英文描述： EPROM-Based 8-Bit CMOS Microcontroller(每個I/O口有25mA驅(qū)動/吸收電流,可編程參考電壓，微控制器)
中文描述： 存儲器為基礎(chǔ)的8位CMOS微控制器（每個的I / O口有25毫安驅(qū)動/吸收電流，可編程參考電壓，微控制器）
文件頁數(shù)： 38/112頁
文件大小： 1205K
代理商： PIC16C621
PIC16C62X(A)
DS30235F-page 38
Preliminary
1997 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 com-
parator 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
V
IN
-
V
IN
+
Off
(Read as '0')
RA0/AN0
RA3/AN3
A
A
CM<2:0> = 000
-
+
C2
V
IN
-
V
IN
+
Off
(Read as '0')
RA1/AN1
RA2/AN2
A
A
-
+
C1
V
IN
-
V
IN
+
Off
(Read as '0')
RA0/AN0
RA3/AN3
D
D
CM<2:0> = 111
-
+
C2
V
IN
-
V
IN
+
Off
(Read as '0')
RA1/AN1
RA2/AN2
D
D
-
+
C1
V
IN
-
V
IN
+
C1OUT
RA0/AN0
RA3/AN3
A
A
-
+
C2
V
IN
-
V
IN
+
C2OUT
RA1/AN1
RA2/AN2
A
A
CM<2:0> = 100
-
+
C1
V
IN
-
V
IN
+
C1OUT
RA0/AN0
RA3/AN3
A
A
-
+
C2
V
IN
-
V
IN
+
C2OUT
RA1/AN1
RA2/AN2
A
A
From V
REF
Module
-
+
C1
V
IN
-
V
IN
+
C1OUT
RA0/AN0
RA3/AN3
A
D
-
+
C2
V
IN
-
V
IN
+
C2OUT
RA1/AN1
RA2/AN2
A
A
CM<2:0> = 011
RA4 Open Drain
-
+
C1
V
IN
-
V
IN
+
C1OUT
RA0/AN0
RA3/AN3
A
D
-
+
C2
V
IN
-
V
IN
+
C2OUT
RA1/AN1
RA2/AN2
A
A
CM<2:0> = 110
-
+
C1
V
IN
-
V
IN
+
Off
(Read as '0')
RA0/AN0
RA3/AN3
D
D
CM<2:0> = 101
-
+
C2
V
IN
-
V
IN
+
C2OUT
RA1/AN1
RA2/AN2
A
A
-
+
C1
V
IN
-
CIS=1
V
IN
+
C1OUT
RA0/AN0
RA3/AN3
A
A
-
+
C2
V
IN
-
V
IN
+
C2OUT
RA1/AN1
RA2/AN2
A
A
CM<2:0> = 001
CIS=0
Comparators Reset
Two Independent Comparators
Two Common Reference Comparators
One Independent Comparator
Three Inputs Multiplexed to
Two Comparators
Two Common Rference Comparators with Outputs
Four Inputs Multiplexed to
Two Comparators
Comparators Off
CM<2:0> = 010
CIS=0
CIS=1
CIS=0
CIS=1
A = Analog Input, Port Reads Zeros Always
D = Digital Input
CIS = CMCON<3>, Comparator Input Switch
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PIC16C621/JW 功能描述:8位微控制器 -MCU 1.75KB 80 RAM 13 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
PIC16C621-04/P 功能描述:8位微控制器 -MCU 1.75KB 80 RAM 13 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
PIC16C621-04/P 制造商:Microchip Technology Inc 功能描述:IC 8BIT CMOS MCU 16C621 DIP18
PIC16C621-04/SO 功能描述:8位微控制器 -MCU 1.75KB 80 RAM 13 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
PIC16C621-04/SS 功能描述:8位微控制器 -MCU 1.75KB 80 RAM 13 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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