參數(shù)資料
型號: PIC16F874
廠商: Microchip Technology Inc.
英文描述: Enhanced FLASH/EEPROM 8-Bit Microcontroller With A/D Module(驅(qū)動/吸收電流高,工作電壓2.5~5.5V,微控制器)
中文描述: 增強的閃存/ EEPROM 8位A / D模塊(驅(qū)動/吸收電流高,工作電壓2.5?5.5V的微控制器,微控制器)
文件頁數(shù): 58/170頁
文件大小: 4191K
代理商: PIC16F874
PIC16F62X
DS40300C-page 56
Preliminary
2003 Microchip Technology Inc.
9.5
Comparator Outputs
The comparator outputs are read through the CMCON
register. These bits are read only. The comparator
outputs may also be directly output to the RA3 and RA4
I/O pins. When the CM<2:0> = 110, multiplexors in the
output path of the RA3 and RA4/T0CK1 pins will switch
and the output of each pin will be the unsynchronized
output of the comparator. The uncertainty of each of the
comparators is related to the input offset voltage and
the response time given in the specifications. Figure 9-
3 shows the comparator output block diagram.
The TRISA bits will still function as an output enable/
disable for the RA3 and RA4/T0CK1 pins while in this
mode.
FIGURE 9-3:
COMPARATOR OUTPUT BLOCK DIAGRAM
Note 1:
When reading the PORT register, all pins
configured as analog inputs will read as a
‘0’. Pins configured as digital inputs will
convert an analog input according to the
Schmitt Trigger input specification.
2:
Analog levels on any pin that is defined as
a digital input may cause the input buffer
to consume more current than is
specified.
D
Q
EN
To RA3 or RA4/T0CK1 pin
Set CMIF bit
D
Q
EN
CL
RESET
From other Comparator
To Data Bus
CMCON<7:6>
CnV
OUT
CnI
NV
Q1
RD CMCON
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PIC16F874-04/L 功能描述:8位微控制器 -MCU 7KB 192 RAM 33 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
PIC16F874-04/L 制造商:Microchip Technology Inc 功能描述:8BIT FLASH MCU SMD 16F874 PLCC44
PIC16F87404/P 制造商:Microchip Technology Inc 功能描述:MICROCONTROLLER IC
PIC16F874-04/P 功能描述:8位微控制器 -MCU 7KB 192 RAM 33 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
PIC16F874-04/PQ 功能描述:8位微控制器 -MCU 7KB 192 RAM 33 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