參數(shù)資料
型號： 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)： 50/136頁
文件大?。?/td> 837K
代理商： PIC16C642
PIC16C64X & PIC16C66X
DS30559A-page 50
Preliminary
1996 Microchip Technology Inc.
7.4
Comparator Response Time
Response time is the minimum time, after selecting a
new reference voltage or input source, before the
comparator output is guaranteed to have a valid level.
If the internal reference is changed, the maximum delay
of the internal voltage reference must be considered
when using the comparator outputs. Otherwise, the
maximum delay of the comparators should be used
(Table 12-2 and Table 12-3).
7.5
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 CM2:CM0 =
110
, multiplexors in the
output path of the RA3 and RA4 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 7-4 shows the comparator output block diagram.
The TRISA bits will still function as an output enable/
disable for the RA3 and RA4 pins while in this mode.
Note 1:
When reading the PORTA 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.
Note 2:
Analog levels on any pin that is defined as
a digital input may cause the input buffer
to consume more current than is speci-
fied.
FIGURE 7-4:
COMPARATOR OUTPUT BLOCK DIAGRAM
D
Q
EN
To RA3 or RA4 pin
RD CMCON
Set CMIF bit
MULTIPLEX
D
Q
EN
CL
Port Pins
RD CMCON
NRESET
From other Comparator
To Data Bus
相關(guān)PDF資料
PDF描述
PIC16C64A Using the 8-Bit Parallel Slave Port(每個(gè)I/O口有25mA驅(qū)動(dòng)/吸收電流,并行從動(dòng)口,1路捕捉/比較/PWM的微控制器)
PIC16C66 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)
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)
PIC16C62 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)
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
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報(bào)價(jià)

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*