参数资料
型号: PIC12C671T-10I
厂商: Microchip Technology Inc.
元件分类: 8位微控制器
英文描述: 8-Pin, 8-Bit CMOS Microcontroller with A/D Converter
中文描述: 8引脚,8位CMOS微控制器与A / D转换器
文件页数: 14/44页
文件大小: 935K
代理商: PIC12C671T-10I
Tips ‘n Tricks
=OMMP=jáêáé=qó=fK
apQMMQM_Jé~=NT
TIP #13 Reading A Sensor With Higher
Accuracy – RC Timing Method
RC Timing Method:
Simple RC step response
Vc(t) = V
DD * (1 - e -t/(RC))
t = -RC ln(1 - Vth/V
DD)
Vth/V
DD is constant
R2 = (t2/t1) * R1
A reference resistor can be used to improve the
accuracy of an analog sensor reading. In this
diagram, the charge time of a resistor/capacitor
combination is measured using a timer and a port
input or comparator input switches from a '0' to '1'.
The R1 curve uses a reference resistor and the R2
curve uses the sensor. The charge time of the R1
curve is known and can be used to calibrate the
unknown sensor reading, R2. This reduces the
affects of temperature, component tolerance and
noise while reading the sensor.
Time
Vc(t)
Vth
t = 0
t = t1
t = t2
R1
R2
相关PDF资料
PDF描述
PIC12C672 EPROM Memory Programming Specification
PIC12C672-10 8-Pin, 8-Bit CMOS Microcontroller with A/D Converter
PIC12C672-10E 8-Pin, 8-Bit CMOS Microcontroller with A/D Converter
PIC12C672-10I 8-Pin, 8-Bit CMOS Microcontroller with A/D Converter
PIC12CE67 8-Pin, 8-Bit CMOS Microcontroller with A/D Converter and EEPROM Data Memory
相关代理商/技术参数
参数描述
PIC12C671T-10I/JM 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:8-Pin, 8-Bit CMOS Microcontroller with A/D Converter
PIC12C671T-10I/MF 功能描述:8位微控制器 -MCU 1K EPRM RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC12C671T-10I/P 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:8-Pin, 8-Bit CMOS Microcontroller with A/D Converter
PIC12C671T-10I/SM 功能描述:8位微控制器 -MCU 1.75KB 128 RAM 6 I/O 10MHz IndTemp SOIC8 RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC12C672 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:EPROM Memory Programming Specification