参数资料
型号: PIC12C672
厂商: Microchip Technology Inc.
英文描述: EPROM Memory Programming Specification
中文描述: EPROM存储器编程规范
文件页数: 14/44页
文件大小: 935K
代理商: PIC12C672
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
PIC12C672-10 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
PIC18F6680 64/68/80-Pin High-Performance, 64-Kbyte Enhanced Flash Microcontrollers with ECAN Module
相关代理商/技术参数
参数描述
PIC12C672/JW 功能描述:8位微控制器 -MCU 3.5KB 128 RAM 6 I/O 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
PIC12C672-04 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
PIC12C672-04/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
PIC12C672-04/JW 制造商:未知厂家 制造商全称:未知厂家 功能描述:MICROCONTROLLER|8-BIT|PIC CPU|CMOS|DIP|8PIN|CERAMIC
PIC12C672-04/P 功能描述:8位微控制器 -MCU 3.5KB 128 RAM 6 I/O 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