參數(shù)資料
型號: MC68HC08QY2CDTE
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDSO16
封裝: 0.65 MM PITCH, LEAD FREE, TSSOP-16
文件頁數(shù): 102/176頁
文件大?。?/td> 1124K
代理商: MC68HC08QY2CDTE
MC68HC08QY/QT Family Data Sheet, Rev. 2
Freescale Semiconductor
31
Chapter 3
10-Bit Analog-to-Digital Converter (ADC10) Module
3.1 Introduction
This section describes the 10-bit successive approximation analog-to-digital converter (ADC10).
The ADC10 module shares its pins with general-purpose input/output (I/O) port pins. See Figure 3-1 for
port location of these shared pins. The ADC10 on this MCU uses VDD and VSS as its supply and reference
pins. This MCU uses BUSCLKX4 as its alternate clock source for the ADC. This MCU does not have a
hardware conversion trigger.
3.2 Features
Features of the ADC10 module include:
Linear successive approximation algorithm with 10-bit resolution
Output formatted in 10- or 8-bit right-justified format
Single or continuous conversion (automatic power-down in single conversion mode)
Configurable sample time and conversion speed (to save power)
Conversion complete flag and interrupt
Input clock selectable from up to three sources
Operation in wait and stop modes for lower noise operation
Selectable asynchronous hardware conversion trigger
3.3 Functional Description
The ADC10 uses successive approximation to convert the input sample taken from ADVIN to a digital
representation. The approximation is taken and then rounded to the nearest 10- or 8-bit value to provide
greater accuracy and to provide a more robust mechanism for achieving the ideal code-transition voltage.
Figure 3-2 shows a block diagram of the ADC10
For proper conversion, the voltage on ADVIN must fall between VREFH and VREFL. If ADVIN is equal to
or exceeds VREFH, the converter circuit converts the signal to $3FF for a 10-bit representation or $FF for
a 8-bit representation. If ADVIN is equal to or less than VREFL, the converter circuit converts it to $000.
Input voltages between VREFH and VREFL are straight-line linear conversions.
NOTE
Input voltage must not exceed the analog supply voltages.
相關(guān)PDF資料
PDF描述
M37545GCGP 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PQFP32
ML610Q409-XXXWA RISC MICROCONTROLLER, UUC88
ML610Q421-NNNWA RISC MICROCONTROLLER, UUC116
MPC8379ECVRALGA 32-BIT, 400 MHz, MICROPROCESSOR, PBGA689
MC9S12XET256MAL 32-BIT, FLASH, 50 MHz, RISC MICROCONTROLLER, PQFP112
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68HC08QY4 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:M68HC08 Microcontrollers
MC68HC08SR12 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:M68HC08 Microcontrollers
MC68HC08TV24CFB 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:M68HC08 Microcontrollers
MC68HC08XL36 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit
MC68HC08XL36CB 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit