參數(shù)資料
型號: ADUC847BSZ8-5
廠商: Analog Devices Inc
文件頁數(shù): 48/108頁
文件大?。?/td> 0K
描述: IC MCU FLASH W/24BIT ADC 52MQFP
標準包裝: 1
系列: MicroConverter® ADuC8xx
核心處理器: 8052
芯體尺寸: 8-位
速度: 12.58MHz
連通性: I²C,SPI,UART/USART
外圍設備: POR,PSM,PWM,溫度傳感器,WDT
輸入/輸出數(shù): 34
程序存儲器容量: 8KB(8K x 8)
程序存儲器類型: 閃存
EEPROM 大?。?/td> 4K x 8
RAM 容量: 2.25K x 8
電壓 - 電源 (Vcc/Vdd): 4.75 V ~ 5.25 V
數(shù)據(jù)轉換器: A/D 10x24b; D/A 1x12b,2x16b
振蕩器型: 內部
工作溫度: -40°C ~ 125°C
封裝/外殼: 52-QFP
包裝: 托盤
配用: EVAL-ADUC847QSZ-ND - KIT DEV QUICK START FOR ADUC847
ADuC845/ADuC847/ADuC848
Data Sheet
Rev. C | Page 44 of 108
ADC0CON2 (PRIMARY ADC CHANNEL SELECT REGISTER)
ADC0CON2 is used to select a reference source and channel for the primary ADC.
SFR Address:
E6H
Power-On Default:
00H
Bit Addressable:
No
Table 26. ADC0CON2 SFR Bit Designations
Bit No.
Name
Description
7, 6
XREF1, XREF0
Primary ADC External Reference Select Bit.
Set by the user to enable the primary ADC to use the external reference via REFIN± or REFIN2±.
Cleared by the user to enable the primary ADC to use the internal band gap reference (VREF = 1.25 V).
XREF1
XREF0
0
Internal 1.25 V Reference.
0
1
REFIN± Selected.
1
0
REFIN2± (AIN3/AIN4) Selected.
1
Reserved.
5
–––
Not Implemented. Write Don’t Care.
4
–––
Not Implemented. Write Don’t Care.
3, 2, 1, 0
CH3, CH2, CH1, CH0
Primary ADC Channel Select Bits. Written by the user to select the primary ADC channel as follows:
CH3
CH2
CH1
CH0
Selected Primary ADC Input Channel.
0
AIN1–AINCOM
0
1
AIN2–AINCOM
0
1
0
AIN3–AINCOM
0
1
AIN4–AINCOM
0
1
0
AIN5–AINCOM
0
1
0
1
AIN6–AINCOM
0
1
0
AIN7–AINCOM
0
1
AIN8–AINCOM
1
0
AIN9–AINCOM (LFCSP package only; not a valid selection on the MQFP
package)
1
0
1
AIN10–AINCOM (LFCSP package only; not a valid selection on the MQFP
package)
1
0
1
0
AIN1–AIN2
1
0
1
AIN3–AIN4
1
0
AIN5–AIN6
1
0
1
AIN7–AIN8
1
0
AIN9–AIN10 (LFCSP package only; not a valid selection on the MQFP
package)
1
AINCOM–AINCOM
Note that because the reference-detect does not operate on the REFIN2± pair, the REFIN2± pins can go below 1 V.
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