- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄384046 > UPD784031GK-BE9 (NEC Corp.) 16/8-BIT SINGLE-CHIP MICROCONTROLLER PDF資料下載
參數(shù)資料
| 型號： | UPD784031GK-BE9 |
| 廠商： | NEC Corp. |
| 英文描述： | 16/8-BIT SINGLE-CHIP MICROCONTROLLER |
| 中文描述： | 16/8-BIT單片機 |
| 文件頁數(shù)： | 34/90頁 |
| 文件大?。?/td> | 377K |
| 代理商： | UPD784031GK-BE9 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁當前第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁
μ
PD784031
34
8.6 A/D Converter
An analog/digital (A/D) converter having 8 multiplexed analog inputs (ANI0-ANI7) is incorporated.
The successive approximation system is used for conversion. The result of conversion is held in the 8-bit A/D
conversion result register (ADCR). Thus, speedy high-precision conversion can be achieved. (The conversion time
is about 7.5
μ
s at f
CLK
= 16 MHz.)
A/D conversion can be started in any of the following modes:
Hardware start: Conversion is started by means of trigger input (INTP5).
Software start : Conversion is started by means of bit setting the A/D converter mode register (ADM).
After conversion has started, one of the following modes can be selected:
Scan mode : Multiple analog inputs are selected sequentially to obtain conversion data from all pins.
Select mode: A single analog input is selected at all times to enable conversion data to be obtained
continuously.
ADM is used to specify the above modes, as well as the termination of conversion.
When the result of conversion is transferred to ADCR, an interrupt request (INTAD) is generated. Using this feature,
the results of conversion can be continuously transferred to memory by the macro service.
Figure 8-7. Block Diagram of A/D Converter
ANI0
ANI1
ANI2
ANI3
ANI4
ANI5
ANI6
ANI7
INTP5
AV
REF1
AV
SS
R/2
R
R/2
8
8
8
I
T
Sample-and-hold circuit
Voltage comparator
Successive conver-
sion register (SAR)
Series resistor string
Control
circuit
A/D converter mode
register (ADM)
A/D conversion
result register (ADCR)
Internal bus
Edge
detector
Conversion
trigger
Trigger enable
INTAD
相關PDF資料 |
PDF描述 |
|---|---|
| UPD784031GCA-3B9 | 16/8-BIT SINGLE-CHIP MICROCONTROLLER |
| UPD784031 | 16/8-BIT SINGLE-CHIP MICROCONTROLLER |
| UPD784031A | 16/8-BIT SINGLE-CHIP MICROCONTROLLER |
| UPD784907 | 16-BIT SINGLE-CHIP MICROCONTROLLER |
| UPD784907GF | 16-BIT SINGLE-CHIP MICROCONTROLLER |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| UPD784031YGC-8BT | 制造商:Renesas Electronics Corporation 功能描述: |
| UPD784031YGC-8BT-A | 制造商:Renesas Electronics Corporation 功能描述: |
| UPD784031YGK-9EU | 制造商:Renesas Electronics Corporation 功能描述: |
| UPD784038GC-392-8BT-A | 制造商:Renesas Electronics Corporation 功能描述: |
| UPD784038GC-410-8BT-A | 制造商:Renesas Electronics Corporation 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復。