- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄377910 > MB89663RPF (FUJITSU LTD) 8-bit Proprietary Microcontroller PDF資料下載
參數(shù)資料
| 型號(hào)： | MB89663RPF |
| 廠商： | FUJITSU LTD |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-bit Proprietary Microcontroller |
| 中文描述： | 8-BIT, MROM, 10 MHz, MICROCONTROLLER, PQFP64 |
| 封裝： | PLASTIC, QFP-64 |
| 文件頁(yè)數(shù)： | 34/47頁(yè) |
| 文件大?。?/td> | 649K |
| 代理商： | MB89663RPF |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)當(dāng)前第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)
34
MB89660R Series
7. A/D Converter
Input impedance of analog input pins
The A/D converter used for the MB89660R series contains a sample hold circuit as illustrated below to fetch
analog input voltage into the sample hold capacitor for eight instruction cycles after starting A/D conversion.
For this reason, if the output impedance of the external circuit for the analog input is high, analog input voltage
might not stabilize within the analog input sampling period. Therefore, it is recommended to keep the output
impedance of the external circuit low (below 2 k
).
Note that if the impedance cannot be kept low, it is recommended to connect an external capacitor of approx.
0.1
μ
F for the analog input pin.
Error
The smaller the | AVR – AV
SS
|, the greater the error would become relatively.
V
OT
V
NT
V
( N+I )T
V
FST
Digital output
(1 LSB
×
N + V
OT
)
0000
0000
0000
0001
1111
1111
1110
1111
1 LSB =
AVR
256
Linearity error =
V
NT
– (1 LSB
×
N + V
OT
)
1 LSB
Differential linearity error =
V
( N + 1 ) T
– V
NT
1 LSB
Analog input
Actual conversion value
Theoretical conversion value
– 1
Total error =
1 LSB
V
NT
– (1 LSB
×
N + 1 LSB)
Linearity error
Closes for 8 instruction cycles
after starting A/D conversion.
Sample hold circuit
C
33 pF
Analog channel selector
Analog input pin
R
6 k
Comparator
If the output impedance of
the external circuit is high, it
is recommended to connect
an external capacitor of
approx. 0.1
μ
F.
.
Analog Input Equivalent Circuit
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MB89665R | Quadruple Bus Buffer Gates With 3-State Outputs 14-CDIP -55 to 125 |
| MB89665RP-SH | Quadruple Bus Buffer Gates With 3-State Outputs 14-CFP -55 to 125 |
| MB89665RPF | 3-Line To 8-Line Decoders/Demultiplexers 20-LCCC -55 to 125 |
| MB89663 | Quadruple Bus Buffer Gates With 3- State Outputs 20-LCCC -55 to 125 |
| MB89663P-SH | Quadruple Bus Buffer Gates With 3- State Outputs 14-CDIP -55 to 125 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MB89663RP-SH | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller |
| MB89665 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller |
| MB89665PF | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller |
| MB89665P-SH | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller |
| MB89665R | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。