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參數(shù)資料
| 型號： | MB90523B |
| 廠商： | Fujitsu Limited |
| 英文描述： | 16-bit Proprietary Microcontroller |
| 中文描述： | 16位微控制器專有 |
| 文件頁數(shù)： | 61/99頁 |
| 文件大?。?/td> | 978K |
| 代理商： | MB90523B |
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MB90520A/520B Series
61
13. 8/10-bit A/D Converter
The 8/10-bit A/D converter uses RC successive approximation to convert analog input voltages to an 8-bit or
10-bit digital value.
The input signals can be selected from the eight analog input pin channels.
Either a software trigger, internal timer output, or external pin trigger can be selected to trigger the start of A/
D conversion.
8
/
10
-
bit A
/
D converter functions
8
/
10
-
bit A
/
D converter conversion modes
Function
A/D conversion
time
Sampling time : Can be selected from 64, 128, or 4096 machine cycles.
The minimum is 4
μ
s.
Compare time : Can be selected from 44, 99, or 176 machine cycles.
The minimum is 4.4
μ
s.
A/D conversion time
=
sampling time
+
conversion time.
The minimum A/D conversion time is 10.2
μ
s.
Conversion method
RC successive approximation with sample & hold circuit
Resolution
8-bit or 10-bit, selectable
Up to eight channels can be used. However, two or more channels cannot be used
simultaneously.
An interrupt request can be generated when A/D conversion completes.
A/D conversion
start trigger
Supported by the extended intelligent I/O service (EI
2
OS) .
Analog input pins
Interrupts
Selectable : software, internal timer output, or falling edge on input from external pin
EI
2
OS support
Description
Single-shot
conversion mode
Performs A/D conversion sequentially from the start channel to the end channel. A/D con-
version halts after conversion completes for the end channel.
Continuous
conversion mode
Performs A/D conversion sequentially from the start channel to the end channel. A/D con-
version starts again from the start channel after conversion completes for the end channel.
Incremental
conversion mode
A/D conversion is performed for one channel then halts until the next trigger. After conver-
sion is performed for the end channel, the next conversion is performed for the start chan-
nel, and repeated this operation.
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|---|---|
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| MB90540G | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller |
| MB90543G | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller |
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