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參數(shù)資料
| 型號： | MB90F462PFM |
| 廠商： | FUJITSU LTD |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | Octal Transparent D-type Latches With 3-State Outputs 20-CFP -55 to 125 |
| 中文描述： | 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP64 |
| 封裝： | PLASTIC, LQFP-64 |
| 文件頁數(shù)： | 78/85頁 |
| 文件大?。?/td> | 827K |
| 代理商： | MB90F462PFM |
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MB90460 Series
78
7.
Notes on Using A/D Converter
Select the output impedance value for the external circuit of analog input according to the following conditions.
Output impedance values of the external circuit recommends about 5 k
or lower (sampling period
=
2.0
μ
s
@machine clock of 16 MHz) .
When capacitors are connected to external pins, the capacitance of several thousand times the internal capacitor
value is recommended to minimized the effect of voltage distribution between the external capacitor and internal
capacitor.
When the output impedance of the external circuit is too high, the sampling period for analog voltages may not
be sufficient.
Error
The smaller the absolute value of | AVR
AV
SS
|, the greater the error would become relatively.
8.
Flash Memory Program and Erase Performances
Parameter
Condition
Value
Unit
Remarks
Min
Typ
Max
Sector erase time
T
A
=
+
25
°
C
V
CC
=
3.0 V
1
15
s
Excludes 00H programming
prior erasure
Chip erase time
5
s
Excludes 00 H program-
ming prior erasure
Word (16 bit width)
programming time
16
3,600
μ
s
Excludes
system-level overhead
Erase/Program cycle
10,000
cycle
C
Comparator
Analog input
R
Analog input circuit model
Note : Listed values must be considered as standards.
MB90462, MB90F462, MB90467 R
2.6 K
, C
28 pF
MB90V460
R
3.2 K
, C
30 pF
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