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MB90867E Datasheet(PDF) 60 Page - Fujitsu Component Limited.

Part No. MB90867E
Description  16-bit Proprietary Microcontroller CMOS
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Maker  FUJITSU [Fujitsu Component Limited.]
Homepage  http://edevice.fujitsu.com/fmd/en/index.html
Logo FUJITSU - Fujitsu Component Limited.

MB90867E Datasheet(HTML) 60 Page - Fujitsu Component Limited.

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MB90860E Series
60
7.
Notes on A/D Converter Section
Use the device with external circuits of the following output impedance for analog inputs :
Recommended output impedance of external circuits are : Approx. 1.5 k
Ω or lower (4.0 V ≤ AVCC ≤ 5.5 V,
sampling period
≤ 0.5 µs)
If an external capacitor is used, in consideration of the effect by tap capacitance caused by external capacitors
and on-chip capacitors, capacitance of the external one is recommended to be several thousand times as high
as internal capacitor.
If output impedance of an external circuit is too high, a sampling period for an analog voltage may be insufficient.
8.
Flash Memory Program/Erase Characteristics
* : This value comes from the technology qualification (using Arrhenius equation to translate high temperature
measurements into normalized value at
+85 °C) .
Parameter
Conditions
Value
Unit
Remarks
Min
Typ
Max
Sector erase time
TA
= +25 °C
VCC
= 5.0 V
115
s
Excludes programming
prior to erasure
Chip erase time
9
s
Excludes programming
prior to erasure
Word (16-bit width)
programming time
16
3600
µs
Except for the over head
time of the system
Programs/Erase cycle
10000
⎯⎯
cycle
Flash Data Retention
Time
Average
TA
= +85 °C
20
⎯⎯
Year
*
C
Comparator
Analog input
R
4.5 V
≤ AVCC ≤ 5.5 V : R := 2.52 kΩ, C := 10.7 pF
4.0 V
≤ AVCC < 4.5 V : R := 13.6 kΩ, C := 10.7 pF
• Analog input circuit model
Note : Use the values in the figure only as a guideline.


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