參數(shù)資料
型號(hào)： MB90V340
廠商： Fujitsu Limited
英文描述： 16-bit Proprietary Microcontroller CMOS
中文描述： 16位微控制器專有的CMOS
文件頁數(shù)： 58/62頁
文件大小： 412K
代理商： MB90V340
MB90860A Series
58
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
or lower (4.0 V
≤
AV
CC
≤
5.5 V,
sampling period
≤
0.5
μ
s)
if the output inpedance exceeds 1.5 k
, set a longer sampling time or add an external capacitor compensate
the output inpedance. About setting of sampling time, please refer to hardware manual of MB90860A series.
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.
Analog input circuit model
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
T
A
=
+
25
°
C
V
CC
=
5.0 V
1
15
s
Excludes programming
prior to erasure
Chip erase time
9
s
Excludes programming
prior to erasure
Word (16 bit width)
programming time
16
3,600
μ
s
Except for the over head
time of the system
Programs/Erase cycle
10,000
cycle
Flash Data Retention
Time
Average
T
A
=
+
85
°
C
20
Year
*
C
Comparator
Analog input
R
4.5 V
≤
AV
CC
≤
5.5 V : R : 2.52 k
, C : 10.7 pF
4.0 V
≤
AV
CC
< 4.5 V : R : 13.6 k
, C : 10.7 pF
Note : Use the values in the figure only as a guideline.
相關(guān)PDF資料
PDF描述
MB90860E 16-bit Proprietary Microcontroller
MB90867E 16-bit Proprietary Microcontroller CMOS
MB90867EPF 16-bit Proprietary Microcontroller CMOS
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