mb90f345caspfv Fujitsu Microelectronics, Inc., mb90f345caspfv Datasheet - Page 70

• Manufacturer Part Number: mb90f345caspfv
• Description: 16-bit Proprietary Microcontroller Cmos 2 F2mc-16lx Mb90340 Series
• Manufacturer: Fujitsu Microelectronics, Inc.

70
MB90340 Series
7. Notes on A/D Converter Section
8. Flash Memory Program/Erase Characteristics
* : This value comes from the technology qualification (using Arrhenius equation to translate high temperature
Sector erase time
Chip erase time
Word (16 bit width)
programming time
Programs/Erase cycle
Flash Data Retension
Time
• Analog input circuit model
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
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.
measurements into normalized value at 85 C) .
Note : Use the values in the figure only as a guideline.
Parameter
Analog input
Conditions
T
T
V
A
A
CC
Average
25 C
85 C
5.0 V
R
10,000
Min
20
Value
Typ
16
1
9
C
4.5 V
4.0 V
sampling period
AV
AV
3,600
Max
15
CC
CC
< 4.5 V : R : = 13.6 k , C : = 10.7 pF
5.5 V : R : = 2.52 k , C : = 10.7 pF
cycle
Comparator
Year
Unit
s
s
s
0.5 s)
Excludes programming
prior to erasure
Excludes programming
prior to erasure
Except for the over head
time of the system
*
Remarks
AV
CC
5.5 V,