Fujitsu FR81S User Manual
CHAPTER 44: 12-BIT A/D CONVERTER
4. Registers
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER
: 12-BIT A/D CONVERTER
FUJITSU SEMICONDUCTOR CONFIDENTIAL
63
Recommended setting (Use conditions: AV
CC
=4.5V to 5.5V)
Peripheral clock
(MHz)
ST1
ST0
Sampling time (ns)
40
0
0
1200
32
0
0
750
24
0
0
750
16
0
0
750
Note:
Please set the sampling time to 700ns(AV
CC
=4.5V to 5.5V)/1000ns(AV
CC
=2.7V to 5.5V) or more. When the
sampling time is set to 700ns/1000ns or less, a normal value of the analog conversion value might not be
obtained.
Please rewrite these bits when the A/D operation has stopped before conversion operation.
MB91520 Series
MN705-00010-1v0-E
1866