LC87F2J32A Datasheet, PDF (15/30 Pages) Sanyo Semicon Device – 8-bit 1-chip Microcontroller

LC87F2J32A
Continued from preceding page.
Parameter
Oscillation
Symbol
FmMRC(1)
Pin/Remarks
Conditions
Specification
VDD[V]
min
typ
max
unit
Frequency variable RC oscillation.
frequency
range
(Note 2-3)
FmMRC(2)
1/2 frequency division ratio.
(RCCTD=0) (Note 2-4)
Frequency variable RC oscillation.
1/2 frequency division ratio.
(RCCTD=0)
Ta=-10 to +50°C (Note 2-4)
2.4 to 5.5
2.4 to 5.5
7.44
8.0
8.56
7.6
8.0
MHz
8.4
FmRC
Internal Medium-speed RC
oscillation
1.8 to 5.5
0.5
1.0
2.0
FmSRC
Internal Low-speed RC oscillation
1.8 to 5.5
50
100
200
FsX’tal
XT1, XT2
32.768kHz crystal oscillation
kHz
1.8 to 5.5
32.768
See Fig. 3.
Frequency
OpVMRC
Frequency variable RC oscillation.
variable RC
oscillation
usable range
1/2 frequency division ratio.
(RCCTD=0)
2.4 to 5.5
6
8
10 MHz
Frequency
variable RC
oscillation
adjustment
range
VmADJ(1)
VmADJ(2)
VmADJ(3)
Each step of VMRCHBn
Each step of VMFCHBn
Each step of VMDCHn
2.4 to 5.5
2.4 to 5.5
2.4 to 5.5
3.6
7.0
0.7
1.5
0.2
0.5
11
2.3 %
1.1
Note 2-3: See Tables 1 and 2 for the oscillation constants.
Note 2-4: When switching the system clock, allow an oscillation stabilization time of 100μs or longer after the
multifrequency RC oscillator circuit transmits from the "oscillation stopped" to "oscillation enabled" state.
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