LC87F2W48A Datasheet, PDF (14/26 Pages) Sanyo Semicon Device – 50K-byte FROM and 1536-byte RAM integrated 8-bit 1-chip Microcontroller

LC87F2W48A
Continued from preceding page.
Parameter
Oscillation
Symbol
FmVMRC
Pin/Remarks
Conditions
Frequency variable RC oscillation.
VDD[V]
Specification
min
typ
max
unit
frequency
(VM3FRQ1/0=0/1)
2.7 to 5.5
8.0
range
(Note 2-3)
MHz
(Note 2-2)
FmRC
Internal Medium-speed RC
oscillation
2.7 to 5.5
0.5
1.0
2.0
FmSRC
Internal Low-speed RC oscillation
2.7 to 5.5
50
100
200
FsX’tal
XT1, XT2
32.768kHz crystal oscillation
kHz
2.7 to 5.5
32.768
See Fig. 3.
Frequency
OpVMRC
Frequency variable RC oscillation.
variable RC
oscillation
(VM3FRQ1/0=0/1)
2.7 to 5.5
6
8
10 MHz
usable range
Frequency
variable RC
oscillation
adjustment
range
VmADJ(1)
VmADJ(2)
VmADJ(3)
Each step of V3RCHBn
Each step of V3FCHBn
Each step of V3DCHn
2.7 to 5.5
2.7 to 5.5
2.7 to 5.5
3.6
7.0
0.7
1.5
0.2
0.5
11
2.3 %
1.1
Note 2-2: See Tables 1 and 2 for the oscillation constants.
Note 2-3: 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.
No.A1869-14/26