LC87F2924B Datasheet, PDF (17/28 Pages) Sanyo Semicon Device – CMOS IC FROM 26K byte, RAM 768 byte on-chip 8-bit 1-chip Microcontroller

LC87F2924B
Continued from preceding page.
Parameter
Symbol
Pin/Remarks
Conditions
Oscillation
frequency
range
(Note 2-3)
FmCF(1)
FmCF(2)
CF1, CF2
CF1, CF2
• 12MHz ceramic oscillation
• See Fig. 1.
• 8MHz ceramic oscillation
• See Fig. 1.
FmCF(3)
CF1, CF2
• 4MHz ceramic oscillation
• See Fig. 1.
FmRC
Internal RC oscillation
FmVMRC(1)
• Frequency variable RC
source oscillation
• When
VMRAJ2 to 0=4,
VMFAJ2 to 0=0,
VMSL4M=0
FmVMRC(2)
Frequency
variable RC
oscillation
usable range
FsX’tal
XT1, XT2
OpVMRC(1)
OpVMRC(2)
• Frequency variable RC
source oscillation
• When
VMRAJ2 to 0=4,
VMFAJ2 to 0=0,
VMSL4M=1
• 32.768kHz crystal oscillation
• See Fig. 2.
When VMSL4M=0
When VMSL4M=1
Frequency
VmADJ(1)
Each step of VMRAJn
variable RC
(Wide range)
oscillation
VmADJ(2)
Each step of VMFAJn
adjustment
(Small range)
range
Note 2-3: See Tables 1 and 2 for the oscillation constants.
VDD[V]
3.0 to 5.5
2.5 to 5.5
2.2 to 5.5
2.2 to 5.5
Specification
min
typ
max
unit
12
8
4
0.3
1.0
2.0
2.2 to 5.5
MHz
10
2.2 to 5.5
4
2.2 to 5.5
2.2 to 5.5
2.2 to 5.5
2.2 to 5.5
2.2 to 5.5
32.768
8
10
3.5
4
8
24
1
4
kHz
12
MHz
4.5
64
%
8
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