LC87F7NC8A Datasheet, PDF (17/28 Pages) ON Semiconductor – 8-bit Microcontroller

LC87F7NC8A
Continued from preceding page.
Parameter
Symbol
Pin/Remarks
Conditions
Oscillation
frequency range
(Note 2-3)
FmCF(1)
FmCF(2)
CF1, CF2
CF1, CF2
• 18MHz ceramic oscillation
• See Fig. 1.
• 8MHz 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]
2.7 to 3.6
2.5 to 3.6
2.5 to 3.6
2.5 to 3.6
2.5 to 3.6
2.5 to 3.6
2.5 to 3.6
2.5 to 3.6
2.5 to 3.6
2.5 to 3.6
Specification
min
typ
max
unit
18
8
0.3
1.0
2.0
10
MHz
4
32.768
8
10
3.5
4
8
24
1
4
kHz
12
MHz
4.5
64

8
Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond the Recommended
Operating Ranges limits may affect device reliability.
Electrical Characteristics at Ta = 40°C to +85°C, VSS1 = VSS2 = VSS3 = 0V
Parameter
High level input
current
Low level input
current
Symbol
Pin/Remarks
Conditions
IIH(1)
IIH(2)
IIH(3)
IIH(4)
IIH(5)
IIL(1)
IIL(2)
IIL(3)
IIL(4)
IIL(5)
Ports 0, 1, 3, 7, 8
Ports A, B, C, D, E,
F
Port L
RES
XT1, XT2
CF1
P87 small signal
input side
Ports 0, 1, 3, 7, 8
Ports A, B, C, D, E,
F
Port L
RES
XT1, XT2
CF1
P87 small signal
input side
• Output disabled
• Pull-up resistor off
• VIN=VDD (Including output Tr's
off leakage current)
VIN=VDD
• For input port specification
• VIN=VDD
VIN=VDD
VIN=VBIS+0.5V
(VBIS: Bias voltage)
• Output disabled
• Pull-up resistor off
• VIN=VSS (Including output Tr's
off leakage current)
VIN=VSS
• For input port specification
• VIN=VSS
VIN=VSS
VIN=VBIS0.5V
(VBIS: Bias voltage)
VDD [V]
2.5 to 3.6
2.5 to 3.6
2.5 to 3.6
2.5 to 3.6
2.5 to 3.6
2.5 to 3.6
2.5 to 3.6
2.5 to 3.6
2.5 to 3.6
2.5 to 3.6
min
1.5
1
1
1
15
10
Specification
typ
max unit
1
1
1
15
5.5
10
A
5.5
1.5
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