LC877816A_08 Datasheet, PDF (11/21 Pages) Sanyo Semicon Device – 8-bit 1-chip Microcontroller

LC877816A/12A/08A
Allowable Operating Conditions at Ta = -30°C to +70°C, VSS1 = VSS2 = 0V
Parameter
Operating
supply voltage
range
Symbol
VDD(1)
VDD(2)
VDD(3)
VDD(4)
Pin/Remarks
VDD1=VDD2=V2
Normal mode
VDD1=VDD2=V2
Power save mode
Conditions
0.37μs≤tCYC≤200μs
0.75μs≤tCYC≤200μs
2.25μs≤tCYC≤200μs
4.28μs≤tCYC≤200μs
VDD
min
3.0
2.4
3.0
2.4
Specification
typ
max
unit
3.6
3.6
3.6
3.6
Supply
voltage range
VHD
VDD1=VDD2=V2
Keep RAM and register data in
HOLD mode.
2.2
3.6
in Hold mode
Input high
voltage
VIH(1)
• Ports 1
• P71 to P73
• Port 70
Output disable
2.4 to 3.6
0.3VDD
+0.7
VDD
input/interrupt
VIH(2)
• Ports 0, C
Output disable
2.4 to 3.6
0.3VDD
+0.7
VDD
V
VIH(3)
Port 70
Watchdog timer
Output disable
2.4 to 3.6 0.9VDD
VDD
Input low
Voltage
VIH(4)
VIL(1)
XT1, CF1, RES
• Ports 1
• P71 to P73
• Port 70
Output disable
2.4 to 3.6 0.75VDD
2.4 to 3.6
VSS
VDD
0.2VDD
input/interrupt
VIL(2)
VIL(3)
• Ports 0, C
Port 70
Watchdog timer
Output disable
Output disable
2.4 to 3.6
2.4 to 3.6
VSS
VSS
0.2VDD
0.8VDD
-1.0
Operation
cycle time
VIL(4)
tCYC
(Note 2-1)
XT1, CF1, RES
Power save mode
2.4 to 3.6
3.0 to 3.6
2.4 to 3.6
VSS
2.25
4.28
0.25VDD
200
μs
200
External
FEXCF(1)
CF1
• CF2 open
system clock
frequency
• System clock divider:1/1
2.4 to 3.6
0.1
• External clock DUTY=50 ± 5%
4 MHz
• Normal mode
Oscillation
FmCF
CF1, CF2
4MHz ceramic resonator
frequency
oscillation
2.4 to 3.6
4
MHz
range
See fig. 1
(Note 2-2)
FmRC
RC oscillation
VDD=3.0V, Ta=25°C
2.4 to 3.6
300
500
700 kHz
FsX’tal
XT1, XT2
32.768kHz crystal resonator
oscillation
2.4 to 3.6
32.768
kHz
See fig. 2
Note 2-1: Relationship between tCYC and oscillation frequency is 3/FmCF at a division ratio 1/1 and 6/FmCF at a
division ratio of 1/2.
Note 2-2: See Table 1 and 2 for the oscillation constants.
No.A0635-11/21