LC87F6D64A Datasheet, PDF (10/19 Pages) Sanyo Semicon Device – FROM 64K byte, RAM 2048 byte on-chip 8-bit 1-chip Microcontroller

LC87F6D64A
Allowable Operating Conditions at Ta = -40°C to +85°C, VSS1 = 0V
Parameter
Symbol
Operating
supply voltage
range
(Note 2-1)
VDD(1)
VDD(2)
Pin/Remarks
VDD1=VDD2=VDD3
Conditions
0.300μs≤tCYC≤200μs
0.735μs≤tCYC≤200μs
VDD[V]
Specification
min
typ
max
unit
3.0
5.5
2.5
5.5
Hold voltage VHD
VDD1
RAM and the register data are
kept in HOLD mode.
2.0
5.5
Pull-down
VP
VP
supply voltage
-35
VDD
Input high
voltage
VIH(1)
VIH(2)
Ports 0, 1
Port 70
Watchdog timer
Output disable
Output disable
2.5 to 5.5
2.5 to 5.5
0.3VDD
+0.7
0.9VDD
VDD
V
VDD
Input low
voltage
VIH(3)
VIL(1)
XT1/CF1, RES
Ports 0, 1
Port 71
Port 70
port input/interrupt
Output disable
2.5 to 5.5 0.75VDD
2.5 to 5.5
VSS
VDD
0.1VDD
+0.4
VIL(2)
Port 70
Watchdog timer
Output disable
2.5 to 5.5
VSS
0.8VDD
-1.0
Operation
cycle time
VIL(3)
tCYC
XT1/CF1, RES
2.5 to 5.5
3.0 to 5.5
2.5 to 5.5
VSS
0.300
0.735
0.25VDD
200
μs
200
External
system clock
frequency
FEXCF(1) CF1
Oscillation
stabilizing
time period
(Note 2-2)
FmCF(1) CF1, CF2
FmCF(2) CF1, CF2
• CF2 open circuit
• system clock divider set to 1/1
• external clock DUTY=50±5%
• CF2 open circuit
• system clock divider set to 1/2
• external clock DUTY=50±5%
• 10MHz ceramic resonator
oscillation
• Refer to figure 1
• 4MHz ceramic resonator
oscillation
• Refer to figure 1
3.0 to 5.5
2.5 to 5.5
3.0 to 5.5
2.5 to 5.5
3.0 to 5.5
2.5 to 5.5
0.1
0.1
0.2
0.2
10
10
4
MHz
20
8
4
MHz
FmRC
RC oscillation
2.5 to 5.5
0.3
1.0
2.0
FmVMRC
Frequency variable RC oscillation
2.5 to 5.5
4
circuit
FsX’tal
XT1, XT2
32.768kHz crystal resonator
oscillation
2.5 to 5.5
32.768
kHz
Refer to figure 2
Note 2-1: Re-writeable on board VDD≥4.5V.
Note 2-2: The oscillation constant is shown in table 1 and table 2.
The CF oscillation terminal and the crystal oscillation terminal cannot be used at the same time
because of commonness.
No.A1007-10/19