LC875J64C Datasheet, PDF (12/23 Pages) Sanyo Semicon Device – ROM 64K/56K/48K byte, RAM 2048 byte on-chip 8-bit 1-chip Microcontroller

LC875J64C/875J56C/875J48C
Allowable Operating Conditions at Ta = -30°C to +70°C, VSS1 = VSS2 = VSS3 = 0V
Parameter
Operating
supply voltage
Symbol
VDD(1)
Pin/Remarks
VDD1=VDD2=VDD3
Conditions
0.245µs≤tCYC≤200µs
0.367µs≤tCYC≤200µs
VDD [V]
min
3.0
2.5
Specification
typ
max
unit
5.5
5.5
1.47µs≤tCYC≤200µs
2.2
5.5
Memory
sustaining
VHD
VDD1=VDD2=VDD3
RAM and register contents
sustained in HOLD mode.
2.0
5.5
supply voltage
High level input
voltage
VIH(1)
Ports 1, 2
P71 to P73
P70 port input/
2.2 to 5.5
0.3VDD
+0.7
VDD
interrupt side
VIH(2)
Ports 0, 8, B, C
PWM2, PWM3
2.2 to 5.5
0.3VDD
+0.7
VDD
VIH(3)
Port 70 watchdog
timer side
2.2 to 5.5 0.9VDD
VDD
V
VIH(4)
XT1, XT2, CF1
RES
2.2 to 5.5
0.75VDD
VDD
Low level input
voltage
VIL(1)
Ports 1, 2
P71 to P73
4.0 to 5.5
VSS
0.1VDD
+0.4
P70 port input/
interrupt side
2.2 to 4.0
VSS
0.2VDD
VIL(2)
Ports 0, 8, B, C
PWM2, PWM3
4.0 to 5.5
VSS
0.15VDD
+0.4
VIL(3)
Port 70 watchdog
timer side
2.2 to 4.0
2.2 to 5.5
VSS
VSS
0.2VDD
0.8VDD
-1.0
VIL(4)
XT1, XT2, CF1
RES
2.2 to 5.5
VSS
0.25VDD
Instruction cycle
time
(Note 2-1)
tCYC
3.0 to 5.5
2.5 to 5.5
2.2 to 5.5
0.245
0.367
1.47
200
200 µs
200
External system FEXCF(1) CF1
clock frequency
• CF2 pin open
3.0 to 5.5
0.1
12
• System clock frequency
division ratio=1/1
2.5 to 5.5
0.1
8
• External system clock duty
=50 ± 5%
2.2 to 5.5
0.1
2
Oscillation
FmCF(1)
frequency range
CF1, CF2
• CF2 pin open
• System clock frequency
division ratio=1/2
12MHz ceramic oscillation
See Fig. 1.
3.0 to 5.5
2.5 to 5.5
2.2 to 5.5
3.0 to 5.5
0.2
0.2
0.2
12
24.4
16
4
MHz
(Note 2-2)
FmCF(2) CF1, CF2
8MHz ceramic oscillation
2.5 to 5.5
8
See Fig. 1.
FmCF(3) CF1, CF2
4MHz ceramic oscillation
2.2 to 5.5
4
See Fig. 1.
FmRC
Internal RC oscillation
2.2 to 5.5
0.3
1.0
2.0
FmMRC
Frequency variable RC
2.2 to 5.5
16
oscillation source oscillation
FsX’tal
XT1, XT2
32.768kHz crystal oscillation
2.2 to 5.5
32.768
kHz
See Fig. 2.
Note 2-1: Relationship between tCYC and oscillation frequency is 3/FmCF at a division ratio of 1/1 and 6/FmCF at
a division ratio of 1/2.
Note 2-2: See Tables 1 and 2 for the oscillation constants.
No.8302-12/23