LC875932A Datasheet, PDF (13/23 Pages) Sanyo Semicon Device – CMOS IC Internal 32K/24K/16K-byte ROM and 1024-byte RAM 8-bit 1-chip Microcontroller

LC875932A/24A/16A
Allowable Operating Conditions at Ta = -30°C to +70°C, VSS1 = VSS2 = VSS3 = 0V
Parameter
Operating
supply voltage
Symbol
VDD(1)
Pin/Remarks
Conditions
VDD1=VDD2=VDD3
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
supply voltage
VHD
VDD1=VDD2=VDD3
RAM and register contents
sustained in HOLD mode.
2.0
5.5
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
P70 port input
/interrupt side
4.0 to 5.5
2.2 to 4.0
VSS
VSS
0.1VDD
+0.4
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
2.5 to 5.5
0.1
8
division ratio=1/1
• External system clock duty
2.2 to 5.5
0.1
2
=50±5%
• CF2 pin open
• System clock frequency
division ratio=1/2
3.0 to 5.5
0.2
2.5 to 5.5
0.2
2.2 to 5.5
0.2
24.4
16
4 MHz
Oscillation
FmCF(1) CF1, CF2
12MHz ceramic oscillation
3.0 to 5.5
12
frequency range
See Fig. 1.
(Note2-2)
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
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.A0125-13/23