LC872G08A_10 Datasheet, PDF (12/27 Pages) Sanyo Semicon Device – 8K/6K/4K-byte ROM and 256-byte RAM integrated 8-bit 1-chip Microcontroller

LC872G08A/06A/04A
Allowable Operating Conditions at Ta = -40°C to +85°C, VSS1 = 0V
Parameter
Symbol
Operating
supply voltage
Memory
sustaining
supply voltage
High level
input voltage
VDD(1)
VDD(2)
VDD(3)
VHD
VIH(1)
Low level
input voltage
VIH(2)
VIH(3)
VIH(4)
VIL(1)
VIL(2)
Instruction
cycle time
VIL(3)
VIL(4)
tCYC
(Note 2-1)
Pin/Remarks
VDD1
VDD1
Ports 1, 2,
P70 port input/
interrupt side
Ports 0
Port 70 watchdog
timer side
CF1, RES
Ports 1, 2,
P70 port input/
interrupt side
Ports 0
Port 70 watchdog
timer side
CF1, RES
Conditions
0.245μs ≤ tCYC ≤ 200μs
0.294μs ≤ tCYC ≤ 200μs
0.735μs ≤ tCYC ≤ 200μs
RAM and register contents sustained
in HOLD mode.
VDD[V]
Specification
min
typ
max
unit
2.7
5.5
2.2
5.5
1.8
5.5
1.6
1.8 to 5.5 0.3VDD+0.7
1.8 to 5.5 0.3VDD+0.7
1.8 to 5.5 0.9VDD
1.8 to 5.5
4.0 to 5.5
1.8 to 4.0
4.0 to 5.5
1.8 to 4.0
0.75VDD
VSS
VSS
VSS
VSS
1.8 to 5.5
VSS
1.8 to 5.5
2.7 to 5.5
2.2 to 5.5
VSS
0.245
0.294
VDD
VDD
V
VDD
VDD
0.1VDD+0.4
0.2VDD
0.15VDD+0.4
0.2VDD
0.8VDD-1.0
0.25VDD
200
200 μs
1.8 to 5.5
0.735
200
External
FEXCF
CF1
system clock
frequency
Oscillation
frequency
range
(Note 2-2)
FmCF(1)
FmCF(2)
FmCF(3)
CF1, CF2
CF1, CF2
CF1, CF2
FmMRC
FmRC
• CF2 pin open
• System clock frequency division
ratio=1/1
• External system clock duty=50±5%
• CF2 pin open
• System clock frequency division
ratio=1/2
• External system clock duty=50±5%
12MHz ceramic oscillation.
See Fig. 1.
10MHz ceramic oscillation.
See Fig. 1.
4MHz ceramic oscillation.
CF oscillation normal amplifier size selected.
(CFLAMP=0) See Fig. 1.
4MHz ceramic oscillation.
CF oscillation low amplifier size
selected. (CFLAMP=1)
See Fig. 1.
Frequency variable RC oscillation.
1/2 frequency division ratio.
(RCCTD=0) (Note 2-3)
Internal medium-speed RC oscillation
2.7 to 5.5
1.8 to 5.5
3.0 to 5.5
2.0 to 5.5
2.7 to 5.5
2.2 to 5.5
1.8 to 5.5
2.2 to 5.5
2.7 to 5.5
1.8 to 5.5
0.1
0.1
0.2
0.2
12
10
4
4
7.44
8.0
0.5
1.0
12
4
MHz
24.4
8
MHz
8.56
2.0
FmSRC
Internal low-speed RC oscillation
1.8 to 5.5
50 100
200
FsX’tal
XT1, XT2
32.768kHz crystal oscillation
kHz
1.8 to 5.5
32.768
See Fig. 1.
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.
Note 2-3: When switching the system clock, allow an oscillation stabilization time of 100μs or longer after the
multifrequency RC oscillator circuit transmits from the "oscillation stopped" to "oscillation enabled" state.
No.A1400-12/27