LC877424A Datasheet, PDF (11/22 Pages) Sanyo Semicon Device – 8 Bit Single Chip Microcontroller Incorporating 48K/40K/32K/24K Byte ROM and 1536 byte RAM on Chip

LC877448A/40A/32A/24A
Recommended Operating Range / Ta=-30°C to +70°C, VSS1=VSS2=VSS3=0V
Parameter
Symbol
Pins
Conditions
V_DD [V]
min
typ
max
unit
Operating supply
voltage range
VDD1
VDD2
VDD1=VDD2=VDD3
0.294µs ≤ tCYC ≤ 200µs
0.735µs ≤ tCYC ≤ 200µs
4.5
6.0
2.5
6.0
Supply voltage
range in Hold mode
VHD
VDD1
Keep RAM and register
data in HOLD mode
2.0
6.0
Input high voltage
VIH1
•Port 0, 3, 8
•Port A, B, C, D, E, F, L
Output disable
2.5 to 6.0
0.3VDD
+0.7
VDD
VIH2
•Port 1
•Port 71, 72, 73
•P70 port input / interrupt
Output disable
2.5 to 6.0
0.3VDD
+0.7
VDD
Input low voltage
VIH3
VIH4
VIH5
VIL1
Port 87 small signal
input
Port 70
Watchdog timer
XT1, XT2, CF1, RES
Output disable
Output disable
•Port 0, 3, 8
•Port A, B, C, D, E, F, L
Output disable
2.5 to 6.0
2.5 to 6.0
2.5 to 6.0
0.75VD
D
0.9VDD
0.75VD
D
2.5 to 6.0
VSS
VDD
VDD
V
VDD
0.15VD
D
+0.4
VIL2
•Port 1
•Port 71, 72, 73
•P70 port input / interrupt
Output disable
2.5 to 6.0
VSS
0.1VDD
+0.4
VIL3
VIL4
Port 87 small signal
input
Port 70
Watchdog timer
Output disable
Output disable
2.5 to 6.0
2.5 to 6.0
VSS
VSS
0.25VD
D
0.8VDD
-1.0
Operation
cycle time
VIL5
tCYC
XT1, XT2, CF1, RES
2.5 to 6.0
4.5 to 6.0
2.5 to 6.0
VSS
0.294
0.735
0.25VD
D
200
µs
200
External system
FEXCF1
CF1
clock frequency
•CF2 open
•system clock divider :
4.5 to 6.0
0.1
10
1/1
•external clock DUTY =
2.5 to 6.0
0.1
4
50±5%
•CF2 opent
4.5 to 6.0
0.2
20
•system clock divider :
1/2
2.5 to 6.0
0.2
8
Oscillation
frequency range
FmCF1
CF1, CF2
10MHz ceramic
resonator oscillation
4.5 to 6.0
10
MHz
(Note 1)
Refer to figure 1
FmCF2
CF1, CF2
4MHz ceramic resonator
oscillation
2.5 to 6.0
4
Refer to figure 1
FmRC
RC oscillation
2.5 to 6.0
0.3
1.0
2.0
FmMRC
Frequency variable RC
oscillation source
2.5 to 6.0
50
oscillation
FsX’tal
XT1, XT2
32.768kHz crystal
resonator oscillation
2.5 to 6.0
32.768
kHz
Refer to figure 2
(Note 1) The port value of oscillation circuit is shown in table 1 and table 2.
No.7776-11/22