LC87F2W48A Datasheet, PDF (13/26 Pages) Sanyo Semicon Device – 50K-byte FROM and 1536-byte RAM integrated 8-bit 1-chip Microcontroller

LC87F2W48A
Allowable Operating Conditions at Ta=-40 to +85°C, VSS1 = VSS2 = VSS3 = 0V
Parameter
Symbol
Operating
supply voltage
Memory
sustaining
supply voltage
VDD
VHD
Pin/Remarks
Conditions
VDD1=VDD2=VDD3 0.245μs≤tCYC≤200μs
VDD1=VDD2=VDD3
RAM and register contents
sustained in HOLD mode.
VDD[V]
Specification
min
typ
max
unit
2.7
5.5
2.0
5.5
High level
input voltage
VIH(1)
VIH(2)
VIH(3)
VIH(4)
Ports 1, 2, 3
P71 to P73
P70 port input/
interrupt side
PWM0, PWM1
Port 0
Port 70 watchdog
timer side
XT1, XT2, CF1, CF2
RES
2.7 to 5.5
0.3VDD
+0.7
2.7 to 5.5
2.7 to 5.5
0.3VDD
+0.7
0.9VDD
2.7 to 5.5 0.75VDD
VDD
VDD
VDD
V
VDD
Low level
input voltage
VIL(1)
VIL(2)
Ports 1, 2, 3
P71 to P73
P70 port input/
interrupt side
PWM0, PWM1
Port 0
4.0 to 5.5
2.7 to 4.0
4.0 to 5.5
VSS
VSS
VSS
0.1VDD
+0.4
0.2VDD
0.15VDD
+0.4
VIL(3)
VIL(4)
Port 70 watchdog
timer side
XT1, XT2, CF1, CF2
RES
2.7 to 4.0
2.7 to 5.5
2.7 to 5.5
VSS
VSS
VSS
0.2VDD
0.8VDD
-1.0
0.25VDD
Instruction
cycle time
External
system clock
frequency
tCYC
(Note 2-1)
FEXCF
CF1
Oscillation
frequency
range
(Note 2-2)
FmCF(1)
CF1, CF2
FmCF(2)
CF1, CF2
FmCF(3)
CF1, CF2
2.7 to 5.5
0.245
200 μs
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.
2.7 to 5.5
3.0 to 5.5
2.7 to 5.5
2.7 to 5.5
2.7 to 5.5
0.1
12
0.2
24.4
12
MHz
10
4
4MHz ceramic oscillation.
CF oscillation low amplifier size
2.7 to 5.5
4
selected. (CFLAMP=1)
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.
Continued on next page.
No.A1869-13/26