LC87F14C8A Datasheet, PDF (13/26 Pages) Sanyo Semicon Device – CMOS IC FROM 128K byte, RAM 10K byte on-chip 8-bit 1-chip Microcontroller with USB-host controller

LC87F14C8A
Allowable Operating Conditions at Ta = -20°C to +70°C, VSS1 = VSS2 = VSS3 = 0V
Parameter
Symbol
Pin/Remarks
Conditions
Specification
VDD[V]
min
typ
max
unit
Operating
supply voltage
(Note 3)
VDD(1)
VDD1=VDD2=VDD3
0.245µs ≤ tCYC ≤ 200µs
0.490µs ≤ tCYC ≤ 200µs Except
for onboard programming
3.0
5.5
2.7
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)
Port 0, 1, 2, 3
P71 to P73
P70 port input/
interrupt side
2.7 to 5.5
0.3VDD
+0.7
VDD
PWM0, PWM1
Low level
input voltage
VIH(2)
VIH(3)
VIL(1)
Port 70 watchdog
timer side
XT1, XT2, CF1, RES
Port 1, 2, 3
P71 to P73
2.7 to 5.5 0.9VDD
2.7 to 5.5 0.75VDD
4.0 to 5.5
VSS
VDD
V
VDD
0.1VDD
+0.4
VIL(2)
P70 port input/
interrupt side
2.7 to 4.0
VSS
0.2VDD
VIL(3)
Port 0
PWM0, PWM1
4.0 to 5.5
VSS
0.15VDD
+0.4
VIL(4)
2.7 to 4.0
VSS
0.2VDD
VIL(5)
VIL(6)
Port 70 watchdog
timer side
XT1, XT2, CF1, RES
2.7 to 5.5
2.7 to 5.5
VSS
VSS
0.8VDD
-1.0
0.25VDD
Instruction
cycle time
(Note 4)
tCYC
Except for onboard programming
3.0 to 5.5
2.7 to 5.5
0.245
0.490
200
µs
200
External
FEXCF(1) CF1
• CF2 pin open
system clock
• System clock frequency
frequency
division ratio = 1/1
3.0 to 5.5
0.1
12
• External system clock duty
= 50±5%
• CF2 pin open
MHz
• System clock frequency
division ratio = 1/1
2.7 to 5.5
0.1
6
• External system clock duty
= 50±5%
Oscillation
FmCF(1) CF1, CF2
12MHz ceramic oscillation
3.0 to 5.5
12
frequency
See Fig. 1.
range
(Note 5)
FmCF(2) CF1, CF2
6MHz ceramic oscillation
See Fig. 1.
2.7 to 5.5
MHz
6
FmRC
Internal RC oscillation
2.7 to 5.5
0.3
1.0
2.0
FsX’tal
XT1, XT2
32.768kHz crystal oscillation
2.7 to 5.5
32.768
kHz
See Fig. 2.
Note 3: VDD must be held greater than or equal to 3.0V in the flash ROM onboard programming mode.
Note 4: 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 5: See Tables 1 and 2 for the oscillation constants.
No.A0402-13/26