LC87F1HC8AUWA-2H Datasheet, PDF (13/27 Pages) ON Semiconductor – 8-bit 1-chip Microcontroller with USB-host controller

LC87F1HC8A
Allowable Operating Conditions at Ta = -40°C to +85°C, VSS1 = VSS2 = VSS3 = 0V
Parameter
Symbol
Operating
supply voltage
(Note 2-1)
Memory
sustaining
supply voltage
High level
input voltage
VDD(1)
VHD
VIH(1)
Low level
input voltage
VIH(2)
VIH(3)
VIL(1)
VIL(2)
VIL(3)
VIL(4)
Pin/Remarks
VDD1=VDD2=VDD3
VDD1=VDD2=VDD3
Port 0, 1, 2, 3
P71 to P73
P70 port input/
interrupt side
PWM0, PWM1
Port 70 watchdog
timer side
XT1, XT2, CF1, RES
Port 1, 2, 3
P71 to P73
P70 port input/
interrupt side
Port 0
PWM0, PWM1
Conditions
0.245µs ≤ tCYC ≤ 200µs
0.490µs ≤ tCYC ≤ 200µs Except
in onboard programming mode
RAM and register contents
sustained in HOLD mode.
VDD[V]
min
3.0
Specification
typ
max
unit
5.5
2.7
5.5
2.0
5.5
2.7 to 5.5
0.3VDD
+0.7
2.7 to 5.5 0.9VDD
2.7 to 5.5 0.75VDD
4.0 to 5.5
VSS
2.7 to 4.0
VSS
4.0 to 5.5
VSS
2.7 to 4.0
VSS
VDD
VDD
V
VDD
0.1VDD
+0.4
0.2VDD
0.15VDD
+0.4
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 2-2)
tCYC
Except for onboard programming
mode
3.0 to 5.5
2.7 to 5.5
0.245
0.490
200
μs
200
External
system clock
FEXCF(1) CF1
• CF2 pin open
• 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
• System clock frequency
MHz
division ratio=1/1
2.7 to 5.5
0.1
6
• External system clock duty
=50±5%
Oscillation
FmCF(1) CF1, CF2
When 12MHz ceramic oscillation
3.0 to 5.5
12
frequency
See Fig. 1.
range
(Note 2-3)
FmCF(2) CF1, CF2
When 6MHz ceramic oscillation
See Fig. 1.
2.7 to 5.5
6
MHz
FmRC
Internal RC oscillation
2.7 to 5.5
0.3
1.0
2.0
FsX’tal
XT1, XT2
32.768kHz crystal oscillation
See Fig. 2.
2.7 to 5.5
32.768
kHz
Note 2-1: VDD must be held greater than or equal to 3.0V in the flash ROM onboard programming mode.
Note 2-2: 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 2-3: See Tables 1 and 2 for the oscillation constants.
No.A0956-13/27