LC87F72C8A Datasheet, PDF (12/24 Pages) Sanyo Semicon Device – 8-Bit Single Chip Microcontroller with 128 KB Flash Memory and 2048-Byte RAM On Chip

LC87F72C8A
2. Recommended Operating Range at Ta=-20°C to +70°C, VSS1=VSS2=VSS3=0V
Parameter
Symbol
Pins
Conditions
Ratings
unit
VDD[V] min. typ. max.
Operating
VDD(1)
supply voltage
VDD1=VDD2=VDD3
0.294µs≤ tCYC≤
200µs
4.5
5.5
V
range
VDD(2)
0.735µs≤ tCYC≤
200µs
3.0
5.5
Supply voltage VHD
VDD1
Keep RAM and
2.0
5.5
range in Hold
register data in
mode
HOLD mode.
Input high
voltage
VIH(1)
• Port 0, 3, 8
• Port A,B,C,D,E,F,L
Output disable
3.0–5.5 0.3VDD
+0.7
VDD
VIH(2) • Port 1
Output disable
3.0–5.5 0.3VDD
VDD
• Port 71,72,73
+0.7
• P70 port input/interrupt
VIH(3) P87 small signal input Output disable
3.0–5.5 0.75VDD
VDD
VIH(4) Port 70
Output disable
3.0–5.5 0.9VDD
VDD
Watchdog timer
VIH(5) XT1, XT2, CF1, RES
3.0–5.5 0.75VDD
VDD
Input low
VIL(1) • Port 0, 3, 8
Output disable
3.0–5.5 VSS
0.15VDD
voltage
• Port A,B,C,D,E,F,L
+0.4
VIL(2) • Port 1
Output disable
3.0–5.5 VSS
0.1VDD
• Port 71,72,73
+0.4
• P70 port input/interrupt
VIL(3) Port 87 small signal input Output disable
3.0–5.5 VSS
0.25VDD
VIL(4) Port 70
Output disable
3.0–5.5 VSS
0.8VDD
Watchdog timer
-1.0
VIL(5) XT1,XT2,CF1, RES
3.0–5.5 VSS
0.25VDD
Operation
cycle time
tCYC
4.5–5.5 0.294
3.0–5.5 0.735
200 µs
200
External system FEXCF(1) CF1
clock
• CF2 open
• system clock
4.5–5.5 0.1
10 MHz
frequency
divider :1/1
• external clock
3.0–5.5 0.1
4
DUTY = 50 ± 5%
• CF2 open
4.5–5.5 0.2
20
• system clock
divider :1/2
3.0–5.5 0.2
8
Continued/
No.6712-12/24