LC87F57C8A Datasheet, PDF (14/28 Pages) Sanyo Semicon Device – 8 BIT SINGLE CHIP MICROCONTROLLER

LC87F57C8A
2. Recommended operating range
/ Ta=-20°C to +70°C, VSS1=VSS2=VSS3=0V
Parameter
Operating
supply voltage
range
HOLD voltage
Input high
voltage
Input low
voltage
Operation
cycle time
External
system clock
frequency
Symbol
VDD(1)
VHD
VIH(1)
VIH(2)
VIH(3)
VIH(4)
VIL(1)
VIL(2)
VIL(5)
VIL(6)
tCYC
FEXCF(1)
Pins
VDD1=VDD2
=VDD3
VDD1=VDD2
=VDD3
• Ports 1, 2
• P71-P73
• P70 port input
/interrupt
• Ports 0, 8
• Ports A, B, C
Port 70 Watchdog
timer
XT1, XT2, CF1,
RES
• Ports 1, 2
• P71-P73
• P70 port input
/interrupt
• Ports 0, 8
• Ports A, B, C
Port 70 Watchdog
Timer
XT1, XT2, CF1,
RES
CF1
Conditions
Limits
VDD[V] min. typ. max. unit
0.294µs ≤ tCYC ≤ 200µs
4.5
5.5 V
0.588µs ≤ tCYC ≤ 200µs
Except for on-board
rewriting
RAM and register data are
kept in HOLD mode.
2.5 - 5.5
2.5
2.0
0.3VDD
+0.7
5.5
5.5
VDD
2.5 - 5.5 0.3VDD
+0.7
2.5 - 5.5 0.9VDD
2.5 - 5.5 0.75VDD
2.5 - 5.5 VSS
VDD
VDD
VDD
0.1VDD
+0.4
2.5 - 5.5 VSS
2.5 - 5.5 VSS
2.5 - 5.5 VSS
Except for on-board
rewriting
• Leave CF2 pin open
• System clock divider
set to 1/1
• External clock
DUTY=50±5%
• Leave CF2 pin open
• System clock divider
set to 1/1
• External clock
DUTY=50±5%
• Leave CF2 pin open
• System clock divider
set to 1/2
• Leave CF2 pin open
• System clock divider
set to 1/2
4.5 - 5.5 0.294
2.5 - 5.5 0.588
4.5 - 5.5 0.1
2.5 - 5.5 0.1
4.5 - 5.5 0.2
2.5 - 5.5 0.1
0.15VDD
+0.4
0.8VDD
-1.0
0.25VDD
200 µs
200
10 MHz
5
20.4
10
14/27
Ver.1.00