Samsung S3P80C5 User Manual page 250

S3P80C5/C80C5/C80C8
°
(T = – 40 C + 85
A
Oscillator
Crystal
Ceramic
External clock
External
Clock
t
INTL
NOTE: The unit t
Figure 13-1. Input Timing for External Interrupts (Port 0)
Table 13-7. Oscillation Characteristics
°
C)
Clock Circuit
C1
X
IN
X
OUT
C2
C1
XT
IN
XT
OUT
C2
X
IN
Open Pin
X
OUT
0.8 V
DD
0.2 V
DD
means one CPU clock period.
CPU
Conditions
CPU clock oscillation
frequency
CPU clock oscillation
frequency
X input frequency
IN
t
INTH
Min Typ
1 –
1 –
1 –
ELECTRICAL DATA
Max Unit
4 MHz
4 MHz
4 MHz
5
13-