
HYUNDAI MicroElectronics
62
4.5. AC CHARACTERISTICS
4.5.1. Input Conditions
( Vdd = 5.0V
±
10%, Vss = 0
, Ta = -20
85
,f (Xin) = 8
)
Parameter Pin Symbol Unit SPECIFICATION ETC
MIN. TYP. MAX.
Operating Frequency Xin fcp MHz 1 - 8
System Clock tsys ns 500 - 250
Oscillation Stabilization Time Xin, Xout t
ST
ms 20
External Clock Pulse Width Xin tcpw ns 100
External Clock Transition Time Xin trcp,tfcp ns 20
Interrupt Pulse Width INT0~INT3 t
IW
tsys 2
RESET Input "L" Width RESET t
RST
tsys 8
Event Counter Input Pulse Width EC0,EC2 t
ECW
tsys 2
Event Counter Transition Time EC0,EC2 tr
EC,
tf
EC
ns 20
Timing Chart
RESET
Xin
t
fcp
t
rcp
0.5 V
Vdd-0.5V
t
cpw
1/f
cp
t
cpw
INT3
INT2
INT1
INT0
0.2 Vdd
0.8 Vdd
t
IW
t
IW
t
RST
0.2 Vdd
EC0
EC2
0.2 Vdd
0.8 Vdd
0.8 Vdd
t
ECW
t
ECW
t
rEC
t
fEC