HYUNDAI MicroElectronics
GMS81C2012/GMS81C2020
7.6 AC Characteristics
(TA=-40~ 85°C, VDD=5V±10%, VSS=0V)
Specifications
Unit
Parameter
Symbol
Pins
Min.
Typ.
Max.
fCP
Operating Frequency
XIN
XIN
1
80
-
-
-
-
-
-
8
-
MHz
nS
tCPW
External Clock Pulse Width
External Clock Transition Time
Oscillation Stabilizing Time
External Input Pulse Width
tRCP, FCP
t
XIN
20
20
-
nS
tST
XIN, XOUT
INT0, INT1, EC0
-
mS
tSYS
tEPW
2
External Input Pulse Transi-
tion Time
tREP, FEP
t
INT0, INT1, EC0
RESET
-
-
-
20
-
nS
tRST
tSYS
RESET Input Width
8
tCPW
tCPW
1/fCP
VDD-0.5V
XI
0.5V
tRCP
tFCP
tSYS
tRST
RESETB
0.2VDD
tEPW
tEPW
INT0, INT1
EC0
0.8VDD
0.2VDD
tREP
tFEP
Figure 7-1 Timing Chart
MAR. 2000 Ver 1.00
21
HYNIX [ HYNIX SEMICONDUCTOR ]
