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GMS81C1404 Datasheet, PDF (21/93 Pages) Hynix Semiconductor – 8-BIT SINGLE-CHIP MICROCONTROLLERS
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GMS81C1404/GMS81C1408
8.5 AC Characteristics
(TA=-20~+85°C, VDD=5V±10%, VSS=0V)
Parameter
Operating Frequency
External Clock Pulse Width
External Clock Transition Time
Oscillation Stabilizing Time
External Input Pulse Width
RESET Input Width
Symbol
fCP
tCPW
tRCP,tFCP
tST
tEPW
tRST
Pins
XIN
XIN
XIN
XIN, XOUT
INT0, INT1, INT2, INT3
EC0, EC1
RESET
Specifications
Min.
Typ.
Max.
1
-
8
80
-
-
-
-
20
-
-
20
2
-
-
8
-
-
Unit
MHz
nS
nS
mS
tSYS
tSYS
XIN
RESET
INT0, INT1
INT2, INT3
EC0, EC1
1/fCP
tSYS
tCPW
tCPW
tRCP
tFCP
0.5V
VDD-0.5V
tRST
0.2VDD
tEPW
tEPW
0.2VDD
0.8VDD
Figure 8-1 Timing Chart
June. 2001 Ver 1.2
19
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