GMS81C5108
7.6 AC Characteristics
(TA=25°C, VDD=4V, AVDD=4V, VSS=AVSS=0V)
Specifications
Parameter
Symbol
Pins
Unit
Min.
0.455
30
Typ.
Max.
4.19
35
fMCP
fSCP
tSYS
XIN
SXIN
-
Main Operating Frequency
Sub Operating Frequency
System Clock Frequency1
-
MHz
kHz
µS
32.768
-
0.477
4.395
Main Oscillation
Stabilization Time (4MHz)
-
-
-
-
-
-
20
60
100
2
Main Oscillation
Stabilization Time (910kHz)
tMST
XIN, XOUT
mS
Main Oscillation
Stabilization Time (455kHz)
-
tSST
Sub Oscillation
Stabilization Time
SXIN, SXOUT
1
S
tMCPW
tSCPW
tIW
XIN
SXIN
80
5
-
-
-
-
-
-
-
-
nS
µS
External Clock
“H” or “L” Pulse Width
tSYS
tSYS
Interrupt Pulse Width
INT0, INT1, INT2
RESET
2
tRST
RESET Input Pulse “L” Width
8
Event Counter Input
“H” or “L” Pulse Width
tECW
tSYS
EC0
2
-
-
1.SCMR=XXXX000X that is f
/2
MAIN
t
t
MCPW
MCPW
1/f
MCP
0.8V
0.8V
DD
XIN
0.2V
0.2V
DD
t
SYS
t
SCPW
t
SCPW
1/f
SCP
DD
SXIN
DD
t
RST
RESET
EC0
0.2V
DD
t
t
ECW
ECW
0.8V
DD
0.2V
DD
Figure 7-1 AC Timing Chart
14
JUNE 2001 Ver 1.0