MC81F4104
XIN
XOUT
Figure 7-6 External Clock
7.10 External RC Oscillation Characteristics
(T = - 40 C to + 85 C, V
A
= 2.2 V to 5.5 V)
DD
Parameter
Symbol
Conditions
Min
Typ.
Max
Units
RC oscillator freque-
fERC
1
–
8
MHz
TA = 25 C
(1)
ncy Range
=5.5V, T = 25 C
A
V
– 6
–
–
+ 6
DD
Accuracy of RC
ACCERC
tSUERC
%
V
DD
=5.5V,
(2)
Oscillation
– 12
+ 12
T = – 10 C to + 70 C
A
RC oscillator setup
–
–
10
mS
TA = 25 C
(3)
time
NOTES:
1. The external resistor is connected between VDD and XIN pin and the 270pF capacitor is
connected between XIN and
V pin. (X pin can be used as a normal port). The frequency is adjusted by external
SS
OUT
resistor.
2. The min/max frequencies are within the range of RC OSC frequency (1MHz to 8MHz)
3. Data based on characterization results, not tested in production
XIN
VSS
VDD
270pF
R
Figure 7-7 External Clock
26
October 19, 2009 Ver.1.35
FINECHIPS [ FINECHIPS ]
