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29.2.3
AC Characteristics of HD64F2194, HD64F2194C
Table 29.6 AC Characteristics of HD64F2194, HD64F2194C
(Conditions: Vcc = AVcc = 4.0 to 5.5 V, Vss = AVss = 0.0 V, Ta = –20 to +75°C unless
otherwise specified.)
Item
Symbol
Clock oscillation
f
OSC
frequency
Clock cycle time
t
cyc
Subclock
f
X
oscillation
frequency
Subclock cycle
t
subcyc
time
Oscillation
t
rc
stabilization time
External clock high
t
CPH
width
External clock low
t
CPL
width
External clock rise
t
CPr
time
External clock fall
t
CPf
time
External clock
t
DEXT
stabilization delay
time
Subclock input low
t
EXCLL
level pulse width
Subclock input high
t
EXCLH
level pulse width
Subclock input rise
t
EXCLr
time
Subclock input fall
t
ECXLf
time
Applicable
Pins
Test Conditions Min
OSC1, OSC2
OSC1, OSC2
X1, X2
Vcc=2.7 to 5.5V
X1, X2
Vcc=2.7 to 5.5V
OSC1, OSC2
Crystal oscillator
X1, X2
32kHz crystal
oscillator
Vcc=2.7 to 5.5V
OSC1
OSC1
OSC1
OSC1
OSC1
X1
Vcc=2.7 to 5.5V
X1
Vcc=2.7 to 5.5V
X1
Vcc=2.7 to 5.5V
X1
Vcc=2.7 to 5.5V
Values
Typ
Max
8
10
100
125
32.768
30.518
10
2
40
40
10
10
500
15.26
15.26
10
10
Rev. 2.0, 11/00, page 827 of 1037
Unit
Notes
MHz
ns
Figure 29.1
kHz
µs
Figure 29.2
ms
s
ns
Figure 29.1
ns
ns
ns
µs
Figure 29.3
µs
Figure 29.2
µs
ns
ns
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