Rainbow Electronics W79E8213R User Manual
Page 93
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Preliminary W79E8213/W79E8213R Data Sheet
Publication Release Date: July 11, 2008
- 93 -
Revision A2
26.5 AC ELECTRICAL CHARACTERISTICS
t
CLCL
t
CLCX
t
CHCX
t
CLCH
t
CHCL
Note: Duty cycle is 50%.
26.6 EXTERNAL CLOCK CHARACTERISTICS
PARAMETER SYMBOL
MIN. TYP. MAX. UNITS
NOTES
Clock High Time
t
CHCX
12.5 -
-
nS
Clock Low Time
t
CLCX
12.5 -
-
nS
Clock Rise Time
t
CLCH
- - 10 nS
Clock Fall Time
t
CHCL
- - 10 nS
26.7 AC SPECIFICATION
PARAMETER SYMBOL
VARIABLE CLOCK
MIN.
VARIABLE CLOCK
MAX.
UNITS
Oscillator Frequency
1/t
CLCL
0
20 MHz
26.8 TYPICAL APPLICATION CIRCUITS
CRYSTAL C1
C2
R
4MHz ~ 20 MHz
without
without
without
The above table shows the reference values for crystal applications.
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