W79E825A Datasheet, PDF (122/127 Pages) Winbond – 8-BIT MICROCONTROLLER

W79E825A/824A/823B/822B Data Sheet
28.6 EXTERNAL CLOCK CHARACTERISTICS
PARAMETER
Clock High Time
Clock Low Time
Clock Rise Time
Clock Fall Time
SYMBOL
t_CHCX
t_CLCX
t_CLCH
t_CHCL
MIN.
12.5
12.5
-
-
TYP.
-
-
-
-
MAX.
-
-
10
10
UNITS
nS
nS
nS
nS
NOTES
28.7 AC SPECIFICATION
PARAMETER
Oscillator Frequency
SYMBOL VARIABLE CLOCK MIN. VARIABLE CLOCK MAX. UNITS
1/t_CLCL
0
20
MHz
28.8 TYPICAL APPLICATION CIRCUITS
CRYSTAL
4MHz ~ 20 MHz
C1
without
C2
without
R
without
The above table shows the reference values for crystal applications.
C1
XTAL1
R
XTAL2
C2
W79E825
W79E824
W79E823
W79E822
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