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SAB 80C515/80C535
AC Characteristics (cont’d)
Parameter
Symbol
Limit values
Unit
20 MHz
clock
min. max.
Variable clock
1/tCLCL = 3.5 MHz to 20 MHz
min.
max.
System Clock Timing
ALE to CLKOUT
tLLSH
310 –
7 tCLCL – 40 –
ns
CLKOUT high time
tSHSL
60
–
2 tCLCL – 40 –
ns
CLKOUT low time
tSLSH
460 –
10 tCLCL – 40 –
ns
CLKOUT low to ALE high tSLLH
10 90 tCLCL – 40
tCLCL + 40
ns
External Clock Cycle
Semiconductor Group
51