SAB80C517_05 Datasheet, PDF (320/323 Pages) Siemens Semiconductor Group – 8-Bit CMOS Single-Chip Microcontroller

SAB 80C517/80C537
AC Characteristics (cont’d)
Parameter
Symbol
Limit Values
Unit
12 MHz Clock
Variable Clock
1/t _CLCL =3.5 MHz to 12 MHz
min. max.
min.
max.
System Clock Timing
ALE to CLKOUT
CLKOUT high time
CLKOUT low time
CLKOUT low to ALE
high
t_LLSH
t_SHSL
t_SLSH
t_SLLH
543 –
7t_CLCL – 40 –
ns
127 –
2t_CLCL – 40 –
ns
793 –
10t_CLCL – 40 –
ns
43
123 t_CLCL – 40
t_CLCL + 40
ns
AC Characteristics (cont’d)
Parameter
Symbol
Limit Values
Unit
16 MHz Clock
Variable Clock
1/t _CLCL = 3.5 MHz to 16 MHz
min. max.
min.
max.
System Clock Timing
ALE to CLKOUT
CLKOUT high time
CLKOUT low time
CLKOUT low to ALE
high
t_LLSH
t_SHSL
t_SLSH
t_SLLH
398 –
7t_CLCL – 40 –
ns
85
–
2t_CLCL – 40 –
ns
585 –
10t_CLCL – 40 –
ns
23
103 t_CLCL – 40
t_CLCL + 40
ns
Semiconductor Group
321