C511 Datasheet, PDF (34/43 Pages) Siemens Semiconductor Group – 8-Bit CMOS Microcontroller

C511 / C513
External Data Memory Characteristics
Parameter
RD pulse width
WR pulse width
Address hold after ALE
RD to valid data in
Data hold after RD
Data float after RD
ALE to valid data in
Address to valid data in
ALE to WR or RD
Address valid to WR or RD
WR or RD high to ALE high
Data valid to WR transition
Data setup before WR
Data hold after WR
Address float after RD
Symbol
Limit Values
Unit
12 MHz
Clock
min. max.
Variable Clock
1/t_CLCL = 3.5 MHz to 12 MHz
min.
max.
t_RLRH
t_WLWH
t_LLAX2
t_RLDV
t_RHDX
t_RHDZ
t_LLDV
t_AVDV
t_LLWL
t_AVWL
t_WHLH
t_QVWX
t_QVWH
t_WHQX
t_RLAZ
400 –
6t_CLCL – 100 –
ns
400 –
6t_CLCL – 100 –
ns
132 –
2t_CLCL – 35
–
ns
–
252 –
5t_CLCL – 165 ns
0
–
0
–
ns
–
97 –
2t_CLCL – 70
ns
–
517 –
8t_CLCL – 150 ns
–
585 –
9t_CLCL – 165 ns
200 300 3t_CLCL – 50
3t_CLCL + 50
ns
203 –
4t_CLCL – 130 –
ns
43
123 t_CLCL – 40
t_CLCL + 40
ns
33 –
t_CLCL – 50
–
ns
433 –
7t_CLCL – 150 –
ns
33 –
t_CLCL – 50
–
ns
–
0
–
0
ns
Semiconductor Group
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