SAF-C502-2R20N Siemens Semiconductor Group, SAF-C502-2R20N Datasheet - Page 37

• Manufacturer Part Number: SAF-C502-2R20N
• Description: 8-Bit CMOS Microcontroller
• Manufacturer: Siemens Semiconductor Group

AC Characteristics for SAB-C502-L / C502-2R
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
Semiconductor Group
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
RLRH
WLWH
LLAX2
RLDV
RHDX
RHDZ
LLDV
AVDV
LLWL
AVWL
WHLH
QVWX
QVWH
WHQX
RLAZ
min.
400
400
30
–
0
–
–
–
200
203
43
33
433
33
–
36
12 MHz
Clock
max.
–
–
–
252
–
97
517
585
300
–
123
–
–
–
0
min.
6
6
t
–
0
–
–
–
3
4
t
t
7
t
–
Limit Values
1/
CLCL
CLCL
CLCL
CLCL
t
t
t
t
t
CLCL
CLCL
CLCL
CLCL
CLCL
t
CLCL
– 53
– 40
– 50
– 50
– 100
– 100
– 50
– 130
– 150
Variable Clock
= 3.5 MHz to 12 MHz
–
5
–
2
8
9
3
t
–
–
0
max.
–
–
–
–
CLCL
t
t
t
t
t
CLCL
CLCL
CLCL
CLCL
CLCL
+ 40
– 165
– 70
– 150
– 165
+ 50
C502
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns