SAB80C517-16-N-T40/85 Siemens Semiconductor Group, SAB80C517-16-N-T40/85 Datasheet - Page 51

• Manufacturer Part Number: SAB80C517-16-N-T40/85
• Description: 8-Bit CMOS Single-Chip Microcontroller
• Manufacturer: Siemens Semiconductor Group

AC Characteristics (cont’d)
Parameter
External Data Memory Characteristics
RD pulse width
WR pulse width
Address hold after ALE
RD to valid instr in
Data hold after RD
Data float after RD
ALE to valid data in
Address to valid data in
ALE to WR or RD
WR or RD high to ALE
high
Address valid to WR
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
WHLH
AVWL
QVWX
QVWX
WHQX
RLAZ
400
400
132
–
0
–
–
–
200
43
203
33
433
33
–
12 MHz Clock
min
50
–
–
–
252
–
97
517
585
300
123
–
–
–
–
0
max.
6 t
6 t
2 t
–
0
–
–
–
3 t
t
4 t
t
7 t
t
–
Limit Values
1/t
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
min.
– 40
– 50
– 50
Variable Clock
– 100
– 50
– 100
– 30
– 130
– 150
= 3.5 MHz to 12 MHz
SAB 80C517/80C537
–
–
–
5 t
–
2 t
8 t
9 t
3 t
t
–
–
–
–
0
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
max.
+40
– 165
– 150
– 165
+ 50
– 70
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns