SAB80C515-16-N SIEMENS [Siemens Semiconductor Group], SAB80C515-16-N Datasheet - Page 50

• Manufacturer Part Number: SAB80C515-16-N
• Description: 8-Bit CMOS Single-Chip Microcontroller
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

AC Characteristics (cont’d)
Semiconductor Group
Parameter
External Data Memory Characteristics
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 t
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
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
200
200
65
–
0
–
–
–
100
70
20
5
200
10
–
min.
20 MHz
clock
49
–
–
–
155
–
40
250
285
200
–
80
–
–
–
0
max.
1/t
6 t
6 t
2 t
–
0
–
–
–
3 t
4 t
t
t
7 t
t
–
CLCL
CLCL
CLCL
Limit values
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
min.
– 30
– 45
– 40
Variable clock
– 100 –
– 100 –
– 130 –
– 150 –
= 3.5 MHz to 20 MHz
– 35
– 50
SAB 80C515/80C535
–
5 t
–
2 t
8 t
9 t
3 t
t
–
–
0
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
max.
+ 30
– 60
– 150
– 95
– 165
+ 50
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns