SAB80C515-16-N SIEMENS [Siemens Semiconductor Group], SAB80C515-16-N Datasheet - Page 46

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

AC Characteristics (cont’d)
Parameter
External Data Memory Characteristics
RDpulse 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
high
Address valid to WR
Data valid to WR transi-
tion
Data setup before WR
Data hold after WR
Address float after RD
Semiconductor Group
WR or RD high to ALE
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
QVWH
WHQX
RLAZ
275
275
90
–
0
–
–
–
138
23
120
13
288
13
–
16 MHz clock
min.
45
–
–
–
148
–
55
350
398
238
103
–
–
–
–
0
max.
6 t
6 t
2 t
–
0
–
–
–
3 t
t
4 t
t
7 t
t
–
Limit values
CLCL
CLCL
CLCL
1/t
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
min.
– 40
– 50
– 50
– 100
– 50
– 100
– 35
– 130
– 150
Variable clock
= 3.5 MHz to 16 MHz
SAB 80C515/80C535
–
–
–
5 t
–
2 t
8t
9 t
3 t
t
–
–
–
–
0
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
max.
+ 40
– 150
– 165
– 70
– 165
+ 50
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns