TS80C52X2
Table 29. AC Parameters for a Variable Clock
Symbol
Type
Standard X2 Clock
Clock
-M
-V
-L
Units
T
Min
Min
Max
Min
Max
Max
Max
Min
Max
Min
Min
Min
Min
Max
Min
Max
6 T - x
6 T - x
5 T - x
x
3 T - x
3 T - x
2.5 T - x
x
45
45
25
0
15
10
23
0
100
100
95
0
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
RLRH
T
WLWH
T
RLDV
RHDX
T
T
2 T - x
8 T - x
9 T - x
3 T - x
3 T + x
4 T - x
T - x
T - x
35
40
60
35
35
60
22
30
15
0
20
33
50
20
15
40
17
27
10
0
60
90
90
60
60
100
32
70
30
0
RHDZ
T
4T -x
LLDV
T
4.5 T - x
1.5 T - x
1.5 T + x
2 T - x
0.5 T - x
3.5 T - x
0.5 T - x
x
AVDV
T
LLWL
LLWL
T
T
AVWL
QVWX
QVWH
WHQX
T
T
T
7 T - x
T - x
T
x
RLAZ
WHLH
WHLH
T
T
T - x
0.5 T - x
0.5 T + x
20
20
12
12
30
30
T + x
10.4.5 External Data Memory Write Cycle
T
WHLH
ALE
PSEN
WR
T
T
LLWL
WLWH
T
QVWX
T
T
T
QVWH
WHQX
LLAX
PORT 0
PORT 2
A0-A7
DATA OUT
T
AVWL
ADDRESS
OR SFR-P2
ADDRESS A8-A15 OR SFR P2
Figure 18. External Data Memory Write Cycle
48
Rev. B - Jan. 25, 1999
Preliminary
TEMIC [ TEMIC SEMICONDUCTORS ]
