TS80C52X2
Table 32. AC Parameters for a Variable Clock
Symbol
Type
Standard X2 Clock
Clock
-M
-V
-L
Units
T
Min
Min
Min
Min
Max
12 T
10 T - x
2 T - x
x
6 T
5 T - x
T - x
x
ns
ns
ns
ns
ns
XLXL
QVHX
XHQX
XHDX
XHDV
T
T
T
T
50
30
0
50
20
0
133
50
0
10 T - x
5 T- x
50
50
133
10.4.8 Shift Register Timing Waveforms
0
1
2
3
4
5
6
7
8
INSTRUCTION
ALE
T
XLXL
CLOCK
T
XHQX
T
QVXH
0
1
2
3
4
5
6
7
OUTPUT DATA
T
SET TI
XHDX
T
XHDV
WRITE to SBUF
INPUT DATA
VALID
VALID
VALID
VALID
VALID
VALID
VALID
VALID
SET RI
CLEAR RI
Figure 20. Shift Register Timing Waveforms
50
Rev. B - Jan. 25, 1999
Preliminary