TS83C51RD2_14 Datasheet, PDF (69/86 Pages) ATMEL Corporation – extra 8-bit I/O ports available on RD2 with high pin count packages

AT/TS8xC51Rx2
Table 11-11. AC Parameters for a Variable Clock: derating formula
Standard
Symbol
Type
Clock
X2 Clock
-M
-V
-L
T_XLXL
T_QVHX
T_XHQX
T_XHDX
T_XHDV
Min
12 T
6T
Min
10 T - x
5T-x
50
50
50
Min
2T-x
T-x
20
20
20
Min
x
x
0
0
0
Max
10 T - x
5 T- x
133
133
133
Units
ns
ns
ns
ns
ns
11.5.8 Shift Register Timing Waveforms
Figure 11-9. Shift Register Timing Waveforms
INSTRUCTION
0
1
2
3
4
5
6
7
8
ALE
CLOCK
OUTPUT DATA
WRITE to SBUF
INPUT DATA
CLEAR RI
T_XLXL
T_QVXH
T_XHQX
0
1
2
3
4
5
6
7
T_XHDV
T_XHDX
SET TI
VALID
VALID
VALID
VALID
VALID
VALID
VALID VALID
SET RI
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