TS80C31X2-LIB View Datasheet(PDF) - Atmel Corporation
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Description
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TS80C31X2-LIB Datasheet PDF : 42 Pages
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AT/TS80C31X2
Table 14-13. AC Parameters for a Variable Clock: derating formula
Symbol
TXLXL
TQVHX
TXHQX
TXHDX
TXHDV
Standard
Type
Clock
X2 Clock
-M
-V
-L
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
14.5.5 Shift Register Timing Waveforms
Units
ns
ns
ns
ns
ns
INSTRUCTION
ALE
CLOCK
OUTPUT DATA
WRITE to SBUF
INPUT DATA
CLEAR RI
0
1
2
3
4
5
6
7
8
TXLXL
TQVXH
TXHQX
0
1
2
3
4
5
6
7
TXHDV
TXHDX
SET TI
VALID
VALID
VALID
VALID
VALID
VALID
VALID VALID
SET RI
Symbol
TCLCL
TCHCX
TCLCX
TCLCH
TCHCL
TCHCX/TCLCX
Figure 14-9. Shift Register Timing Waveforms
Table 14-14. External Clock Drive Characteristics (XTAL1)
Parameter
Oscillator Period
High Time
Min
Max
25
5
Low Time
Rise Time
Fall Time
Cyclic ratio in X2 mode
5
5
5
40
60
Units
ns
ns
ns
ns
ns
%
37
4428D–8051–08/05
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