TS83C51RB2-VCJD View Datasheet(PDF) - Atmel Corporation
Part Name
Description
Manufacturer
TS83C51RB2-VCJD Datasheet PDF : 74 Pages
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TS80C51RA2/RD2
TS83C51RB2/RC2/RD2
TS87C51RB2/RC2/RD2
Table 38. AC Parameters for a Variable Clock: derating formula
Symbol
Type Standard X2 Clock
-M
-V
-L
Units
Clock
TLHLL
Min
2T-x
T-x
10
8
15
ns
TAVLL
Min
T-x
0.5 T - x
15
13
20
ns
TLLAX
Min
T-x
0.5 T - x
15
13
20
ns
TLLIV
Max
4T-x
2T-x
30
22
35
ns
TLLPL
Min
T-x
0.5 T - x
10
8
15
ns
TPLPH
Min
3T-x
1.5 T - x
20
15
25
ns
TPLIV
Max
3T-x
1.5 T - x
40
25
45
ns
TPXIX
Min
x
x
0
0
0
ns
TPXIZ
Max
T-x
0.5 T - x
7
5
15
ns
TAVIV
Max
5T-x
2.5 T - x
40
30
45
ns
TPLAZ
Max
x
x
10
10
10
ns
10.5.3. External Program Memory Read Cycle
ALE
PSEN
PORT 0 INSTR IN
PORT 2
ADDRESS
OR SFR-P2
TLHLL
TLLAX
TAVLL
A0-A7
TLLIV
TLLPL
TPLPH
12 TCLCL
TPLIV
TPLAZ
TPXIX
INSTR IN
TPXAV
TPXIZ
A0-A7
TAVIV
ADDRESS A8-A15
INSTR IN
ADDRESS A8-A15
Figure 25. External Program Memory Read Cycle
64
Rev. C - 06 March, 2001
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