TS80C54 ATMEL [ATMEL Corporation], TS80C54 Datasheet - Page 49
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TS80C54
Manufacturer Part Number
TS80C54
Description
8-bit CMOS Microcontroller 16/32 Kbytes ROM/OTP
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.TS80C54.pdf
(62 pages)
- Current page: 49 of 62
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19.5.3
4431E–8051–04/06
External Program Memory Read Cycle
PORT 0
PORT 2
PSEN
ALE
INSTR IN
OR SFR-P2
ADDRESS
Table 19-7.
Figure 19-6. External Program Memory Read Cycle
Symbol
T
T
T
T
T
T
T
T
T
T
T
PLPH
LHLL
AVLL
LLAX
LLPL
PXIX
AVIV
PLAZ
PLIV
PXIZ
LLIV
T
LHLL
T
T
AC Parameters for a Variable Clock: derating formula
LLAX
AVLL
A0-A7
Type
Max
Max
Max
Max
Max
Min
Min
Min
Min
Min
Min
T
AVIV
ADDRESS A8-A15
T
LLIV
T
LLPL
TPLAZ
T
PLIV
Standard
2 T - x
4 T - x
3 T - x
3 T - x
5 T - x
Clock
T - x
T - x
T - x
T - x
x
x
T
PLPH
INSTR IN
T
PXIX
X2 Clock
0.5 T - x
0.5 T - x
0.5 T - x
1.5 T - x
1.5 T - x
0.5 T - x
2.5 T - x
12 T
2 T - x
T - x
x
x
CLCL
T
PXIZ
T
-M
10
15
15
30
10
20
40
40
10
PXAV
0
7
A0-A7
ADDRESS A8-A15
AT/TS8xC54/8X2
13
13
22
15
25
30
10
-V
8
8
0
5
INSTR IN
15
20
20
35
15
25
45
15
45
10
-L
0
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
49
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