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AT80C51RA2-RLSIV Datasheet(PDF) 64 Page - ATMEL Corporation

Part # AT80C51RA2-RLSIV
Description  High Performance 8-bit Microcontroller
PDF  86 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT80C51RA2-RLSIV Datasheet(HTML) 64 Page - ATMEL Corporation

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64
4188F–8051–01/08
AT/TS8xC51Rx2
11.5.2
External Program Memory Characteristics
Table 11-5.
Symbol Description
Table 11-6.
AC Parameters for Fix Clock
Symbol
Parameter
T
Oscillator clock period
TLHLL
ALE pulse width
TAVLL
Address Valid to ALE
TLLAX
Address Hold After ALE
TLLIV
ALE to Valid Instruction In
TLLPL
ALE to PSEN
TPLPH
PSEN Pulse Width
TPLIV
PSEN to Valid Instruction In
TPXIX
Input Instruction Hold After PSEN
TPXIZ
Input Instruction FloatAfter PSEN
TPXAV
PSEN to Address Valid
TAVIV
Address to Valid Instruction In
TPLAZ
PSEN Low to Address Float
Speed
-M
40 MHz
-V
X2 mode
30 MHz
60 MHz equiv.
-V
standard
mode
40 MHz
-L
X2 mode
20 MHz
40 MHz equiv.
-L
standard
mode
30 MHz
Units
Symbol
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
T
25
33
25
50
33
ns
TLHLL
40
25
42
35
52
ns
TAVLL
10
4
12
5
13
ns
TLLAX
10
4
12
5
13
ns
TLLIV
70
45
78
65
98
ns
TLLPL
15
9
17
10
18
ns
TPLPH
55
35
60
50
75
ns
TPLIV
35
25
50
30
55
ns
TPXIX
0
0
0
0
0
ns
TPXIZ
18
12
20
10
18
ns
TAVIV
85
53
95
80
122
ns
TPLAZ
10
10
10
10
10
ns



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