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PCIF0 Folha de dados(PDF) 200 Page - ATMEL Corporation

Nome de Peças PCIF0
Descrição Electrónicos  High Performance, Low Power Atmel AVR 8-bit Microcontroller Advanced RISC Architecture
PDF  294 Pages
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Fabricante Electrônico  ATMEL [ATMEL Corporation]
Página de início  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

PCIF0 Folha de dados(HTML) 200 Page - ATMEL Corporation

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200
9219A–RFID–01/11
Atmel ATA5505 [Preliminary]
In automotive applications, distributed voltages are very disturbed. The internal Current
Source solution of Atmel
® AVR® immunizes the address detection the against any kind of volt-
age variations.
Note:
1. 5V range: Max Rload 30KΩ
3V range: Max Rload 15KΩ
Table 17-1.
Example of Resistor Values(±5%) for a 8-address System (AV
CC = 5V
(1))
Physical
Address
Resistor Value
Rload (Ohm)
Typical Measured
Voltage (V)
Minimum
Reading with
a 2.56V ref
Typical
Reading with
a 2.56V ref
Maximum
Reading with
a 2.56V ref
0
1 000
0.1
40
1
2 200
0.22
88
2
3 300
0.33
132
3
4 700
0.47
188
4
6 800
0.68
272
5
10 000
1
400
6
15 000
1.5
600
7
22 000
2.2
880
Table 17-2.
Example of Resistor Values(±1%) for a 16-address System (AV
CC = 5V
(1))
Physical
Address
Resistor Value
R
load (Ohm)
Typical Measured
Voltage (V)
Minimum
Reading with
a 2.56V ref
Typical
Reading with
a 2.56V ref
Maximum
Reading with
a 2.56V ref
0
1 000
0.1
384045
1
1 200
0.12
46
48
54
2
1500
0.15
57
60
68
3
1800
0.18
69
72
81
4
2200
0.22
84
88
99
5
2700
0.27
104
108
122
6
3300
0.33
127
132
149
7
4700
0.47
181
188
212
8
6 800
0.68
262
272
306
9
8 200
0.82
316
328
369
10
10 000
1.0
386
400
450
11
12 000
1.2
463
480
540
12
15 000
1.5
579
600
675
13
18 000
1.8
694
720
810
14
22 000
2.2
849
880
989
15
27 000
2.7
1023
1023
1023



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