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HCS410 Datasheet(PDF) 33 Page - Microchip Technology

No. de pieza HCS410
Descripción Electrónicos  KEELOQ짰 Code Hopping Encoder and Transponder 2-bit CRC, 2-bit queue
PDF  46 Pages
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Fabricante Electrónico  MICROCHIP [Microchip Technology]
Página de inicio  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

HCS410 Datasheet(HTML) 33 Page - Microchip Technology

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HCS410
© 2011 Microchip Technology Inc.
DS40158F-page 33
FIGURE 6-2:
HCS410 NORMALIZED TE VS. TEMP
TABLE 6-4:
CODE WORD TRANSMISSION TIMING PARAMETERS—PWM MODEÞ
VDD = +2.0V to 6.3V
Commercial
(C): TAMB = 0°C to +70°C
Industrial
(I): TAMB = -40°C to +85°C
Code Words Transmitted
BSL1 = 0,
BSL0 = 0
BSL1 = 0,
BSL0 = 1
Symbol
Characteristic
Number
of TE
Min.
Typ.
Max.
Number
of TE
Min.
Typ.
Max.
Units
TE
Basic pulse element
1
360
400
440
1
180.0
200.0
220.0
μs
TBP
PWM bit pulse width
3
1080
1200
1320
3
540.0
600.0
660.0
μs
TP
Preamble duration
32
12
12.8
14
32
5.76
6.0
7.04
ms
TH
Header duration
10
3.6
4.0
4.4
10
1.80
2.0
2.20
ms
THOP
Code hopping duration
96
35
38.4
42
96
17.28
19.20
21.12
ms
TFIX
Fixed code duration
111
39.96
44.4
48.84
111
19.98
22.20
24.42
ms
TG
Guard time
46
16.6
18.4
20.2
46
8.3
9.6
10.1
ms
—
Total transmit time
295
106.2
118.0
129.8
295
53.1
59.0
64.9
ms
Note: The timing parameters are not tested but derived from the oscillator clock.
VDD = +2.0V to 6.3V
Commercial
(C): TAMB = 0°C to +70°C
Industrial
(I): TAMB = -40°C to +85°C
Code Words Transmitted
BSL1 = 1,
BSL0 = 0
BSL1 = 0,
BSL0 = 1
Symbol
Characteristic
Number
of TE
Min.
Typ.
Max.
Number
of TE
Min.
Typ.
Max.
Units
TE
Basic pulse element
1
180.0
200.0
220.0
1
90.0
100.0
110.0
μs
TBP
PWM bit pulse width
3
540.0
600.0
660.0
3
270.0
300.0
330.0
μs
TP
Preamble duration
32
5.76
6.0
7.04
32
2.88
3.0
3.52
ms
TH
Header duration
10
1.80
2.0
2.20
10
0.90
1.0
1.10
ms
THOP
Code hopping duration
96
17.28
19.20
21.12
96
8.64
9.60
10.56
ms
TFIX
Fixed code duration
111
19.98
22.2
24.42
111
9.99
11.1
12.21
ms
TG
Guard time
46
8.3
9.6
10.1
46
41
4.6
5.1
ms
—
Total transmit time
295
53.1
59.0
64.9
295
26.6
29.5
32.5
ms
Note: The timing parameters are not tested but derived from the oscillator clock.
0.94
1.10
1.08
1.06
1.04
1.02
1.00
0.98
0.96
0.92
0.90
TE Min.
TE Max.
VDD LEGEND
= 2.0V
= 3.0V
= 6.0V
Typical
TE
Temperature °C
-50 -40 -30 -20 -10 0
10 20 30 40 50 60 70 80 90
Note:
Values are for calibrated oscillator.
40158F.book Page 33 Wednesday, June 1, 2011 10:36 AM



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