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HCS200 Datasheet(PDF) 22 Page - Microchip Technology

No. de pieza HCS200
Descripción Electrónicos  KEELOQ짰 Code Hopping Encoder 32-bit hopping code
PDF  34 Pages
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Fabricante Electrónico  MICROCHIP [Microchip Technology]
Página de inicio  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

HCS200 Datasheet(HTML) 22 Page - Microchip Technology

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HCS200
DS40138D-page 22
© 2011 Microchip Technology Inc.
FIGURE 9-4:
CODE WORD FORMAT: PREAMBLE/HEADER PORTION
FIGURE 9-5:
CODE WORD FORMAT: DATA PORTION
TABLE 9-3:
CODE WORD TIMING
VDD = +3.5 to 13.0V
Commercial(C):Tamb = 0°C to +70°C
Industrial(I):Tamb = -40°C to +85°C
Code Words Transmitted
All
1 out of 2
Symbol
Characteristic
Number
of TE
Min.
Typ.
Max.
Min.
Typ.
Max.
Units
TE
Basic pulse element
1
280
400
620
140
200
310
μs
TBP
PWM bit pulse width
3
840
1200
1860
420
600
930
μs
TP
Preamble duration
23
6.4
9.2
14.3
3.2
4.6
7.1
ms
TH
Header duration
10
2.8
4.0
6.2
1.4
2.0
3.1
ms
THOP
Hopping code duration
96
26.9
38.4
59.5
13.4
19.2
29.8
ms
TFIX
Fixed code duration
102
28.6
40.8
63.2
14.3
20.4
31.6
ms
TG
Guard Time
39
10.9
15.6
24.2
5.5
7.8
12.1
ms
—
Total Transmit Time
270
75.6
108.0
167.4
37.8
54.0
83.7
ms
—
PWM data rate
—
1190
833
538
2381
1667
1075
bps
Note:
The timing parameters are not tested but derived from the oscillator clock.
50% Duty Cycle Preamble
Header
P1
P12
23 TE
10 TE
Data Bits
Bit 0 Bit 1
Bit 0 Bit 1
Header
Bit 30 Bit 31 Bit 32 Bit 33 Bit 58 Bit 59
Fixed Portion
Encrypted Portion
Guard
LSB
LSB
MSB
MSB S3
S0
S1
S2
VLOW RPT
Time
Serial Number
Button Code
Status
Bit 60 Bit 61 Bit 62 Bit 63 Bit 64 Bit 65



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