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HCS361-P Datasheet(PDF) 19 Page - Microchip Technology

Part # HCS361-P
Description  KEELOQ CODE HOPPING ENCODER
PDF  24 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

HCS361-P Datasheet(HTML) 19 Page - Microchip Technology

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HCS361
© 1996 Microchip Technology Inc.
Preliminary
DS40146C-page 19
FIGURE 8-9:
HCS361 NORMALIZED TE VS. TEMP
0.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.7
0.6
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
TABLE 8-4
CODE WORD TRANSMISSION TIMING PARAMETERS
PWM Mode (TXWAK = 0)
VDD = +2.0 to 6.6V
Commercial (C):Tamb = 0
°C to +70°C
Industrial
(I):Tamb = -40
°C to +85°C
Code Words Transmitted
FAST = 0,
TXWAK = 0
FAST = 1,
TXWAK = 0
Symbol
Characteristic
Number
of TE
Min
Typ.
Max.
Number
of TE
Min.
Typ.
Max.
Units
TE
Basic pulse element
1
260
400
620
1
130
200
310
µs
TBP
PWM bit pulse width
3
780
1200
1860
3
390
600
930
µs
TP
Preamble duration
28
7.3
11.2
17.4
28
3.6
5.6
8.7
ms
TH
Header duration
10
2.6
4.0
6.2
10
1.3
2.0
3.1
ms
THOP
Hopping code duration
96
25.0
38.4
59.5
96
12.5
19.2
29.8
ms
TFIX
Fixed code duration
105
27.3
42.0
65.1
105
13.7
21.0
32.6
ms
TG
Guard Time
16
4.2
6.4
9.9
32
4.2
6.4
9.9
ms
Total Transmit Time
255
66.3
102.0
158.1
271
35.2
54.2
84.0
ms
PWM data rate
1282
833
538
2564
1667
1075
bps
Note:
The timing parameters are not tested but derived from the oscillator clock.
PWM Mode (TXWAK = 1)
VDD = +2.0 to 6.6V
Commercial (C):Tamb = 0
°C to +70°C
Industrial
(I):Tamb = -40
°C to +85°C
Code Words Transmitted
FAST = 0,
TXWAK = 1
FAST = 1,
TXWAK = 1
Symbol
Characteristic
Number
of TE
Min
Typ.
Max.
Number
of TE
Min.
Typ.
Max.
Units
TE
Basic pulse element
1
130
200
310
1
65
100
155
µs
TBP
PWM bit pulse width
6
780
1200
1860
6
390
600
930
µs
TP
Preamble duration
28
3.6
5.6
8.7
28
1.8
2.8
4.3
ms
TH
Header duration
10
1.3
2.0
3.1
10
0.7
1.0
1.6
ms
THOP
Hopping code duration
192
25.0
38.4
59.5
192
12.5
19.2
29.8
ms
TFIX
Fixed code duration
210
27.3
42.0
65.1
210
13.7
21.0
32.6
ms
TG
Guard Time
32
4.2
6.4
9.9
64
4.2
6.4
9.9
ms
Total Transmit Time
472
61.4
94.4
146.3
504
32.8
50.4
78.1
ms
PWM data rate
—
1282
833
538
—
2564
1667
1075
bps
Note:
The timing parameters are not tested but derived from the oscillator clock.



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