hcs410 Microchip Technology Inc., hcs410 Datasheet - Page 29

• Manufacturer Part Number: hcs410
• Description: Keeloq Code Hopping Encoder And Transponder Keeloq Code Hopping Encoder And Transponder
• Manufacturer: Microchip Technology Inc.

FIGURE 5-2:
TABLE 5-4:
 2001 Microchip Technology Inc.
V
Commercial
Industrial
V
Commercial
Industrial
Symbol
DD
DD
Symbol
T
T
T
T
T
Note: The timing parameters are not tested but derived from the oscillator clock.
T
T
Note: The timing parameters are not tested but derived from the oscillator clock.
T
T
T
HOP
—
T
T
T
FIX
T
HOP
BP
—
= +2.0V to 6.3V
= +2.0V to 6.3V
FIX
E
H
G
BP
P
E
P
H
G
Code hopping duration
Code hopping duration
PWM bit pulse width
Basic pulse element
Fixed code duration
PWM bit pulse width
Basic pulse element
Preamble duration
Total transmit time
Fixed code duration
Preamble duration
Total transmit time
(C): T
(I): T
Header duration
(C): T
(I): T
Characteristic
Header duration
Characteristic
Guard time
Guard time
HCS410 NORMALIZED TE VS. TEMP
CODE WORD TRANSMISSION TIMING PARAMETERS—PWM MODEÞ
AMB
AMB
AMB
AMB
= 0°C to +70°C
= -40°C to +85°C
= 0°C to +70°C
= -40°C to +85°C
T
E
1.10
1.08
1.06
1.04
1.02
1.00
0.98
0.96
0.94
0.92
0.90
Number
Number
of T
of T
Note:
295
111
-50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90
295
111
32
10
96
46
32
10
96
46
1
3
1
3
E
E
Values are for calibrated oscillator.
39.96
106.2
180.0
540.0
17.28
19.98
1080
Min.
Min.
16.6
5.76
1.80
53.1
360
3.6
8.3
12
35
Preliminary
Temperature °C
BSL1 = 0,
BSL1 = 1,
BSL0 = 0
BSL0 = 0
200.0
600.0
19.20
118.0
1200
Typ.
Typ.
12.8
38.4
44.4
18.4
22.2
59.0
400
4.0
6.0
2.0
9.6
T
T
E
E
Min.
Max.
220.0
660.0
21.12
24.42
48.84
129.8
Max.
1320
Max.
20.2
7.04
2.20
10.1
64.9
440
4.4
14
42
Code Words Transmitted
Code Words Transmitted
Number
Number
of T
of T
295
111
295
111
32
10
96
46
32
10
96
46
1
3
1
3
E
E
180.0
540.0
17.28
19.98
270.0
Min.
5.76
1.80
53.1
Min.
90.0
2.88
0.90
8.64
9.99
26.6
8.3
41
BSL1 = 0,
BSL1 = 0,
BSL0 = 1
BSL0 = 1
V
200.0
600.0
19.20
22.20
100.0
300.0
Typ.
59.0
Typ.
9.60
29.5
DD
11.1
Typical
6.0
2.0
9.6
3.0
1.0
4.6
LEGEND
= 2.0V
= 3.0V
= 6.0V
HCS410
DS40158E-page 29
110.0
330.0
10.56
12.21
220.0
660.0
21.12
24.42
Max.
Max.
3.52
1.10
32.5
7.04
2.20
10.1
64.9
5.1
Units
Units
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
µ
µ
µ
µ
s
s
s
s