HCS361_11 Datasheet, PDF (30/42 Pages) Microchip Technology – KEELOQ® Code Hopping Encoder incorporates high security,

HCS361
TABLE 9-4: 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
BSEL = 0
BSEL = 1
Symbol
Characteristic
Min
Typ.
Max.
Min.
Typ.
TE
Basic pulse element
260
400
620
130
TBP
PWM bit pulse width
3
TP
Preamble duration
28
TS
Sync Pulse duration
10
TH
Header duration
10
THOP
Hopping code duration
96
TFIX
Fixed code duration
105
TG
Guard Time
18
⎯
Total Transmit Time
267
⎯
Total Transmit Time
69.4
106.8 165.5
36.7
⎯
PWM data rate
1282
833
538
2564
Note: The timing parameters are not tested but derived from the oscillator clock.
200
3
28
10
10
96
105
34
283
56.6
1667
Max.
310
87.7
1075
TABLE 9-5: TIMING PARAMETERS: 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
BSEL = 0
BSEL = 1
Symbol
Characteristic
Min
Typ.
Max.
Min.
Typ.
TE
Basic pulse element
130
200
310
65
TBP
PWM bit pulse width
6
TP
Preamble duration
28
TS
Sync Pulse duration
10
TH
Header duration
10
THOP
Hopping code duration
192
TFIX
Fixed code duration
210
TG
Guard Time
34
⎯
Total Transmit Time
484
⎯
Total Transmit Time
62.9
96.8 150.0 33.5
⎯
PWM data rate
1282
833
538
2564
Note: The timing parameters are not tested but derived from the oscillator clock.
100
6
28
10
10
192
210
66
516
51.6
1667
Max.
155
79.9
1075
Units
μs
TE
TE
TE
TE
TE
TE
TE
TE
ms
bps
Units
μs
TE
TE
TE
TE
TE
TE
TE
TE
ms
bps
DS40146F-page 30
© 2011 Microchip Technology Inc.