HCS301-IP Microchip Technology, HCS301-IP Datasheet - Page 16

• Manufacturer Part Number: HCS301-IP
• Description: KEELOQ CODE HOPPING ENCODER
• Manufacturer: Microchip Technology

HCS301
FIGURE 8-2:
TABLE 8-3:
FIGURE 8-3:
FIGURE 8-4:
DS21143A-page 16
V
Commercial (C): Tamb = 0 C to +70 C
Industrial
Time to second button press
Transmit delay from button detect
Debounce delay
Auto-shutoff time-out period
Note 1: T
DD
= +3.5 to13.0V
PWM
Sn
2: The auto shutoff timeout period is not tested.
P0
intention was to press the combination of buttons.
BP
Button Press
Detect
T
is the time in which a second button can be pressed without completion of the first code word and the
(I): Tamb = -40 C to +85 C
E
T
Parameter
T
POWER UP AND TRANSMIT TIMING
POWER UP AND TRANSMIT TIMING REQUIREMENTS
PWM FORMAT
BP
PREAMBLE/HEADER FORMAT
E
T
E
T
Preamble
Preamble
LOGIC ‘0’
LOGIC ‘1’
DB
23 T
T
P
T
E
TD
T
BP
Header
T
H
Symbol
T
T
T
T
Preliminary
BP
TD
DB
TO
Code
Word
1
P12
Encrypted Portion
T
of Transmission
TO
Word Time
10 + Code
Code Word Transmission
T
Min
10
20
HOP
6
Code
Word
2
Header
Word Time
25 + Code
Max
Code
Word
10 T
25
15
40
3
E
Fixed portion of
Transmission
T
FIX
1996 Microchip Technology Inc.
Unit
ms
ms
ms
Code
Word
s
n
Bit 0 Bit 1
Transmission
Data Word
Guard
Time
T
Remarks
(Note 1)
(Note 2)
G