hcs412 Microchip Technology Inc., hcs412 Datasheet - Page 17
hcs412
Manufacturer Part Number
hcs412
Description
Keeloq? Code Hopping Encoder And Transponder
Manufacturer
Microchip Technology Inc.
Datasheet
1.HCS412.pdf
(44 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
hcs412-I/SN
Manufacturer:
MICROCHI
Quantity:
20 000
TABLE 3-9:
V
Commercial (C):T
Industrial
Time to second button press
Transmit delay from button detect
Debounce delay on button press
Debounce delay on button release
Auto-shutoff time-out period
Long preamble
LED on time
LED off time
LED on time (V
Time to delayed SEED
transmission
Queue Time
Note 1: T
DD
2002 Microchip Technology Inc.
= +2.0 to 6.6V
2: Transmit delay maximum value, if the previous transmission was successfully transmitted.
3: The auto-shutoff time-out period is not tested.
4: The LED times specified for V
5: LED on time if V
intention was to press the combination of buttons.
BP
Parameter
is the time in which a second button can be pressed without completion of the first code word where the
(I): T
DD
ENCODER TIMING SPECIFICATIONS
< V
AMB
AMB
LOW
= 0 C to +70 C
= -40 C to +85 C
DD
Trip Point)
< V
TRIP
specified by V
DD
Symbol
T
T
T
LEDOFF
T
T
T
T
T
LEDON
> V
T
T
T
LPRE
LEDL
DBP
DBR
DSD
QUE
BP
TD
TO
TRIP
Preliminary
specified by V
LOW
Word Time
44 + Code
in the configuration word.
Min.
20
14
18
LOW
Word Time
58 + Code
in the configuration word.
Typ.
480
200
30
20
20
20
64
32
30
3
Word Time
63 + Code
Max.
40
26
22
Unit
HCS412
ms
ms
ms
ms
ms
ms
ms
ms
ms
s
s
DS41099C-page 17
Remarks
Note 1
Note 2
Note 3
Note 4
Note 4
Note 5