hcs412 Microchip Technology Inc., hcs412 Datasheet - Page 5

• Manufacturer Part Number: hcs412
• Description: Keeloq? Code Hopping Encoder And Transponder
• Manufacturer: Microchip Technology Inc.

FIGURE 2-4:
FIGURE 2-6:
DATA
OUT
2002 Microchip Technology Inc.
DATA
IN
OE
Battery-less Short Range Transponder
Long Range / Proximity Activated Transponder / Encoder
Short Range Transponder with RFEN Control / Long Range Encoder
>
>
<
DATA PIN DIAGRAM
TYPICAL APPLICATION CIRCUITS
120 k
RFEN
LC1
LC1
LC0
LC0
LC0
S0
S1
S0
S1
S0
S1
DATA
1
2
3
4
1
2
3
4
1
2
3
4
Preliminary
8
7
6
5
8
7
6
5
8
7
6
5
V
LED
DATA
GND
V
LED
DATA
GND
V
LED
DATA
GND
DD
DD
DD
FIGURE 2-5:
LED_ON
LED PIN DIAGRAM
>
RF
RF
HCS412
R
DS41099C-page 5
LED