參數(shù)資料
型號(hào): HCS412TSN
廠商: Microchip Technology Inc.
英文描述: KEELOQ Code Hopping Encoder and Transponder
中文描述: 而Keeloq跳碼編碼器和轉(zhuǎn)發(fā)器
文件頁數(shù): 4/44頁
文件大?。?/td> 704K
代理商: HCS412TSN
HCS412
DS41099C-page 4
Preliminary
2002 Microchip Technology Inc.
2.0
DEVICE DESCRIPTION
2.1
Pinout Description
The HCS412
’s footprint is identical to other encoders in
the K
EE
L
OQ
family, except for the two pins reserved for
low frequency communication.
TABLE 2-1:
PINOUT SUMMARY
FIGURE 2-1:
S0/S1 PIN DIAGRAM
FIGURE 2-2:
S2/RFEN/LC1 PIN DIAGRAM
FIGURE 2-3:
LC0 PIN DIAGRAM
Pin
Name
Pin
Number
Description
S0
1
Button input pin with Schmitt Trigger detector and internal 60 k
(nominal) pull-down
resistor (Figure 2-1).
Button input pin with Schmitt Trigger detector and internal 60 k
(nominal) pull-down
resistor (Figure 2-1).
Multi-purpose input / output pin (Figure 2-2).
Button input pin with Schmitt Trigger detector and internal pull-down resistor.
RFEN output driver.
LC1 low frequency (LF) antenna output driver for inductive responses and LC bias.
Programming clock signal input.
Low frequency (LF) antenna input with automatic gain control for inductive reception and
low frequency output driver for inductive responses (Figure 2-3).
Ground reference.
Transmission data output driver. Programming input / output data signal (Figure 2-4).
LED output driver (Figure 2-5).
Positive supply voltage.
S1
2
S2/RFEN/LC1
3
LC0
4
GND
DATA
LED
V
DD
5
6
7
8
60 k
SWITCH
IN
>
S0
S1
10V
100
VBIAS
V
DD
SWITCH 2
INPUT
>
<
S2LC OPTION
LC
OUTPUT
RFEN
OUT
RECTIFIER AND
REGULATOR
V
DD
10V
100
LC
INPUT
LC
OUTPUT
S2LC OPTION
AMP
AND
DET
>
<
LC0
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