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參數(shù)資料
| 型號： | HCS361-IP |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | IC AC/DC CONV 5V 200MA SIP10 |
| 中文描述： | 而Keeloq跳碼編碼器 |
| 文件頁數(shù)： | 4/24頁 |
| 文件大小： | 343K |
| 代理商： | HCS361-IP |
HCS361
DS40146C-page 4
Preliminary
1996 Microchip Technology Inc.
2.0
DEVICE OPERATION
As shown in the typical application circuits (Figure 2-1),
the HCS361 is a simple device to use. It requires only
the addition of buttons and RF circuitry for use as the
transmitter in your security application. A description of
each pin is described in Table 2-1.
FIGURE 2-1:
TYPICAL CIRCUITS
TABLE 2-1
PIN DESCRIPTIONS
The high security level of the HCS361 is based on the
patented K
EE
L
technology. A block cipher type of
encryption algorithm based on a block length of 32 bits
and a key length of 64 bits is used. The algorithm
obscures the information in such a way that even if the
transmission information (before coding) differs by only
one bit from the information in the previous transmis-
sion, the next coded transmission will be totally differ-
ent. Statistically, if only one bit in the 32-bit string of
information changes, approximately 50 percent of the
coded transmission will change. The HCS361 will wake
up upon detecting a switch closure and then delay
approximately 6.5 ms for switch debounce (Figure 2-2).
The synchronization information, fixed information, and
switch information will be encrypted to form the hopping
code. The encrypted or hopping code portion of the
transmission will change every time a button is
pressed, even if the same button is pushed again.
Keeping a button pressed for a long time will result in
the same code word being transmitted until the button
is released or time-out occurs. A code that has been
transmitted will not occur again for more than 64K
transmissions. This will provide more than 18 years of
typical use before a code is repeated based on 10 oper-
ations per day. Overflow information programmed into
the encoder can be used by the decoder to extend the
number of unique transmissions to more than 128K.
If in the transmit process it is detected that a new but-
ton(s) has been pressed, a reset will immediately be
forced and the code word will not be completed. Please
note that buttons removed will not have any effect on
the code word unless no buttons remain pressed in
which case the current code word will be completed
and the power down will occur.
OQ
V
DD
B0
Tx out
S0
S1
S2
S3
LED
V
DD
PWM
V
SS
2 button remote control
B1
V
DD
Tx out
S0
S1
S2
S3
LED
V
DD
PWM
V
SS
5 button remote control (Note)
B4 B3 B2 B1 B0
Note:
Up to 15 functions can be implemented
by pressing more than one button simul-
Name
Pin
Number
Description
S0
S1
S2
1
2
3
Switch input 0
Switch input 1
Switch input 2/Can also be clock
pin when in programming mode
Switch input 3/Clock pin when in
programming mode
Ground reference connection
Pulse width modulation (PWM)
output pin/Data pin for
programming mode
Cathode connection for directly
driving LED during transmission
Positive supply voltage
connection
S3
4
V
SS
5
6
PWM
LED
7
V
DD
8
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HCS361-ISN | IC CONV AC/DC -12V 90MA SIP9 |
| HCS361-P | IC CONV AC/DC -5V 100MA SIP9 |
| HCS361-SN | IC AC/DC CONV 12V 350MA SIP12 |
| HCS365 | KEELOQ Code Hopping Encoder |
| HCS365T | KEELOQ Code Hopping Encoder |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HCS361-ISN | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:KEELOQ CODE HOPPING ENCODER |
| HCS361-P | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:KEELOQ CODE HOPPING ENCODER |
| HCS361-SN | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:KEELOQ CODE HOPPING ENCODER |
| HCS361T/SN | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 2-6.6V RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| HCS361T-I/SN | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 2-6.6V RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
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