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參數(shù)資料
| 型號： | HCS320 |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | KEELOQ Code Hopping Encoder |
| 中文描述： | 而Keeloq跳碼編碼器 |
| 文件頁數(shù)： | 13/32頁 |
| 文件大?。?/td> | 435K |
| 代理商： | HCS320 |
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2001 Microchip Technology Inc.
DS41097C-page 13
HCS320
5.7
SHIFT Key Operation
The HCS320 has four switch inputs usually connected
to buttons as shown in Figure 2-1: Typical Circuits.
Any button connected to input S0, S1 or S2 is called a
TRANSMIT button as it causes a transmission when
pressed.
The SHIFT button is connected to the SHIFT input.
Pressing the SHIFT button increments a counter by
one count and does not result in a transmission. The
counter value is called the shift level. Successive
presses of the SHIFT button can increase the shift level
up to three before wrapping back to zero. The shift level
is available for eight seconds when the SHIFT button is
released, after which the shift level is reset to zero.
When a TRANSMIT button is pressed, the function
code transmitted for that button depends on the shift
level. The transmitted function code corresponding to
shift level and S0, S1 and S2 switch activation is shown
in Table 5-1 for all legal combinations of shift level and
button input. Note that a shift level of zero means that
the SHIFT button has not been pressed (or it has been
pressed four times). The shift level is reset to zero after
a transmission.
The volatile nature of the shift level register requires the
HCS320 to be powered continuously for correct opera-
tion and not powered via the buttons.
TABLE 5-1:
PIN ACTIVATION TABLE
SHIFT
LEVEL
0
0
0
0
0
1
1
1
1
1
2
2
2
2
2
3
3
3
3
3
S2
S1
S0
FUNCTION
CODE
No Transmission
0h
1h
2h
3h
No Transmission
4h
5h
6h
7h
No Transmission
8h
9h
Ah
Bh
No Transmission
Ch
Dh
Eh
Fh
0
0
0
0
1
0
0
0
0
1
0
0
0
0
1
0
0
0
0
1
0
0
1
1
0
0
0
1
1
0
0
0
1
1
0
0
0
1
1
0
0
1
0
1
0
0
1
0
1
0
0
1
0
1
0
0
1
0
1
0
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| HCS320/P | 功能描述:編碼器、解碼器、復用器和解復用器 w/ Shiftkey 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 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| HCS320/SN | 功能描述:編碼器、解碼器、復用器和解復用器 w/ Shiftkey 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 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| HCS320_11 | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:KEELOQ? Code Hopping Encoder Automatic code word completion |
| HCS320-I/P | 功能描述:編碼器、解碼器、復用器和解復用器 w/ Shiftkey 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 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| HCS320-I/SN | 功能描述:編碼器、解碼器、復用器和解復用器 w/ Shiftkey 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 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
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