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)： 8/32頁
文件大?。?/td> 435K
代理商： HCS320
HCS320
DS41097C-page 8
2001 Microchip Technology Inc.
of unique values. This can be done by programming
OVR0 and OVR1 to 1s at the time of production. The
encoder will automatically clear OVR0 the first time that
the synchronization value wraps from 0xFFFF to
0x0000 and clear OVR1 the second time the counter
wraps. Once cleared, OVR0 and OVR1 cannot be set
again, thereby creating a permanent record of the
counter overflow. This prevents fast cycling of 64K
counter. If the decoder system is programmed to track
the overflow bits, then the effective number of unique
synchronization values can be extended to 196,608.
3.5.3
BAUD RATE SELECT BITS (BSL0,
BSL1)
BSL0 and BSL1 select the speed of transmission and
the code word blanking. Table 3-3 shows how the bits
are used to select the different baud rates and
Section 5.6 provides detailed explanation in code word
blanking.
TABLE 3-3:
BAUD RATE SELECT
3.5.4
LOW VOLTAGE TRIP POINT
SELECT
The low voltage trip point select bit is used to tell the
HCS320 what V
DD
level is being used. This information
will be used by the device to determine when to send
the voltage low signal to the receiver. When this bit is
set to a one, the V
DD
level is assumed to be operating
from a 9.0 volt or 12.0 volt V
DD
level. If the bit is set low,
then the V
DD
level is assumed to be 6.0 volts. Refer to
Figure 3-1 for voltage trip point.
FIGURE 3-1:
VOLTAGE TRIP POINTS
BY CHARACTERIZATION)
BSL1
BSL0
Basic Pulse
Element
400
μ
s
200
μ
s
100
μ
s
100
μ
s
Code Words
Transmitted
All
1 out of 2
1 out of 2
1 out of 4
0
0
1
1
0
1
0
1
-40
20
40
100
8.5
7.5
8.0
7.0
9.0
2.5
3.0
3.5
4.0
V
LOW
Temp (C)
Volts (V)
V
LOW
sel = 1
V
LOW
sel = 0
4.5
-20
0
60
80
5.0
5.5
Max
Min
Max
Min
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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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