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HCS500-I/P Datasheet

  • HCS500-I/P

  • REMOTE-CONTROL RECEIVER/DECODER|CMOS|DIP|8PIN

  • 403.41KB

  • 34頁

  • ETC

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HCS500
K
EE
L
OQ廬
Code Hopping Decoder
FEATURES
Security
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Encrypted storage of manufacturer鈥檚 code
Encrypted storage of crypt keys
Up to seven transmitters can be learned
K
EE
L
OQ
code hopping technology
Normal and Secure learning mechanisms
DESCRIPTION
The Microchip Technology Inc. HCS500 is a code hop-
ping decoder designed for secure Remote Keyless
Entry (RKE) systems. The HCS500 utilizes the pat-
ented K
EE
L
OQ
廬
code hopping system and high security
learning mechanisms to make this a canned solution
when used with the HCS encoders to implement a uni-
directional remote and access control systems. The
HCS500 can be used as a stand-alone decoder or in
conjunction with a microcontroller.
Operating
鈥?3.0V鈥?.5V operation
鈥?Internal oscillator
鈥?Auto bit rate detection
PACKAGE TYPE
PDIP, SOIC
V
DD
1
HCS500
2
3
4
8
7
6
5
V
SS
RFIN
S_CLK
S_DAT
Other
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鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Stand-alone decoder chipset
External EEPROM for transmitter storage
Synchronous serial interface
1 Kbit user EEPROM
8-pin DIP/SOIC package
EE_CLK
EE_DAT
MCLR
BLOCK DIAGRAM
Typical Applications
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鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
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鈥?/div>
Automotive remote entry systems
Automotive alarm systems
Automotive immobilizers
Gate and garage openers
Electronic door locks
Identity tokens
Burglar alarm systems
RFIN
Reception Register
DECRYPTOR
EE_DAT
External
EEPROM
CONTROL
EE_CLK
S_DAT
S_CLK
OSCILLATOR
MCLR
Compatible Encoders
All K
EE
L
OQ
encoders and transponders configured for
the following setting:
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鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
PWM modulation format (1/3-2/3)
T
E
in the range from 100us to 400us
10 x T
E
Header
28-bit Serial Number
16-bit Synchronization counter
Discrimination bits equal to Serial Number 8 LSbs
66- to 69-bit length code word.
The manufacturer鈥檚 code, crypt keys, and synchroniza-
tion information are stored in encrypted form in external
EEPROM. The HCS500 uses the S_DAT and S_CLK
inputs to communicate with a host controller device.
The HCS500 operates over a wide voltage range of
3.0 volts to 5.5 volts. The decoder employs automatic
bit-rate detection, which allows it to compensate for
wide variations in transmitter data rate. The decoder
contains sophisticated error checking algorithms to
ensure only valid codes are accepted.
漏
2002 Microchip Technology Inc.
DS40153C-page 1

HCS500-I/P 產(chǎn)品屬性

  • Microchip

  • 編碼器、解碼器、復用器和解復用器

  • 5.5 V

  • 3 V

  • + 85 C

  • Through Hole

  • PDIP-8

  • Tube

  • - 40 C

  • 60

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