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參數(shù)資料
| 型號： | HCS515T-SL |
| 英文描述： | Consumer IC |
| 中文描述： | 消費性IC |
| 文件頁數(shù)： | 1/32頁 |
| 文件大?。?/td> | 438K |
| 代理商： | HCS515T-SL |
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2002 Microchip Technology Inc.
DS40183D-page 1
HCS515
FEATURES
Security
Encrypted storage of manufacturer’s code
Encrypted storage of encoder decryption keys
Up to seven transmitters can be learned code
hopping technology
Normal and secure learning mechanisms
Operating
4.5V – 5.5V operation
Internal oscillator
Auto bit rate detection
Other
Stand-alone decoder
Internal EEPROM for transmitter storage
Synchronous serial interface
1 Kbit user EEPROM
14-pin DIP/SOIC package
Typical Applications
Automotive remote entry systems
Automotive alarm systems
Automotive immobilizers
Gate and garage openers
Electronic door locks
Identity tokens
Burglar alarm systems
Compatible Encoders
All encoders and transponders configured for the fol-
lowing setting:
PWM modulation format (1/3-2/3)
T
E
in the range from 100
μ
s to 400
μ
s
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.
DESCRIPTION
The Microchip Technology Inc. HCS515 is a code hop-
ping decoder designed for secure Remote Keyless
Entry (RKE) systems. The HCS515 utilizes the pat-
ented code hopping system and high security learning
mechanisms to make this a canned solution when used
with the HCS encoders to implement a unidirectional
remote and access control systems. The HCS515 can
be used as a stand-alone decoder or in conjunction
with a microcontroller.
PACKAGE TYPE
BLOCK DIAGRAM
The manufacturer’s code, encoder decryption keys,
and synchronization information are stored in
encrypted form in internal EEPROM. The HCS515
uses the
S_DAT
and
S_CLK
inputs to communicate
with a host controller device.
The HCS515 operates over a wide voltage range of
4.5V – 5.5V. The decoder employs automatic bit rate
detection, which allows it to compensate for wide vari-
H
PDIP, SOIC
1
2
3
4
NC
NC
V
DD
S1
NC
NC
Vss
RF_IN
5
6
7
14
13
12
11
10
9
8
S0
MCLR
NC
S_CLK
S_DAT
NC
Reception Register
Internal
EEPROM
CONTROL
DECRYPTOR
RFIN
OSCILLATOR
S_DAT
S_CLK
S0
S1
MCLR
EE_DAT
EE_CLK
K
EE
L
OQ
Code Hopping Decoder
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