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HCS412TSN Datasheet

  • HCS412TSN

  • KEELOQ Code Hopping Encoder and Transponder

  • 44頁

  • MICROCHIP   MICROCHIP

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HCS412
K
EE
L
OQ
廬
Code Hopping Encoder and Transponder
FEATURES
Security
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Programmable 64-bit encoder crypt key
Two 64-bit IFF keys
Keys are read protected
32-bit bi-directional challenge and response using
one of two possible keys
69-bit transmission length
鈥?32-bit hopping code,
鈥?37-bit nonencrypted portion
Programmable 28/32-bit serial number
60-bit, read protected seed for secure learning
Two IFF encryption algorithms
Delayed counter increment mechanism
Asynchronous transponder communication
Transmissions include button Queuing
information
PACKAGE TYPES
PDIP, SOIC
S0
S1
S2/RFEN/LC1
LC0
1
8
V
DD
LED
DATA
GND
HCS412
2
3
4
7
6
5
BLOCK DIAGRAM
V
DD
Power
Control
Oscillator
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Configuration Register
S0
S1
Debounce
Control
and
Queuer
Address EEPROM
Decoding
Wake-up
Logic
LED
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2.0V to 6.3V operation
Three switch inputs: S2, S1, S0 鈥?seven functions
Battery-less bi-directional transponder capability
Selectable baud rate and code word blanking
Automatic code word completion
Battery low detector
PWM or Manchester data encoding
Combined transmitter, transponder operation
Anticollision of multiple transponders
Passive proximity activation
Device protected against reverse battery
Intelligent damping for high Q LC-circuits
100 mV
PP
sensitive LC input
Transponder
Circuitry
LC0
RFEN/S2/LC1
PPM
Detector
DATA
PPM
Manch.
Encoder
DATA
DATA
Driver
Other
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Simple programming interface
On-chip tunable RC oscillator, 鹵 10%
On-chip EEPROM
64-bit user EEPROM in Transponder mode
Battery-low LED indication
Serialized Quick Turn Programming (SQTP
SM
)
8-pin PDIP/SOIC
RF Enable output
ASK and FSK PLL interface option
Built in LC input amplifier
Typical Applications
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Automotive remote entry systems
Automotive alarm systems
Automotive immobilizers
Gate and garage openers
Electronic door locks (Home/Office/Hotel)
Burglar alarm systems
Proximity access control
漏
2002 Microchip Technology Inc.
Preliminary
DS41099C-page 1
Register
LED
Control
Control Logic
and Counters
Operating
Encryption/Increment
Logic

HCS412TSN相關(guān)型號PDF文件下載

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  • 英文版
    KEELOQ® Code Hopping Encoder and Transponder
    Microchip
  • 英文版
    KEELOQ CODE HOPPING ENCODER AND TRANSPONDER
    MICROCHIP ...
  • 英文版
    KEELOQ Code Hopping Encoder and Transponder
    MICROCHIP
  • 英文版
    KEELOQ Code Hopping Encoder and Transponder
    MICROCHIP ...
  • 英文版
    Code Hopping Encoder and Transponder
    MICROCHIP
  • 英文版
    Code Hopping Encoder and Transponder
    MICROCHIP ...
  • 英文版
    KEELOQ Code Hopping Encoder and Transponder
    MICROCHIP
  • 英文版
    KEELOQ Code Hopping Encoder and Transponder
    MICROCHIP ...
  • 英文版
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    MICROCHIP
  • 英文版
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  • 英文版
    KEELOQ Code Hopping Encoder and Transponder
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  • 英文版
    KEELOQ Code Hopping Encoder and Transponder
    MICROCHIP
  • 英文版
    KEELOQ Code Hopping Encoder and Transponder
    MICROCHIP ...
  • 英文版
    KEELOQ Code Hopping Encoder and Transponder
    MICROCHIP

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