HCS412SN

更新时间： 2024-09-25 23:16:39

品牌	Logo	应用领域
美国微芯 - MICROCHIP		编码器
页数	文件大小	规格书
44页	675K
描述
KEELOQ Code Hopping Encoder and Transponder

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中文翻译

获取价格

数据手册

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HCS412SN 数据手册

HCS412

KEELOQ Code Hopping Encoder and Transponder

FEATURES

PACKAGE TYPES

PDIP, SOIC

Security

VDD

• Programmable 64-bit encoder crypt key

• Two 64-bit IFF keys

LED

DATA

GND

• Keys are read protected

S2/RFEN/LC1

LC0

• 32-bit bi-directional challenge and response using

one of two possible keys

• 69-bit transmission length

• 32-bit hopping code,

BLOCK DIAGRAM

• 37-bit nonencrypted portion

• Programmable 28/32-bit serial number

• 60-bit, read protected seed for secure learning

• Two IFF encryption algorithms

Oscillator

Power

Control

Configuration Register

Address

• Delayed counter increment mechanism

• Asynchronous transponder communication

EEPROM

Debounce

Decoding

Wake-up

Logic

Control

and

• Transmissions include button Queuing

information

Queuer

Operating

LED

Control

• 2.0V to 6.3V operation

• Three switch inputs: S2, S1, S0 – seven functions

• Battery-less bi-directional transponder capability

• Selectable baud rate and code word blanking

• Automatic code word completion

PPM

Detector

LC0

RFEN/S2/LC1

DATA

PPM

Manch.

Encoder

• Battery low detector

DATA

Driver

• PWM or Manchester data encoding

• Combined transmitter, transponder operation

• Anticollision of multiple transponders

• Passive proximity activation

Other

• Simple programming interface

• Device protected against reverse battery

• Intelligent damping for high Q LC-circuits

• 100 mVPP sensitive LC input

• On-chip tunable RC oscillator, ± 10%

• On-chip EEPROM

• 64-bit user EEPROM in Transponder mode

• Battery-low LED indication

Typical Applications

• Serialized Quick Turn Programming (SQTP^SM

)

• Automotive remote entry systems

• Automotive alarm systems

• Automotive immobilizers

• 8-pin PDIP/SOIC

• RF Enable output

• ASK and FSK PLL interface option

• Built in LC input amplifier

• Gate and garage openers

• Electronic door locks (Home/Office/Hotel)

• Burglar alarm systems

• Proximity access control

2002 Microchip Technology Inc.

Preliminary

DS41099C-page 1

12 3 4 5 6 7...44

中文翻译

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