HCS473_13 datasheet(1/68 Pages) MICROCHIP

部件名	HCS473

功能描述	KEELOQ짰 3-Axis Transcoder

PDF	68 Pages

Scroll/Zoom	100%

制造商	MICROCHIP [Microchip Technology]

网页	http://www.microchip.com

标志

1 / 68 page

 2000-2013 Microchip Technology Inc.

Preliminary

DS40035D-page 1

HCS473

FEATURES

Encoder Security

• Read protected 64-bit encoder key

• 69-bit transmission length

• 60-bit, read protected seed for secure learning

• Programmable 32-bit serial number

• Non-volatile 16/20-bit synchronization counter

Encoder Operation

• 2.05V to 5.5V operation

• Four switch inputs – up to 15 functions codes

• PWM or Manchester modulation

• Selectable Baud Rate (416 - 5,000 bps)

• Transmissions include button queuing information

• PLL interface

Transponder Security

• 2 read protected 64-bit Challenge/Response keys

• Two IFF encryption algorithms

• 16/32-bit Challenge/Response

• Separate Vehicle ID and Token ID

• 2 vehicles supported

• CRC on all communication

Transponder Operation

• Three sensitive transponder inputs

• Bi-directional transponder communication

• Transponder in/RF out operation

• Anticollision of multiple transponders

• Intelligent damping for high Q-factor LC-circuits

• Low battery operation

• Passive proximity activation

• 64-bit secure user EEPROM

• Fast reaction time

Peripherals

• Low Voltage Detector

• On-board RC oscillator with

10% variation

Package Types

Block Diagram

Typical Applications

• Passive entry systems

• 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

• Passive proximity authentication

8

14

1

2

3

4

13

12

11

S0

S1

S2

S3/RFEN

VDD

LED

DATA

VSS

PDIP, SOIC

VDDT

LCX

LCY

VSST

LCCOM

LCZ

5

6

7

10

9

Wake-up

Control

Low

Voltage

Detector

3 Input Transponder

Circuitry

S0

S1

Internal

Oscillator

EEPROM

RESET and

Power

Control

VDD

VSS

Control

Logic

LED

DATA

S2

S3/

RFEN

LED

Driver

Data

Output

LCX

LCY

LCZ

VDDT

LCCOM

VSST

KEELOQ® 3-Axis Transcoder

类似零件编号 - HCS473_13

制造商	部件名	数据表	功能描述
Microchip Technology	HCS473-PQTP	1Mb / 68P	Code Hopping Encoder and Transponder 2002
	HCS473-PROM	1Mb / 68P	Code Hopping Encoder and Transponder 2002
	HCS473-PSQTP	1Mb / 68P	Code Hopping Encoder and Transponder 2002
	HCS473-SLQTP	1Mb / 68P	Code Hopping Encoder and Transponder 2002
	HCS473-SLROM	1Mb / 68P	Code Hopping Encoder and Transponder 2002

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