HCS473/SL Microchip Technology, HCS473/SL Datasheet

HCS473/SL

Manufacturer Part Number

HCS473/SL

Description

IC KEELOQ 3AXIS TRANSCODR 14SOIC

Manufacturer

Microchip Technology

Series

KEELOQ®r

Type

Code Hopping Encoder and Transponderr

Datasheets

1.HCS473P.pdf (68 pages)

2.HCS473P.pdf (4 pages)

Specifications of HCS473/SL

Applications

Access Control Systems

Mounting Type

Surface Mount

Package / Case

14-SOIC (3.9mm Width), 14-SOL

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

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The HCS473 Rev. B parts you have received conform

functionally to the Device Data Sheet (DS40035B),

except for the anomalies described below.

None.

All the problems listed here will be addressed in future

revisions of the HCS473 silicon.

2002 Microchip Technology Inc.

HCS473 Rev. B Data Sheet Errata

Clarifications/Corrections to the Data Sheet:

In the Device Data Sheet (DS40035B), the following

clarifications and corrections should be noted.

1. Features: Encoder Operation

2. Features: Transcoder Operation

• Regardless if QUEUE is enabled, the 2-bit

• The Long Preamble Duty Cycle option

• The four available guard time (T

• Limited SEED and Production SEED modes

• The Transcoder Select Acknowledge is now

• LF data responses begin with a 1 LF

• Intelligent damping pulses, when enabled,

• Clamping, for LF responses, is now a low

QUE field will always be transmitted giving a

fixed 69-bit code word. The QUE value indi-

cates button queue information if enabled

with the Queue counter enable (QUEN) con-

figuration bit, otherwise is fixed at 00

(LPRD) formerly selected between 33% or

50% duty cycle for long preambles only. It

now is the Preamble Duty Cycle (PRD) and

sets the preamble duty cycle for every pre-

amble, regardless of the duration.

are

• 3 RF

• 6.4 ms

• 51.2 ms

• 102.4 ms

permanently disable seed transmission capa-

bility when the synchronization counter LSB

increments from 7F(h) to 80(h).

two pulses.

START pulse immediately followed by 32 bits

of data, Least Significant bit first.

are applied for 5 s, repeating every 44 s.

resistance connection across the antenna

inputs.

HCS473

DS80141A-page 1

) options

low

Related parts for HCS473/SL

HCS473/SL Summary of contents

Page 1

... Device Data Sheet (DS40035B), except for the anomalies described below. None. All the problems listed here will be addressed in future revisions of the HCS473 silicon. 2002 Microchip Technology Inc. HCS473 Clarifications/Corrections to the Data Sheet: In the Device Data Sheet (DS40035B), the following clarifications and corrections should be noted. ...

Page 2

... HCS473 NOTES: DS80141A-page 2 2002 Microchip Technology Inc. ...

Page 3

... Serialized Quick Turn Programming (SQTP service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. © 2002, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper. Microchip received QS-9000 quality system ...

Page 4

... Korea Microchip Technology Korea 168-1, Youngbo Bldg. 3 Floor Samsung-Dong, Kangnam-Ku Seoul, Korea 135-882 Tel: 82-2-554-7200 Fax: 82-2-558-5934 Singapore Microchip Technology Singapore Pte Ltd. 200 Middle Road #07-02 Prime Centre Singapore, 188980 Tel: 65-6334-8870 Fax: 65-6334-8850 Taiwan Microchip Technology (Barbados) Inc., Taiwan Branch 11F-3, No ...

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