HCS500 Datasheet_PDF文件下载_芯片资料查询

Encrypted storage of manufacturer鈥檚 code

Encrypted storage of encoder keys

Up to seven transmitters can be learned

K

EE

L

OQ

code hopping technology

Normal and secure learning mechanisms

HCS500

Code Hopping Decoder

PACKAGE TYPE

PDIP, SOIC

V

DD

EE_CLK

EE_DAT

MCLR

1

HCS500

2

3

4

8

7

6

5

V

SS

RFIN

S_CLK

S_DAT

Operating

鈥?3.0V鈥?.5V operation

鈥?Internal oscillator

鈥?Auto bit rate detection

BLOCK DIAGRAM

RFIN

67-bit Reception Register

DECRYPTOR

EE_DAT

External

EEPROM

CONTROL

EE_CLK

S_DAT

S_CLK

Other

鈥?/div>

Stand-alone decoder chipset

External EEPROM for transmitter storage

Synchronous serial interface

1 Kbit user EEPROM

8-pin DIP/SOIC package

Typical Applications

鈥?/div>

Automotive remote entry systems

Automotive alarm systems

Automotive immobilizers

Gate and garage openers

Electronic door locks

Identity tokens

Burglar alarm systems

OSCILLATOR

MCLR

The manufacturer鈥檚 code, encoder keys, and synchro-

nization information are stored in encrypted form in

external EEPROM. The HCS500 uses the S_DAT and

S_CLK inputs to communicate with a host controller

device.

The HCS500 operates over a wide voltage range of

3.0 volts to 5.5 volts. The decoder employs automatic

bit-rate detection, which allows it to compensate for

wide variations in transmitter data rate. The decoder

contains sophisticated error checking algorithms to

ensure only valid codes are accepted.

Compatible Encoders

鈥?HCS200, HCS300, HCS301, HCS360,

HCS410 (PWM Mode)

DESCRIPTION

The Microchip Technology Inc. HCS500 is a code hop-

ping decoder designed for secure Remote Keyless

Entry (RKE) systems. The HCS500 utilizes the pat-

ented K

EE

L

OQ

code hopping system and high security

learning mechanisms to make this a canned solution

when used with the HCS encoders to implement a uni-

directional remote and access control systems. The

HCS500 can be used as a stand-alone decoder or in

conjunction with a microcontroller.

K

EE

L

OQ

is a registered trademark of Microchip Technology Inc.

*Code hopping patents issued in Europe, U.S.A; and R.S.鈥擴S:5,517,187; Europe: 0459781

漏

1997 Microchip Technology Inc.

Preliminary

DS40153B-page 1

型号

版本

描述

厂商

下载
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英文版

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Interface IC

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Radiation Hardened Octal Transparent Latch, Three-State

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HCS573D

英文版

Radiation Hardened Octal Transparent Latch, Three-State

INTERSIL [...

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HCS573K

英文版

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HCS573K
HCS573K

英文版

Radiation Hardened Octal Transparent Latch, Three-State

INTERSIL [...

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REMOTE-CONTROL RECEIVER/DECODER|CMOS|DIP|8PIN

ETC

HCS500/P
HCS500-P

英文版

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HCS500-P

英文版

KEELOQ CODE HOPPING ENCODER

MICROCHIP ...

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HCS512/P

英文版

Remote-Control Receiver/Decoder

ETC

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HCS512-P

英文版

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HCS512-P

英文版

KEELOQ CODE HOPPING DECODER

MICROCHIP ...

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HCS515/P

英文版

REMOTE-CONTROL RECEIVER/DECODER|CMOS|DIP|14PIN

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HCS515-P

英文版

KEELOQ CODE HOPPING DECODER

HCS515-P
HCS515-P

英文版

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MICROCHIP ...

HCS515-P
HCS573MS

英文版

Radiation Hardened Octal Transparent Latch, Three-State

HCS573MS

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