Datasheet > HCS301_11

HCS301_11

更新时间： 2024-11-09 11:03:51

品牌	Logo	应用领域
美国微芯 - MICROCHIP		编码器
页数	文件大小	规格书
38页	710K
描述
Microchip Technology Inc. is a code hopping encoder designed for secure

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中文翻译

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数据手册

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HCS301_11 数据手册

HCS301

KEELOQ Code Hopping Encoder

FEATURES

Security

DESCRIPTION

The HCS301 from Microchip Technology Inc. is a code

hopping encoder designed for secure Remote Keyless

Entry (RKE) systems. The HCS301 utilizes the

• Programmable 28-bit serial number

• Programmable 64-bit encryption key

• Each transmission is unique

• 66-bit transmission code length

• 32-bit hopping code

KEELOQ code hopping technology, which incorpo-

rates high security, a small package outline and low

cost, to make this device a perfect solution for unidirec-

tional remote keyless entry systems and access control

systems.

• 34-bit fixed code (28-bit serial number,

4-bit button code, 2-bit status)

PACKAGE TYPES

• Encryption keys are read protected

PDIP, SOIC

Operating

VDD

• 3.5V - 13.0V operation

LED

PWM

VSS

• Four button inputs

• No additional circuitry required

• 15 functions available

• Selectable baud rate

• Automatic code word completion

• Battery low signal transmitted to receiver

• Battery low indication on LED

• Non-volatile synchronization data

HCS301 BLOCK DIAGRAM

Oscillator

Power

latching

and

Controller

RESET circuit

switching

Other

LED

LED driver

• Functionally identical to HCS300

• Easy-to-use programming interface

• On-chip EEPROM

EEPROM

Encoder

• On-chip oscillator and timing components

• Button inputs have internal pull-down resistors

• Current limiting on LED output

• Low external component cost

PWM

32-bit shift register

Button input port

VSS

VDD

Typical Applications

The HCS301 is ideal for Remote Keyless Entry (RKE)

applications. These applications include:

S1 S0

• Automotive RKE systems

• Automotive alarm systems

• Automotive immobilizers

• Gate and garage door openers

• Identity tokens

The HCS301 combines a 32-bit hopping code,

generated by a nonlinear encryption algorithm, with a

28-bit serial number and 6 information bits to create a

66-bit code word. The code word length eliminates the

threat of code scanning and the code hopping mecha-

nism makes each transmission unique, thus rendering

code capture and resend schemes useless.

• Burglar alarm systems

DS21143C-page 1

12 3 4 5 6 7...38

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与HCS301_11相关器件

型号	品牌	获取价格	描述	数据表
HCS301-I/P	MICROCHIP	获取价格	KEELOQ CODE HOPPING ENCODER
HCS301-I/PVAO	MICROCHIP	获取价格	TELECOM, DATA ENCRYPTION CIRCUIT, PDIP8, 0.300 INCH, PLASTIC, DIP-8
HCS301-I/SN	MICROCHIP	获取价格	KEELOQ CODE HOPPING ENCODER
HCS301-I/SN012	MICROCHIP	获取价格	TELECOM, DATA ENCRYPTION CIRCUIT, PDSO8, 0.150 INCH, PLASTIC, SOIC-8
HCS301-I/SNVAO	MICROCHIP	获取价格	TELECOM, DATA ENCRYPTION CIRCUIT, PDSO8, 0.150 INCH, PLASTIC, SOIC-8
HCS301-IP	MICROCHIP	获取价格	KEELOQ CODE HOPPING ENCODER
HCS301-ISN	MICROCHIP	获取价格	KEELOQ CODE HOPPING ENCODER
HCS301-P	MICROCHIP	获取价格	KEELOQ CODE HOPPING ENCODER
HCS301-SN	MICROCHIP	获取价格	KEELOQ CODE HOPPING ENCODER
HCS301T-/P	MICROCHIP	获取价格	KEELOQ CODE HOPPING ENCODER

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