HCS301 datasheet(1/38 Pages) MICROCHIP

部件名	HCS301

功能描述	Microchip Technology Inc. is a code hopping encoder designed for secure

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制造商	MICROCHIP [Microchip Technology]

网页	http://www.microchip.com

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DS21143C-page 1

HCS301

FEATURES

Security

• Programmable 28-bit serial number

• Programmable 64-bit encryption key

• Each transmission is unique

• 66-bit transmission code length

• 32-bit hopping code

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

4-bit button code, 2-bit status)

• Encryption keys are read protected

Operating

• 3.5V - 13.0V operation

• 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

Other

• Functionally identical to HCS300

• Easy-to-use programming interface

• On-chip EEPROM

• On-chip oscillator and timing components

• Button inputs have internal pull-down resistors

• Current limiting on LED output

• Low external component cost

Typical Applications

The HCS301 is ideal for Remote Keyless Entry (RKE)

applications. These applications include:

• Automotive RKE systems

• Automotive alarm systems

• Automotive immobilizers

• Gate and garage door openers

• Identity tokens

• Burglar alarm systems

DESCRIPTION

The HCS301 from Microchip Technology Inc. is a code

hopping encoder designed for secure Remote Keyless

Entry (RKE) systems. The HCS301 utilizes the

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.

PACKAGE TYPES

HCS301 BLOCK DIAGRAM

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.

1

2

3

4

8

7

6

5

S0

S1

S2

S3

VDD

LED

PWM

VSS

PDIP, SOIC

VSS

VDD

Oscillator

RESET circuit

LED driver

Controller

Power

latching

and

switching

Button input port

32-bit shift register

Encoder

EEPROM

PWM

LED

S3 S2

S1 S0

KEELOQ® Code Hopping Encoder

类似零件编号 - HCS301

制造商	部件名	数据表	功能描述
Microchip Technology	HCS301	168Kb / 20P	KEELOQ CODE HOPPING ENCODER 1996
	HCS301	395Kb / 28P	Memory Programming Specification 2004
	HCS301-/P	423Kb / 30P	KEELOQ CODE HOPPING ENCODER 2001
	HCS301-/SN	423Kb / 30P	KEELOQ CODE HOPPING ENCODER 2001
	HCS301-I/P	423Kb / 30P	KEELOQ CODE HOPPING ENCODER 2001

More results

类似说明 - HCS301

制造商	部件名	数据表	功能描述
Microchip Technology	HCS200	150Kb / 16P	KEELOQ CODE HOPPING ENCODER 1996
	HCS360	211Kb / 24P	KEELOQ CODE HOPPING ENCODER 1996-1997
	HCS361	343Kb / 24P	KEELOQ CODE HOPPING ENCODER 1996 - 1997
	HCS320	435Kb / 32P	KEELOQ Code Hopping Encoder 2001
	HCS370	518Kb / 36P	KEELOQ Code Hopping Encoder 2002
	HCS360	421Kb / 28P	KEELOQ짰 Code Hopping Encoder 2001
	HCS300	714Kb / 36P	Microchip Technology Inc. is a code hopping encoder designed 2011
	HCS200	728Kb / 34P	KEELOQ짰 Code Hopping Encoder 32-bit hopping code 2011
	HCS362-I	489Kb / 38P	KEELOQ Code Hopping Encoder 01/18/02
	RE46C141S16F	249Kb / 12P	A Subsidiary of Microchip Technology Inc. 2009

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