HCS320 datasheet(1/32 Pages) MICROCHIP

部件名	HCS320

功能描述	KEELOQ Code Hopping Encoder

PDF	32 Pages

Scroll/Zoom	100%

制造商	MICROCHIP [Microchip Technology]

网页	http://www.microchip.com

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DS41097C-page 1

HCS320

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 function code, 2-bit status)

• Encryption keys are read protected

Operating

• 3.5V - 13.0V operation

• Shift key and three inputs

• 16 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

• 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 HCS320 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 HCS320 from Microchip Technology Inc. is a code

hopping encoder designed for secure Remote Keyless

Entry (RKE) systems. The HCS320 utilizes the code

hopping technology which incorporates high security, a

small package outline, and low cost, to make this

device a perfect solution for unidirectional remote key-

less entry systems and access control systems.

PACKAGE TYPES

HCS320 BLOCK DIAGRAM

The HCS320 combines a 32-bit hopping code gener-

ated by a nonlinear encryption algorithm, with a 28-bit

serial number and six status bits to create a 66-bit

transmission stream. The length of the transmission

eliminates the threat of code scanning and the code

hopping mechanism makes each transmission unique,

thus rendering code capture and resend (code grab-

bing) schemes useless.

1

2

3

4

8

7

6

5

S0

S1

S2

SHIFT

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

SHIFT S2

S1 S0

KEELOQ® Code Hopping Encoder

类似零件编号 - HCS320

制造商	部件名	数据表	功能描述
Microchip Technology	HCS320	395Kb / 28P	Memory Programming Specification 2004
	HCS320	740Kb / 38P	KEELOQ짰 Code Hopping Encoder Automatic code word completion 2011
	HCS320	740Kb / 38P	KEELOQ짰 Code Hopping Encoder Automatic code word completion 2011

More results

类似说明 - HCS320

制造商	部件名	数据表	功能描述
Microchip Technology	HCS200	150Kb / 16P	KEELOQ CODE HOPPING ENCODER 1996
	HCS301	168Kb / 20P	KEELOQ CODE HOPPING ENCODER 1996
	HCS360	211Kb / 24P	KEELOQ CODE HOPPING ENCODER 1996-1997
	HCS361	343Kb / 24P	KEELOQ CODE HOPPING ENCODER 1996 - 1997
	HCS500	356Kb / 24P	KEELOQ CODE HOPPING ENCODER 1997
	HCS201	383Kb / 28P	KEELOQ Code Hopping Encoder 2001
	HCS370	518Kb / 36P	KEELOQ Code Hopping Encoder 2002
	HCS365	463Kb / 34P	KEELOQ Code Hopping Encoder 2002
	HCS200SN	728Kb / 34P	KEELOQ Code Hopping Encoder 05/02/11
	HCS362-I	489Kb / 38P	KEELOQ Code Hopping Encoder 01/18/02

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