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HCS300, HCS300/P, HCS300/SM

Table of contents:
Info of HCS300
Info of HCS300/P
Info of HCS300/SM

HCS300, HCS300/P, HCS300/SM Selling Leads, Datasheet

MFG:Microchip Technology Category:Integrated Circuits (ICs) Package Cooled:SOP8 D/C:2005

HCS300, HCS300/P, HCS300/SM Datasheet download

Five Points

Part Number: HCS300/P

Category: Integrated Circuits (ICs)

MFG: Microchip Technology

Package Cooled: SOP8

D/C: 2005

Description: IC CODE HOPP ENCODER 15FUNC 8DIP

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HCS300 General Description

The HCS300 is a code hopping encoder designed for secure Remote Keyless Entry (RKE) systems. The HCS300 utilizes Microchip's patented KEELOQ? hopping technology, which incorporates high security, a small package outline and low cost to make this device a perfect solution for unidirectional remote keyless entry systems and access control systems. The HCS300 combines a 32-bit hopping code generated by a non-linear encryption algorithm, with a 28-bit serial number and 6 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 re-send (code grabbing) schemes useless. The encryption key, serial number, and configuration data are stored in EEPROM, which is not accessible via any external connection. This makes the HCS300 a very secure unit. The HCS300 provides an easy-to-use serial interface for programming the necessary security keys, system parameters, and configuration data. The encryption keys and code combinations are programmable but read-protected. The HCS300 operates over a wide voltage range of 2.0V to 6.3V and has four button inputs in an 8-pin configuration. This allows the system designer the freedom to utilize up to 15 functions. Additional features include an LED Drive, Overflow bits, Time-out, and Battery low indicator. The HCS301 operates in a voltage range of 2.0V to 6.3V.

HCS300 Maximum Ratings

Parameter Name	Value
Protocols	1
Transmission Code Length Bits	66
Other Features	LED Drive, Overflow bits, Time-out, Battery low indicator
Seed Length	32
Code Hoppings Bits	32
Operating Voltage (V)	2.0 to 6.3
Tunable OSC	No
Function Codes	15
CRC	No

HCS300 Features

• 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
• 2.0-6.3V operation
• Four button inputs
• No additional circuitry required
• 15 functions available
• Selectable baud rate
• Automatic code word completion
• Battery low signal transmitted to receiver
• Non-volatile synchronization data
• Easy to use programming interface
• On-chip EEPROM
• On-chip oscillator and timing components
• Button inputs have internal pulldown resistors
• Current limiting on LED output
• Minimum component count
• Synchronous transmission mode
• Automotive RKE systems
• Automotive alarm systems
• Automotive immobilizers
• Gate and garage door openers
• Identity tokens
• Burglar alarm systems

HCS300 Typical Application

• Automotive RKE systems
• Automotive alarm systems
• Automotive immobilizers
• Gate and garage door openers
• Identity tokens
• Burglar alarm systems

HCS300 Connection Diagram

HCS300/P Parameters

Technical/Catalog Information	HCS300/P
Vendor	Microchip Technology
Category	Integrated Circuits (ICs)
Type	Code Hopping Encoder
Applications	Remote Secure Access, Keyless Entry
Package / Case	8-DIP (300 mil)
Packaging	Tube
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	HCS300 P HCS300P

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