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HCS201

Status: In Production

Features:

  • Entry level, Fixed code support, Batter low indicator, step-up voltage operation
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

The HCS201 is a code hopping encoder designed for secure Remote Keyless Entry (RKE) systems. The HCS201 utilizes Microchip’s patented KEELOQ® code 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 HCS201 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 steam. 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 HCS201 a very secure unit. The HCS201 provides an easy-to-use serial interface for programming the necessary security keys, system parameters, and configuration data. The encryption key and code combinations are programmable but read-protected. The HCS201 operates over a wide voltage range of 3.5V to 13V and has three button inputs in an 8-pin configuration, which allows the system designer the freedom to utilize up to 7 functions.

Additional Features
Entry level, Fixed code support, Batter low indicator, step-up voltage operation
Parametrics
Name
Value
Device Description
KEELOQ® Encoder Devices
Operating Voltage (V)
3.5 to 13.0
Tunable OSC
Yes
Function Codes
7
Transmission Code Length Bits
66
Code Hoppings Bits
32
Features
Entry level, Fixed code support, Battery low indicator, step-up voltage operation
Encryption Key Length
64
Seed Length
32

Documents

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Data Sheet

05/31/2011
675KB

Errata

05/17/2004
75KB

Programming Specification

Development Environment

  • Programmers
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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (grams)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
HCS201/SN
0.078000
0.250000
8
SOIC
.150In(3.90mm)
Matte Tin
e3
HCS201-I/SN
0.078000
0.250000
8
SOIC
.150In(3.90mm)
Matte Tin
e3
HCS201T-I/SN
0.078000
0.230303
8
SOIC
.150In(3.90mm)
Matte Tin
e3
HCS201T/SN
0.078000
0.230303
8
SOIC
.150In(3.90mm)
Matte Tin
e3
HCS201/P
0.486700
0.900000
8
PDIP
.300in
Matte Tin
e3
HCS201-I/P
0.486700
0.900000
8
PDIP
.300in
Matte Tin
e3
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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