Microchip Technology HCS412
The HCS412 combines patented K EELOQ® code hopping tech nology with bi-di rectional transponder challenge-and-response security into a single chip solution for logical and physical access control. When used as a code hopping encoder, the HCS412 is ideally suited to keyless entry systems; vehi cle an d garage do or access i n particular.| Part No. | HCS412 |
|---|---|
| Datasheet | HCS412 Download |
| Manufacturer |  Microchip Technology |
| Description | Code Hopping Encoder and Transponder |
| Buy | Stock & Price |
FEATURES
Security●
●
●
●
● Programmable 64-bit encoder crypt key Two 64-bit IFF keys Keys are read protected 32-bit bi-directional challenge and response using one of two possible keys 69-bit transmission length
● 32-bit hopping code,
● 37-bit nonencrypted portion Programmable 28/32-bit serial number 60-bit, read protected seed for secure learning Two IFF encryption algorithms Delayed counter increment mechanism Asynchronous transponder communication Transmissions include button Queuing information 2.0V to 6.3V operation Three switch inputs: S2, S1, S0 – seven functions Battery-less bi-directional transponder capability Selectable baud rate and code word blanking Automatic code word completion Battery low detector PWM or Manchester data encoding Combined transmitter, transponder operation Anticollision of multiple transponders Passive proximity activation Device protected against reverse battery Intelligent damping for high Q LC-circuits 100 mVPP sensitive LC input Automotive remote e...
