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HCS410T-I/ST, HCS412, HCS412/P

Table of contents:
Info of HCS410T-I/ST
Info of HCS412
Info of HCS412/P

HCS410T-I/ST, HCS412, HCS412/P Selling Leads, Datasheet

MFG:Microchip Technology Category:Integrated Circuits (ICs) Package Cooled:TSSOP D/C:08+

HCS410T-I/ST, HCS412, HCS412/P Datasheet download

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Part Number: HCS410T-I/ST

Category: Integrated Circuits (ICs)

MFG: Microchip Technology

Package Cooled: TSSOP

D/C: 08+

Description: IC CODE HOP ENCOD/TRNSPND 8TSSOP

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HCS410T-I/ST Parameters

Technical/Catalog Information	HCS410T-I/ST
Vendor	Microchip Technology
Category	Integrated Circuits (ICs)
Type	Code Hopping Encoder and Transponder
Applications	Remote Secure Access, Keyless Entry
Package / Case	8-TSSOP
Packaging	Tape & Reel (TR)
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	HCS410T I ST HCS410TIST

HCS412 General Description

The HCS412 combines patented KEELOQ code hopping technology with bi-directional 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; vehicle and garage door access in particular. The same HCS412 can also be used as a secure bi-directional transponder for contactless token verification. These capabilities make the HCS412 ideal for combined secure access control and identification applications, dramatically reducing the cost of hybrid transmitter/transponder solutions.

HCS412 Maximum Ratings

Symbol	Item	Rating	Units
V_DD	Supply voltage	-0.3 to 6.6	V
V_IN^*	Input voltage	-0.3 to VDD + 0.3	V
V_OUT	Output voltage	-0.3 to VDD + 0.3	V
I_OUT	Max output current	50	mA
T_STG	Storage temperature	-55 to +125	C (Note)
T_LSOL	Lead soldering temp	300	C (Note)
V_ESD	ESD rating (Human Body Model)	4000	V

Note: Stresses above those listed under "ABSOLUTE MAXIMUM RATINGS" may cause permanent damage to the device.
* If a battery is inserted in reverse, the protection circuitry switches on, protecting the device and draining the battery.

HCS412 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
Operating
• 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

HCS412 Typical Application

• Automotive remote entry systems
• Automotive alarm systems
• Automotive immobilizers
• Gate and garage openers
• Electronic door locks (Home/Office/Hotel)
• Burglar alarm systems
• Proximity access control

HCS412 Connection Diagram

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