HCS201-I/SN Datasheet PDF - Microchip

●DESCRIPTION

●The HCS201 from Microchip Technology Inc. is a code hopping encoder designed for secure Remote Keyless Entry (RKE) systems. The HCS201 utilizes the KEELOQ® code hopping technology, incorporating high security, a small package outline and low cost. The HCS201 is a perfect solution for unidirectional remote keyless entry systems and access control systems.

●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 button code, 2-bit status)

●• Encryption keys are read protected

●Operating

●• 3.5V-13V operation (2.0V min. using the Step up feature)

●• Three button inputs

●• 7 functions available

●• Selectable baud rate

●• Automatic code word completion

●• Battery low signal transmitted to receiver

●• Non-volatile synchronization data

●Other

●• Simple programming interface

●• On-chip EEPROM

●• On-chip oscillator and timing components

●• Button inputs have internal pull-down resistors

●• Minimum component count

●• Synchronous Transmission mode

●• Built-in step up regulator