MCS3122 Series

Catalog

ADVANCED KEELOQ ENCODER 14 TSSOP 4.4MM TUBE ROHS COMPLIANT: YES

Part	Type	Package / Case [custom]	Package / Case [custom]	Package / Case	Supplier Device Package	Mounting Type
Microchip Technology MCS3122-I/ST	Encoder	0.173 "	4.4 mm	14-TSSOP	14-TSSOP	Surface Mount

Catalog

Key Features

• * Programmable 32-bit serial number

• * Programmable 32-bit serial number for seed transmissions

• * AES-128 block cipher

• * Programmable 128-bit crypt key

• * 160/192-bit transmission code length

• * 32-bit unencrypted portion

• * 128-bit encrypted, code hopping portion

• * 32-bit authorization check (optional)

• * 2.0 to 3.7V operation

• * Three switch inputs

• * Seven functions available

• * One active-low LED drive

• * Configurable maximum code word

• * Configurable bit rate

• * Configurable modulation, supporting FSK and OOK

• * Configurable data modulation, supporting PWM and Manchester

• * Button inputs have internal pull-up resistor

• * 14pin 4.4mm TSSOP Package

Description

The MCS3122 is an advanced KeeLoq® encoder, designed for secure Remote Keyless Entry (RKE) and secure remote control systems. Typical applications include vehicles and home garage door openers. The MCS3122 delivers a cost effective, yet secure solution requiring very few external components. *KeeLoq® is a Microchip proprietary technology deployed in millions of security applications.* *KeeLoq® is licensed for exclusive use on Microchip products.*