Microchip Announces Microcontrollers with KEELOQ Cryptographic Peripheral; Optimized for Battery-Powered Applications

Aug 09, 2004

New PIC(R) Microcontrollers Combine Data Transmission Security with Power Management

Microchip Technology Inc., a leading provider of microcontroller and analog semiconductors, today announced the first two PIC(R) 8-bit Flash microcontrollers with an integrated KEELOQ(R) cryptographic peripheral. The combination of this new KEELOQ peripheral, low-power consumption via nanoWatt Technology and reliable battery-powered operation provides a total solution for secure data transmission and authentication applications.

Designers of remotely controlled security systems and authentication products are encountering the need for an integrated solution that provides control of system power consumption and ensures reliable battery-powered operation. The new PIC12F635 and PIC16F636 microcontrollers meet these needs by providing engineers with the KEELOQ cryptographic peripheral, nanoWatt Technology power management modes, and reliable battery reset and detect features, including: Programmable Low Voltage Detect (PLVD), a Wake-up Reset (WUR) function, software-controlled Brownout Reset (BOR) and an Extended Watchdog Timer (EWDT).

"Microchip is building on its technology leadership in secure data products by combining the successful KEELOQ technology with our PIC microcontroller core," said Steve Drehobl, vice president of Microchip's Security, Microcontroller and Technology Division. "These two new microcontrollers provide a complete solution for remote authentication and security systems."

Applications for the PIC12F635 and PIC16F636 include: Remote Security Control (Remote Keyless Entry (RKE), Passive Keyless Entry (PKE), and remote door locks and gate openers); Authentication (property and identity); Security Systems (remote sensors and their intercommunication); and other General Purpose applications.

KEELOQ technology is based on a proprietary, non-linear encryption algorithm that creates a unique transmission on every use, rendering code capture and resend schemes useless. The new devices now feature this encryption algorithm as an integrated hardware peripheral to the PIC microcontroller core.

Additional features of these two new PIC microcontrollers include:

-- 8 MHz internal oscillator with software clock switching

-- Ultra Low Power Wakeup (ULPW)

-- Up to 3.5K bytes of Flash program memory, and up to 256 bytes of EEPROM data memory

-- Up to 128 bytes of RAM

-- Up to two analog comparators

Tools, Availability and Pricing

The PIC12F635 and PIC16F636 are supported by Microchip's world-class development tools, including: the MPLAB(R) Integrated Development Environment (IDE), MPLAB ICE 2000 in-circuit emulator, MPLAB PM3 universal device programmer, PICSTART(R) Plus low-cost development system, MPLAB ICD 2 in-circuit debugger/programmer and the PICkit(TM) 1 Flash starter kit.

The two new PIC microcontrollers are available today for sampling and volume production in the package options listed below. In 10,000-unit quantities, the PIC12F635 is $1.08 each and the PIC16F636 is $1.22 each. For additional information, contact any Microchip sales representative or authorized worldwide distributor, or visit Microchip's Web site at www.microchip.com/keeloq.

-- PIC12F635: 8-pin PDIP, SOIC and DFN-S

-- PIC16F636: 14-pin PDIP, SOIC and TSSOP

Source: Microchip Technology Inc

Explore further: Logjam isn't the only reason your computer might be more vulnerable to internet threats

Related Stories

Hair today, communication trigger tomorrow

Apr 11, 2015

Beauty technology? Don't be concerned if at first you missed the mark. "Beauty technology" does not refer to how ingredients are processed and packaged on shampoo and soap assembly lines. Katia Vega is a ...

Car hacking: The security threat facing our vehicles

Sep 17, 2014

The car of the future will be safer, smarter and offer greater high-tech gadgets, but be warned without improved security the risk of car hacking is real, according to a QUT road safety expert.

Recommended for you

'Deep web search' may help scientists

3 hours ago

When you do a simple Web search on a topic, the results that pop up aren't the whole story. The Internet contains a vast trove of information—sometimes called the "Deep Web"—that isn't indexed by search ...

Finger gestures will tell your smartwatch what to do

5 hours ago

Gesture control for smartwatches is the key mission for a startup called Deus Ex Technology. They have devised a module which can fit into a smartwatch band and behave as a gesture controller for your timepiece. ...

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.