Atmel launches ATA577X for RKE applications

Atmel Corporation has announced the availability of the AVR-microcontroller-based RF transmitter family ATA577X for remote keyless entry (RKE) applications.

The devices are System-In-Package (SIP) or Multi Chip Module (MCM) solutions incorporating Atmel's AVR microcontroller ATtiny44V and the RF transmitter T5750/53/54.

This family covers all worldwide frequencies (ATA5773: 315 MHz, ATA5774: 433 MHz, and ATA5771: 868 to 928 MHz).

The QFN24 packages, measuring 5mm x 5mm, allow the creation of extremely small key fob designs at competitive costs.

The ATA577X family members are ideal for high-volume, uni-directional RF RKE car keys with a separate immobiliser transponder.

This product family especially fits RKE applications focusing on the latest RF and microcontroller technologies while retaining legacy transponder protocol compatibility.

Additionally, thanks to the stacked SIP technology, these applications will benefit by material cost savings of about 10 per cent and a board area saving of about 20 per cent, compared to conventional two-chip solutions.

The transmitter devices are produced using existing Atmel components in high-volume production.

Customers can reuse their existing T5754/53/50 or AVR designs, cutting down time-to-market.

Atmel's RF transmitter family will be updated in Q1/2009 with two additional car access devices.

The first device is targeted at the upcoming RKE combi keys; the second will serve the new Passive Entry Go (PEG) keys.

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