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Transponder tips low frequency for RFID apps

Posted: 04 Jul 2012 ?? ?Print Version ?Bookmark and Share

Keywords:RFID transponder? ATA5577M1330C-PP?

Atmel Corp. has rolled out the ATA5577M1330C-PP low-frequency (LF) RFID transponder, targeting applications in building access control systems, industrial automation, consumer and industrial segments. The device is a standalone, fully functional tag that includes an antenna coil trimmed to an operating frequency of 125kHz.

The transponder claims flexibility for universal use, providing a range of data rates from RF/2 to RF/128 (64kBit/s to 1kBit/s at 125kHz), modulation and a variety of coding schemes including ASK, FSK, PSK, Manchester, Bi-phase and NRZ. The Atmel-patented digital Analog Frontend Register (AFE) enables the chip's analog front end circuitry to adapt to the transponder and reader system for maximum performance. It is said to be the only device on the market where the analog behavior can be tuned in a closed and sealed transponder for increased performance. This ability helps RFID design and production.

The transponder is available in a standard Pb-free zero-pin brick package, which is also used by other Atmel IDIC family members. The package molding makes the transponder usable in rugged environments that are challenging for competing RFID devices, including underwater, on metal or in dirt.

The on-chip memory contains an Atmel-pre-programmed unique ID (UID) in two additional memory blocks. These locked blocks guarantee a unique, worldwide traceable Atmel number consisting of the Atmel lot number, wafer lot and sequential die number. This makes the device suited for use in applications that only require a low, basic level of security, while at the same time ensuring compatibility with all kinds of existing RFID systems. The ISO11784/ ISO11785 code structure, along with the de-facto-standard-unique format, can be configured according to the requirements of specific 125kHz applications.

Samples of the Atmel ATA5577M1330C-PP in 12mm x 5.9mm x 3mm brick packages are available now. Atmel provides evaluation kits (ATA2270-EK1, ATA5505-EK1) with the sample transponders. These kits are based on the company's AVR microcontrollers and provide Windows PC software, C source code for programming the AVR device, and PCB Gerber data for the reader board. Pricing of the devices starts at $1.93 for orders of 4,000-piece quantities.

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