• Contactless Interface
– Reads and Writes Passive RFID Tags in the Unlicensed 13.56 MHz Band
– Employs ISO/IEC14443 Type A Modulation Schemes
– Autonomous Operation Capability (can scan and read tags without host
intervention – i.e. only passes data following successful read/write operation)
– Compatible with NFC Initiation Only Device – User Has Control Over Initiation of all
RFID Based Services and Features
– Read/write Operation Between 1 cm and 10 cm Read Range, Depending on
Reader/Tag Antenna Coil Sizes and Orientation Relative to the Reader
– Collision Detection as Standard
– Transparent Modes for Software Controlled Modulation Supports Maximum
Flexibility and Future Protocols
– Fast Data Communication Rate of 106 kbit/s
– Suitable for Operation with a Wide Variety of Antenna Coil Sizes and Form Factors
– Four Software Adjustable Carrier Field Drive Levels
• Controller and Software
– On-board Powerful Atmel AVR® RISC microcontroler, programmed with
Innovision® proprietary software.
– Built in Self Test and Diagnostic Modes
– Internal 8 MHz RC Oscillator for Micro or External Crystal Operation
• Host Interface
– 3-wire SPI Interface as Standard
– Full Software Control via SPI bus at 115 Kbaud as Standard Interface
• Power Supply
– Ultra Low Current Operation and Stand-by Sleep Mode Typically < 1 µA
– Ultra Low Voltage Operation: 2.7V - 3.3V
• Additional features
– Packages: LBGA36
– LBGA Requires Only an External Crystal, 10 Passives and the Reader Antenna Coil
– Operating temperature range: -30°C to +80°C
AT90RF135602 is an ultra small footprint low-cost Radio Frequency Identification
(RFID) reader developed with Innovision Research & Technology plc to address
multi-protocol 13.56 MHz RFID applications.
It is optimised for use with the established ISO/IEC14443 type A standard and is avail-
able in Low-profile Ball Grid Array (LBGA).
The LBGA incorporates a custom transceiver front-end along with a protocol & com-
munications controller. It requires only an external crystal and minimal external
passive components to interface to the reader antenna.
Protocols are software defined and hence configurable.