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U3280M_07 Datasheet, PDF (1/21 Pages) ATMEL Corporation – Transponder Interface for Microcontroller | |||
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Features
⢠Contactless Power Supply and Communication Interface
⢠Up to 10 kbaud Data Rate (R/O)
⢠Power Management for Contactless and Battery Power Supply
⢠Frequency Range 100 kHz to 150 kHz
⢠32 x 16-bit EEPROM
⢠Two-wire Serial Interface
⢠Shift Register Supported Bi-phase and Manchester Modulator Stage
⢠Reset I/O Line
⢠Field Clock Extractor
⢠Field and Gap Detection Output for Wake-up and Data Reception
⢠Field Modulator with Energy-saving Damping Stage
Applications
⢠Main Areas
â Access Control
â Telemetry
â Wireless Sensors
⢠Examples:
â Wireless Passive Access and Active Alarm Control for Protection of Valuables
â Contactless Position Sensors for Alignments of Machines
â Contactless Status Verification and/or Data Readout from Sensors
Transponder
Interface for
Microcontroller
U3280M
1. Description
The U3280M is a transponder interface for use in contactless ID systems, remote con-
trol systems, tag and sensor applications. It supplies the microcontroller with power
from an RF field via an LC-resonant circuit and it enables contactless bi-directional
data communication via this RF field. It includes power management that handles
switching between the magnetic field and a battery power supply. To store permanent
data like an identifier code and configuration data, the U3280M includes a 512-bit
EEPROM with a serial interface.
4688DâRFIDâ03/07
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