U3280M-NFBG3Y-18

U3280M-NFBG3Y-18 Datasheet


Atmel U3280M

Part Datasheet
U3280M-NFBG3Y-18 U3280M-NFBG3Y-18 U3280M-NFBG3Y-18 (pdf)
Related Parts Information
U3280M-NFBY-18 U3280M-NFBY-18 U3280M-NFBY-18
PDF Datasheet Preview
Atmel U3280M

Transponder Interface for Microcontroller DATASHEET
● Contactless power supply and communication interface ● Up to 10Kbaud data rate R/O ● Power management for contactless and battery power supply ● Frequency range 100kHz to 150kHz ● 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
● Main areas ● Access control ● Telemetry ● Wireless sensors
● Examples ● Wireless passive access and active alarm control for protection of valuables ● Contactless position sensors for alignments of machines ● Contactless status verification and/or data readout from sensors

The U3280M is a transponder interface for use in contactless ID systems, remote control 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 Atmel U3280M includes a 512-bit EEPROM with a serial interface.

Figure Block Diagram

Energy

Coil 1

U3280M Transponder Interface

VField Regulator

Power Management

Damping Stage

VBATT

NRST VDD

Sensors, Keys, Displays, Actuators

Data

Coil 2

Rectifier

Field/Gap Detect Clock

Extractor
512-bit EEPROM Memory

Serial Interface

Bi-phase Modulator

SDA SCL

Low-power Microcontroller

FC NGAP

Transmit Data Receive Data/Field Detected

Field Data

Atmel U3280M [DATASHEET]

Pin Configuration

Figure Pinning

VBatt

NRST
16 Coil 2 15 Coil 1 14 NC 13 NC 12 NC 11 NC 10 NGAP
9 MOD

Table Pin 1
3 4 5 6 7 8 9 10 11 12 13 14 15 16

Pin Description

Symbol Function

VBatt Power supply voltage input to connect a battery
Ordering Information

Extended Type Number U3280M-NFBY-18 U3280M-NFBG3Y-18

Package SSO16

Package Information
5 max.

Remarks Tube, Pb-free Taped and reeled, Pb-free
max.
nom. 7 x = nom.

Package acc. JEDEC MO 137 AB
max.
technical drawings according to DIN specifications

Dimensions in mm

Package Drawing Contact:

TITLE Package SSO16

Atmel U3280M [DATASHEET] 17

History
4688E-RFID-05/13
• Section 10 “Ordering Information” on page 17 updated
• Put datasheet in a new template
4688D-RFID-03/07
• Pb-free logo on page 1 deleted
• Section “EEPROM Operating Modes” on page 10 changed
• Put datasheet in a new template
4688C-RFID-09/05
• Pb-free logo on page 1 added
• Table “Ordering Information” on page 19 changed
• Page 10 Data Transfer Sequence Text changed
4688B-RFID-12/04
• Page 13 Antenna Text changed
• Page 16 Ordering Information table changed

Atmel U3280M [DATASHEET] 18

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Datasheet ID: U3280M-NFBG3Y-18 519482