at88rf256-12 ATMEL Corporation, at88rf256-12 Datasheet

at88rf256-12

Manufacturer Part Number

at88rf256-12

Description

125 Khz Rfid Transponder Chip

Manufacturer

ATMEL Corporation

Datasheet

1.AT88RF256-12.pdf (12 pages)

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Features

•

Description

The AT88RF256 is an RFID (radio frequency identification) chip designed to work on

the industry-standard carrier frequency of 125 kHz. Applications include access

control, asset identification, industrial tagging, animal identification and other

applications where modest security capabilities are necessary. Security features

include locking of sensitive information to prevent tampering, optional passwords to

prevent unauthorized access and unique serial numbers locked into the chip by Atmel.

Block Diagram

Typical Operating Configuration

125 kHz RFID Chip for Cards and Tags

256 Read/Write EEPROM Bits, Divided into Eight Pages of 32 Bits

Password and Write Lock Protection

Programmable Send and Receive Protocols

Support for Multiple Tags (Anti-collision)

Integrated 150 pF Tuning Capacitor

ID Length Programmable from 4 - 19 Bytes

Optional Start and Stop Bits

Bit Reception Rate of 32 to 4096 Clocks/Bit

Bit Transmission Rate of 16 to 1024 Clocks/Bit

Unique Serial Number

-40° to +85°C Temperature Range

Typical Coil Inductance @125 kHz is ~10.1 mH

RF Power

Data

External Coil

AT88RF256-12

EEPROM

(continued)

125 kHz RFID

Transponder

Chip

AT88RF256-12

Preliminary

Rev. 1684A–07/00

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