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MCRF450

13.56 MHz Read/Write Passive RFID Device

Microchip Technology 

MCRF450/451/452/455

13.56 MHz Read/Write Passive RFID Device

Features

• Contactless read and write with anti-collision

algorithm

• 1024 bits (32 blocks) of total memory

• 928 bits (29 blocks) of user programmable

memory

• Unique 32-bit tag ID (factory programmed)

• 32 bits for data and 16 bits for CRC per block

• Block write protection

• 70 Kbit/s read data rate (Manchester format)

• Special bit (Fast Read) for fast identification and

anti-counterfeit applications (EAS)

• 1-of-16 PPM encoding for writing data

• Interrogator-Talks-First (ITF) or Tag-Talks-First

(TTF) operation

• Long range for reading and writing

• High-speed anti-collision algorithm for reading

and writing

• Fast and Normal modes for write data speed

• Anti-tearing feature for secure write transactions

• Asynchronous operation for low power

consumption and flexible choice of carrier

frequency bands

• Internal resonance capacitors

(MCRF451/452/ 455)

• Two pad connections for external antenna circuit

(MCRF452)

• Three pad connections for external antenna

circuit (MCRF450, 451, 455)

• Very low power CMOS design

• Die in waffle pack, wafer, wafer on frame, bumped

wafer, COB, PDIP or SOIC package options

Applications

• Item Level Tagging: To read and write multiple

items in long read range environment.

• Anti-Counterfeit: The device has a unique

feature to distinguish between paid, unpaid or

returned merchandise.

• Inventory Management: Tag’s data can be read

or updated (written) in multiple tags and long

range environment. Its memory (32 blocks, 1 Kbit,

each block = 32 bits) is well organized for the

inventory management applications.

• Product Identifications

• Airline Baggage Tracking

• Book Store and Library Book ID

• Low Cost Animal Ear Tags: The device’s long

range reading performance combined with 1 Kbit

of memory is suitable for animal tagging applica-

tions. Tag cost can be cheaper and read range is

much longer than existing 125 kHz conventional

animal ear tags.

• Toys and Gaming Tools: Device’s anti-collision

feature for reading and writing allows to make

intelligent interactive toys and gaming tools.

• Access Control and Time Attendance Cards:

Device’s long range performance allows to make

long range access control, parking lot entry, and

time attendance cards.

Inexpensive finished tags and readers are available

from Microchip’s worldwide OEM partners. Please

contact Microchip Technology Inc. near you or visit

http://www.microchip.com for further product

information and inquiries for your applications.

Typical Configuration for Applications

Interrogator

(Reader/Writer)

Read/Write

Command and Data Ant. A

Data

MCRF452

VSS

Read/Write Range:~ up to 1.5 meters depending

on tag size and system

requirements.

 2003 Microchip Technology Inc.

DS40232H-page 1

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