MCRF450/451/452/455
M
13.56 MHz Read/Write Passive RFID Device
Features
Applications
• Contactless read and write with anti-collision
algorithm
• Item Level Tagging: To read and write multiple
items in long read range environment.
• 1024 bits (32 blocks) of total memory
• 928 bits (29 blocks) of user programmable
memory
• Anti-Counterfeit: The device has a unique fea-
ture 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 anticollision
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.
• 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 consump-
tion 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
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
Read/Write
Command and Data
Ant. A
Interrogator
MCRF452
(Reader/Writer)
VSS
Data
Read/Write Range:~ up to 1.5 meters depending
on tag size and system
requirements.
2002 Microchip Technology Inc.
DS40232F-page 1