MCRF200 データシートの表示（PDF） - Microchip Technology

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MCRF200

125 kHz microID Passive RFID Device

Microchip Technology 

MCRF200

Block Diagram

Modulation

Control

Data

Coil

Connections

Clock

Generator

VCC

Rectifier

VSS

The configuration register includes options for commu-

nication protocol (ASK, FSK, PSK), data encoding

method, data rate, and data length.These options are

specified by customer and factory programmed during

assembly. Because of its many choices of configuration

options, the device can be easily used as an alternative

or second source for most of the existing low frequency

passive RFID devices available today.

The device has a modulation transistor between the

two antenna connections (VA and VB). The modulation

transistor damps or undamps the coil voltage when it

sends data. The variation of coil voltage controlled by

the modulation transistor results in a perturbation of

voltage in reader antenna coil. By monitoring the

changes in reader coil voltage, the data transmitted

from the device can be reconstructed.

Row

Decode

Memory

Array

Counter

Column

Decode

The device is available in die, wafer, Chip-on-Board

(COB) modules, PDIP, or SOIC packages. Factory

programming and memory serialization (SQTP) are

also available upon request. See TB023 for more

information on contact programming support.

The DV103001 developer’s kit includes Contactless

Programmer, ASK, FSK, PSK reference readers, and

reference design guide. The reference design guide

includes schematics for readers and contactless

programmer as well as in-depth document for antenna

circuit designs.

DS21219H-page 2

 2003 Microchip Technology Inc.

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