MFRC522 datasheet(2/109 Pages) NXP

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MFRC522 데이터시트(PDF) 2 Page - NXP Semiconductors

2 / 109 page

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Product data sheet

Rev. 3.2 — 22 May 2007

2 of 109

NXP Semiconductors

MFRC522

Contactless Reader IC

SPI interface up to 10 Mbit/s

I2C interface up to 400 kbit/s in Fast mode, up to 3400 kbit/s in High-speed mode

serial UART in different transfer speeds up to 1228.8 kbit/s, framing according to

the RS232 interface with voltage levels according pad voltage supply

Comfortable 64 byte send and receive FIFO-buffer

Flexible interrupt modes

Hard reset with low power function

Power-down mode per software

Programmable timer

Internal oscillator to connect 27.12 MHz quartz

2.5 - 3.3 V power supply

CRC Co-processor

Free programmable I/O pins

Internal self test

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