mfrc531 NXP Semiconductors, mfrc531 Datasheet - Page 2

• Manufacturer Part Number: mfrc531
• Description: Iso/iec 14443 Reader Ic
• Manufacturer: NXP Semiconductors

NXP Semiconductors
3. Features
MFRC531_34
Product data sheet
PUBLIC
3.1 General
The internal transmitter module
designed for a proximity operating distance up to 100 mm without any additional active
circuitry.
A parallel interface can be directly connected to any 8-bit microprocessor to ensure
reader/terminal design flexibility. In addition, Serial Peripheral Interface (SPI) compatibility
is supported (see
Highly integrated analog circuitry for demodulating and decoding card/label response
Buffered output drivers enable antenna connection using the minimum of external
components
Proximity operating distance up to 100 mm
Supports both ISO/IEC 14443 A and ISO/IEC 14443 B standards
Supports the MIFARE Mini, MIFARE 1K, MIFARE 4K protocols
Contactless communication at MIFARE higher baud rates (up to 424 kBd)
Crypto1 and secure non-volatile internal key memory
Pin-compatible with the MFRC500, MFRC530 and the SLRC400
Parallel microprocessor interface with internal address latch and IRQ line
SPI compatibility
Flexible interrupt handling
Automatic detection of parallel microprocessor interface type
64-byte send and receive FIFO buffer
Hard reset with low power function
Software controlled Power-down mode
Programmable timer
Unique serial number
User programmable start-up configuration
Bit-oriented and byte oriented framing
Independent power supply pins for analog, digital and transmitter modules
Internal oscillator buffer optimized for low phase jitter enables 13.56 MHz quartz
connection
Clock frequency filtering
3.3 V to 5 V operation for transmitter in short range and proximity applications
3.3 V or 5 V operation for the digital module
Section 9.1.4 on page
Rev. 3.4 — 26 January 2010
056634
(Section 9.9 on page
9).
29) can directly drive an antenna
ISO/IEC 14443 reader IC
MFRC531
© NXP B.V. 2010. All rights reserved.
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