NXP Semiconductors
MFRC523
Contactless reader IC
3. Features and benefits
Highly integrated analog circuitry to demodulate and decode responses
Buffered output drivers for connecting an antenna with the minimum number of
external components
Supports ISO/IEC 14443 A/MIFARE
Supports ISO/IEC 14443 B Read/Write modes
Typical operating distance in Read/Write mode up to 50 mm depending on the
antenna size and tuning
Supports MIFARE Mini, MIFARE 1K and MIFARE 4K encryption in Read/Write mode
Supports ISO/IEC 14443 A higher transfer speed communication at 212 kBd, 424 kBd
and 848 kBd
Supports MFIN/MFOUT
Additional internal power supply to the smart card IC connected via MFIN/MFOUT
Supported host interfaces
SPI up to 10 Mbit/s
I2C-bus interface up to 400 kBd in Fast mode, up to 3400 kBd in High-speed mode
RS232 Serial UART up to 1228.8 kBd, with voltage levels dependant on pin
voltage supply
FIFO buffer handles 64 byte send and receive
Flexible interrupt modes
Hard reset with low power function
Power-down by software mode
Programmable timer
Internal oscillator for connection to 27.12 MHz quartz crystal
2.5 V to 3.3 V power supply
CRC coprocessor
Programmable I/O pins
Internal self-test
4. Quick reference data
Table 1. Quick reference data
Symbol Parameter
VDDA
analog supply voltage
VDDD
digital supply voltage
VDD(TVDD) TVDD supply voltage
VDD(PVDD) PVDD supply voltage
VDD(SVDD) SVDD supply voltage
Ipd
power-down current
IDDD
digital supply current
Conditions
VDD(PVDD) ≤ VDDA = VDDD = VDD(TVDD);
VSSA = VSSD = VSS(PVSS) = VSS(TVSS) = 0 V
VSSA = VSSD = VSS(PVSS) = VSS(TVSS) = 0 V
VDDA = VDDD = VDD(TVDD) = VDD(PVDD) = 3 V
hard power-down; pin NRSTPD set LOW
soft power-down; RF level detector on
pin DVDD; VDDD = 3 V
Min Typ Max Unit
[1][2] 2.5 3.3 3.6 V
2.5 3.3 3.6 V
2.5 3.3 3.6 V
[3] 1.6 1.8 3.6 V
1.6 -
3.6 V
[4] -
-
5
μA
[4] -
-
10 μA
-
6.5 9
mA
MFRC523_33
Product data sheet
PUBLIC
All information provided in this document is subject to legal disclaimers.
Rev. 3.3 — 5 March 2010
115233
© NXP B.V. 2010. All rights reserved.
2 of 98