Philips Semiconductors
ISO 14443 Reader IC
3 MF RC531 PINNING
3.1 Pinning Diagram
The device is packaged in a 32 pin SO-package.
Short From Specification Rev. 2.0 February 2002
MF RC531
DVDD
DVSS
A0-A3
D0-D7
NRD
NWR
NCS
ALE
IRQ
RST
XOUT
XIN
MF RC531
TVDD
TVSS
TX1
TX2
AVDD
AVSS
RX
VMID
AUX
MFOUT
MFIN
Figure 3-1: MF RC531
The device operates with 3 individual power supplies for best performance in terms of EMC behaviour and
signal de-coupling. This gives outstanding RF performance and also maximum flexibility to adapt to different
operating voltages of digital and analog part.
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