MFRC522_ Просмотр технического описания (PDF) - NXP Semiconductors.
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MFRC522_ Datasheet PDF : 96 Pages
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NXP Semiconductors
7. Pinning information
MFRC522
Contactless reader IC
I2C 1
PVDD 2
DVDD 3
DVSS 4
PVSS 5
NRSTPD 6
MFIN 7
MFOUT 8
MFRC522
24 SDA/NSS/RX
23 IRQ
22 OSCOUT
21 OSCIN
20 AUX2
19 AUX1
18 AVSS
17 RX
Transparent top view
Fig 3. Pinning configuration HVQFN32 (SOT617-1)
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7.1 Pin description
Table 3.
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Pin description
Symbol
Type[1] Description
I2C
I
I2C-bus enable input[2]
PVDD
P
pin power supply
DVDD
P
digital power supply
DVSS
G
digital ground[3]
PVSS
G
pin power supply ground
NRSTPD I
reset and power-down input:
power-down: enabled when LOW; internal current sinks are switched off, the oscillator
is inhibited and the input pins are disconnected from the outside world
reset: enabled by a positive edge
MFIN
I
MIFARE signal input
MFOUT
O
MIFARE signal output
SVDD
P
MFIN and MFOUT pin power supply
TVSS
G
transmitter output stage 1 ground
TX1
O
transmitter 1 modulated 13.56 MHz energy carrier output
TVDD
P
transmitter power supply: supplies the output stage of transmitters 1 and 2
TX2
O
transmitter 2 modulated 13.56 MHz energy carrier output
TVSS
G
transmitter output stage 2 ground
AVDD
P
analog power supply
MFRC522_34
Product data sheet
PUBLIC
All information provided in this document is subject to legal disclaimers.
Rev. 3.4 — 5 March 2010
112134
© NXP B.V. 2010. All rights reserved.
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