參數(shù)資料
型號(hào): MFRC52301HN1
廠商: NXP Semiconductors N.V.
元件分類: 通信及網(wǎng)絡(luò)
英文描述: Contactless reader IC
封裝: MFRC52301HN1<SOT617-1 (HVQFN32)|<<http://www.nxp.com/packages/SOT617-1.html<1<Always Pb-free,;MFRC52301HN1<SOT617-1 (HVQFN32)|<<http://www.nxp.com/packages/SOT617-1.html&
文件頁數(shù): 9/98頁
文件大小: 1666K
代理商: MFRC52301HN1
MFRC523
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
COMPANY PUBLIC
Rev. 3.7 — 8 November 2011
115237
9 of 98
NXP Semiconductors
MFRC523
Contactless reader IC
The internal CRC coprocessor calculates the CRC value based on ISO/IEC 14443 A
part 3 and handles parity generation internally based on the transfer speed. Automatic
parity generation can be switched off using the ManualRCVReg register’s ParityDisable
bit.
8.2 ISO/IEC 14443 B functionality
The MFRC523 reader IC fully supports the ISO 14443 international standard which
includes the communication schemes ISO 14443 A and ISO 14443 B. Refer to the
ISO 14443 reference documents
Identification cards - Contactless integrated circuit cards
- Proximity cards
(parts 1 to 4).
Remark:
NXP Semiconductors does not offer a software library to enable design-in of the
ISO 14443 B protocol.
8.3 Digital interfaces
8.3.1
Automatic microcontroller interface detection
The MFRC523 supports direct interfacing to hosts using SPI, I
2
C-bus or serial UART
interfaces. The MFRC523 resets its interface and checks the current host interface type
automatically after performing a power-on or hard reset.
The MFRC523 identifies the host interface by sensing the logic levels on the control pins
after the reset phase. This is done using a combination of fixed pin connections.
Table 5
shows the different pin connection configurations.
Fig 6.
Data coding and framing according to ISO/IEC 14443 A
001aak585
ISO/IEC 14443 A framing at 106 kBd
start
8-bit data
8-bit data
8-bit data
odd
parity
odd
parity
odd
parity
start bit is 1
ISO/IEC 14443 A framing at 212 kBd, 424 kBd and 848 kBd
start
8-bit data
8-bit data
8-bit data
odd
parity
odd
parity
even
parity
start bit is 0
burst of 32
subcarrier clocks
even parity at the
end of the frame
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