MFRC52201HN1,151 NXP Semiconductors, MFRC52201HN1,151 Datasheet - Page 55
MFRC52201HN1,151
Manufacturer Part Number
MFRC52201HN1,151
Description
IC READER 13.56MHZ 32-HVQFN
Manufacturer
NXP Semiconductors
Datasheet
1.MFRC52201HN1157.pdf
(109 pages)
Specifications of MFRC52201HN1,151
Rf Type
Read / Write
Frequency
13.56MHz
Package / Case
32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
935280547151
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NXP Semiconductors
112132
Product data sheet
10.4.6 7-BIT ADDRESSING
During the I
to determine which slave will be selected by the master.
As an exception several address numbers are reserved. During device configuration, the
designer has to ensure, that no collision with these reserved addresses is possible. Check
the corresponding I
The I
after releasing the reset pin or after power on reset, the device defines the I
according EA pin.
If EA Pin is set to LOW than for all MFRC522 devices the upper 4 bits of the device bus
address are reserved by NXP and set to 0101(bin). The remaining 3 bits (ADR_0, ADR_1,
ADR_2) of the Slave Address can freely configured by the customer in order to prevent
collisions with other I
If EA Pin is set to HIGH than ADR_0 to ADR_5 can be completely specified at the external
pins according to Table
Interface
In both modes, the external address coding is latched immediately after releasing the
reset condition. Further changes at the used pins are not taken into consideration.
Depending on the external wiring, the I
output.
Fig 15. Data transfer on the I
2
C address specification is dependent on the definition of the EA Pin. Immediately
Types”. ADR_6 is always set to logic 0.
2
C-bus addressing procedure, the first byte after the START condition is used
2
C specification for a complete list of reserved addresses.
2
C devices.
Rev. 3.2 — 22 May 2007
Table 135 “Connection Scheme for detecting the different
2
C- bus.
2
C address pins could be used for test signal
Contactless Reader IC
MFRC522
© NXP B.V. 2007. All rights reserved.
2
C address
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