MFRC50001T/0FE,112 NXP Semiconductors, MFRC50001T/0FE,112 Datasheet - Page 36

• Manufacturer Part Number: MFRC50001T/0FE,112
• Description: IC MIFARE READER 32-SOIC
• Manufacturer: NXP Semiconductors
• Series: MIFARE®r

Specifications of MFRC50001T/0FE,112

• Rf Type: Read Only
• Frequency: 13.56MHz
• Features: ISO14443-A, ISO14443-B, ISO15693
• Package / Case: 32-SOIC (0.300", 7.50mm Width)
• Product: RFID Readers
• Operating Temperature Range: - 25 C to + 85 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 568-2222-5; 935268039112; MFRC500; MFRC51T0FED

NXP Semiconductors
MFRC500_33
Product data sheet
PUBLIC
9.12.1 Crypto1 key handling
9.12.2 Authentication procedure
On execution of the authentication command, the MFRC500 reads the key from the key
buffer. The key is always read from the key buffer and ensures Crypto1 authentication
commands do not require addressing of a key. The user must ensure the correct key is
prepared in the key buffer before triggering card authentication.
The key buffer can be loaded from:
The Crypto1 security algorithm enables authentication of MIFARE cards. To obtain valid
authentication, the correct key has to be available in the key buffer of the MFRC500. This
can be ensured as follows:
1. Load the internal key buffer by using the LoadKeyE2 (see
2. Start the Authent1 command (see
3. Start the Authent2 command (see
Fig 13. Crypto1 key handling block diagram
•
•
the EEPROM using the LoadKeyE2 command (see
the microprocessor’s FIFO buffer using the LoadKey command (see
on page
or the LoadKey (see
the error flags to obtain the command execution status.
the error flags and bit Crypto1On to obtain the command execution status.
from the microcontroller
81). This is shown in
All information provided in this document is subject to legal disclaimers.
Rev. 3.3 — 15 March 2010
Section 11.6.2 on page
FIFO BUFFER
048033
Figure
serial data stream in
(plain)
Section 11.6.3 on page
Section 11.6.4 on page
13.
Highly Integrated ISO/IEC 14443 A Reader IC
LoadKey
WriteE2
81) commands.
KEY BUFFER
CRYPTO1
EEPROM
MODULE
Section 11.6.1 on page
KEYS
during
Authent1
Section 11.6.1 on page
82). When finished, check
82). When finished, check
serial data stream out
(encrypted)
LoadKeyE2
MFRC500
© NXP B.V. 2010. All rights reserved.
Section 11.6.2
001aak624
81)
36 of 110
81)