Datasheet

MF1S50YYX All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
Product data sheet
COMPANY PUBLIC
Rev. 3.0 — 2 May 2011
196330 32 of 39
NXP Semiconductors
MF1S50yyX
MIFARE Classic 1K - Mainstream contactless smart card IC
15. Abbreviations
Table 30. Abbreviations and symbols
Acronym Description
ACK ACKnowledge
ATQA Answer To reQuest, Type A
CRC Cyclic Redundancy Check
CT Cascade Tag (value 88h) as defined in ISO/IEC 14443-3 Type A
EEPROM Electrically Erasable Programmable Read-Only Memory
FDT Frame Delay Time
FFC Film Frame Carrier
IC Integrated Circuit
LCR L = inductance, Capacitance, Resistance (LCR meter)
LSB Least Significant Bit
NAK Not AcKnowledge
NUID Non-Unique IDentifier
NV Non-Volatile memory
PCD Proximity Coupling Device (Contactless Reader)
PICC Proximity Integrated Circuit Card (Contactless Card)
REQA REQuest command, Type A
RID Random ID
RF Radio Frequency
RMS Root Mean Square
RNG Random Number Generator
SAK Select AcKnowledge, type A
SECS-II SEMI Equipment Communications Standard part 2
TiW Titanium Tungsten
UID Unique IDentifier
WUPA Wake-Up Protocol type A