Quickcool Radio modules KEYFOB-MF1K-03ABS-BU Data Sheet

MF1S50YYX

All information provided in this document is subject to legal disclaimers.

© NXP B.V. 2011. All rights reserved.

Remark: For the 4-byte non-unique ID product versions, the identifier retrieved from the 
card is not defined to be unique. For further information regarding handling of non-unique 
identifiers see 

.

With the select card command the reader selects one individual card for authentication 
and memory related operations. The card returns the Select AcKnowledge (SAK) code 
which determines the type of the selected card, see 

. For further details refer to 

the document 

.

After selection of a card the reader specifies the memory location of the following memory 
access and uses the corresponding key for the three pass authentication procedure. After 
a successful authentication all memory operations are encrypted.

 

Request Standard

Request All

Anticollision Loop

Get Identifier

Select Card

3 Pass Authenticationon

specific sector

 

Read

Block

Write

Block

Decre-

ment

Incre-

ment

Re-

store

Halt

Transfer

Identification and Selection

Procedure

~2.5 ms 

without collision

+ ~1 ms

for 7-byte UID

Typical Transaction Time

Authentication Procedure

~2 ms

Transaction Sequence

POR

Memory Operations

~2.5 ms

read block

~5.5 ms

write block

~2.5 ms

de-/increment

~4.5 ms

transfer

+ ~1 ms

for each collision