NXP Semiconductors

Product Specification

Security Transponder (HITAG2)

PCF7936AS

2010 May 04

2

CONFIDENTIAL

CONTENT

1

FEATURES ............................................................................................................................................................................... 4

2

GENERAL DESCRIPTION........................................................................................................................................................ 4

3

ORDERING INFORMATION..................................................................................................................................................... 4

4

BLOCK DIAGRAM .................................................................................................................................................................... 5

5

TYPICAL APPLICATION .......................................................................................................................................................... 5

6

QUICK REFERENCE DATA ..................................................................................................................................................... 6

7

FUNCTIONAL DESCRIPTION SECURITY TRANSPONDER .................................................................................................. 7

7.1

Memory Organization, EEPROM ................................................................................................................................... 7

7.1.1 Identifier, IDE......................................................................................................................................................... 8

7.1.3 Secret Key, SK ...................................................................................................................................................... 9

7.1.4 Transponder and Memory Configuration, TMCF ................................................................................................... 9

Secret Key Lock, SKL..............................................................................................................................9

Page 3 Lock, PG3L ................................................................................................................................. 9

Protect Write User Page 4 and 5, PWP1................................................................................................. 9

Protect Write User Page 6 and 7, PWP0................................................................................................. 9

Enable Cipher Mode, ENC ...................................................................................................................... 9

Mode Select, MS ................................................................................................................................... 10

Data Coding Select, DCS ...................................................................................................................... 10

7.1.6 User Pages, USER 0 to 3 .................................................................................................................................... 10

7.2

Transponder State Diagram......................................................................................................................................... 11

7.2.1 WAIT State .......................................................................................................................................................... 11

7.2.2 AUTHORIZED State............................................................................................................................................ 12

7.2.3 HALT State .......................................................................................................................................................... 12

7.2.4 READ ONLY State .............................................................................................................................................. 12

7.3

Command Set .............................................................................................................................................................. 13

7.3.1 Command Description ......................................................................................................................................... 14

HALT ..................................................................................................................................................... 15

READ_PAGE ........................................................................................................................................ 15

READ_PAGE_INV................................................................................................................................. 16

START_AUTH (Password Mode) .......................................................................................................... 17

START_AUTH (Cipher Mode) ............................................................................................................... 18

WRITE_PAGE....................................................................................................................................... 19

7.4

Calculation Unit............................................................................................................................................................ 20

7.5

Read Only Modes ........................................................................................................................................................ 21

7.5.1 ISO 11784/5 (MS1 = 0, MS0 = 0) ........................................................................................................................ 21

7.5.2 MIRO Mode (MS1 = 0, MS0 = 1) ......................................................................................................................... 21

7.5.3 PCF7931/30/35 (MS1 = 1, MS0 = 0) ................................................................................................................... 21

7.6

Transponder Data Transmission Format ..................................................................................................................... 22

7.6.1 Read Direction..................................................................................................................................................... 22

7.6.2 Write Direction ..................................................................................................................................................... 23

7.7

LF Field Power On Reset............................................................................................................................................. 24

8

EEPROM CONTENT AT DELIVERY ...................................................................................................................................... 25

9

LIMITING VALUES ................................................................................................................................................................. 26

10 DEVICE CHARACTERISTICS ................................................................................................................................................ 27

10.1

Electrical Characteristics.............................................................................................................................................. 27

10.2

Timing Characteristics ................................................................................................................................................. 28

10.3

Mechanical Characteristics .......................................................................................................................................... 29

11 TEST SETUP .......................................................................................................................................................................... 30

12 DEVELOPMENT TOOLS ........................................................................................................................................................ 31