HT1DC20S30/F - Philips Semiconductors / NXP Semiconductors

DATA SH EET

INTEGRATED CIRCUITS

HT1 DC20 S30

HITAGTM1 Stick Transponder

Product Speciﬁcation

Revision 3.0 2000 Apr 19

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Philips Semiconductors Product Speciﬁcation Revision 3.0 2000 Apr 19

HITAGTM1 Stick Transponder HT1 DC20 S30

CONTENTS

1 FEATURES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2 GENERAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . 3

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

4 QUICK REFERENCE DATA. . . . . . . . . . . . . . . . . . . 4

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

6 RELATED DOCUMENTS . . . . . . . . . . . . . . . . . . . . . 6

7 WRITE COMMAND - SAFETY INSTRUCTIONS . . . 6

8 LIMITING VALUES . . . . . . . . . . . . . . . . . . . . . . . . . . 6

9 ELECTRICAL CHARACTERISTICS. . . . . . . . . . . . . 7

10 MECHANICAL CHARACTERISTICS . . . . . . . . . . . . 8

11 DEFINITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

12 LIFE SUPPORT APPLICATIONS. . . . . . . . . . . . . . . 9

13 REVISION HISTORY . . . . . . . . . . . . . . . . . . . . . . . 10

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HITAGTM1 Stick Transponder HT1 DC20 S30

1 FEATURES

•Complete identification transponder for use in

contactless applications

•Operating frequency 125 kHz

•Data transmission and supply energy via RF link, no

internal battery

•Low power EEPROM technology for writing distance

that equals reading distance

•Total memory size 2048 bit

•Parts of memory can be write protected by the user

•Effective communication protocol with outstanding data

integrity check

•Secure mutual authentication function

•Encrypted data transmission

•Anticollision protocol for handling of multiple

transponders inside the field of the reader antenna.

2 GENERAL DESCRIPTION

The HT1 DC20 S30, based on the HITAG 1 IC, is a high

performance transponder for bi-directional data

transmission in half duplex mode.

Data are stored in the transponder in a non –volatile

memory (EEPROM). The transponder acts as a passive

device, thus not having the need for any internal power

supply (battery).

It derives power from the magnetic component of the RF

carrier frequency generated by the reader. Data is

transmitted by modulating this carrier.

The HT1 DC20 S30 is dedicated for use in secure access

systems where the transponder and the reader have to

identify each other.

TheEEPROMhas acapacity of2048bitsandis organised

in 64 pages. Access is provided either in page mode or in

block mode, where 1 block includes 4 pages.

Absorption modulation is used to transmit data from the

transponder to the reader. The transponder absorbs the

magnetic field which hence modulates the current in the

reader antenna. Data transmission to the HT1 DC20 S30

uses binary pulse length modulation (BPLM).

The anticollision feature of the transponder allows to

operateseveraltransponderssimultaneouslyin thefieldof

the reader antenna. To use that feature, the reader needs

tohave implementedtheanticollisionprotocolandmust be

able to detect bit-collisions. (e.g. the Philips HTRM800

long range reader module includes the anticollision

protocol.)

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HITAGTM1 Stick Transponder HT1 DC20 S30

3 ORDERING INFORMATION

4 QUICK REFERENCE DATA

EXTENDED TYPE NUMBER PACKAGE DRAWING TEMPERATURE

RANGE (°C)

HT1 DC20 S30/F SOT385-1 SOT385BA4 −40 to +85

PARAMETER VALUE UNIT

Carrier frequency 125 kHz (typical)

Data transmission mode half-duplex

Transfer rate

•transponder -> reader

•reader -> transponder 4.0

5.2

kbit/s

Coding

•transponder -> reader

•reader -> transponder Manchester / Biphase

BPLM (binary pulse length modulation)

Modulation ASK (amplitude shift keying)

Memory size 2048 bit

Memory organization 64 page

Encrypted mutual authentication

•Serial Number

•Secret Key 32

bit

Special features •user defined write protection

•unique 32 bit serial number for each transponder

•encrypted data transmission possible

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HITAGTM1 Stick Transponder HT1 DC20 S30

5 BLOCK DIAGRAM

Fig.1 Blockdiagram transponder.

RECTIFIER

VOLTAGE LIMITER DATA

ACQUISITION

POWER-ON

RESET

CLOCK

RECOVERY

MODULATOR

DEMODULATOR

EEPROM

ACCESS CONTROL

CALCULATION UNIT

EEPROM

CONTROL LOGIC

CONTACTLESS INTERFACE

TRANSPONDER IC

HT1 DC20 S30

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HITAGTM1 Stick Transponder HT1 DC20 S30

6 RELATED DOCUMENTS

For additional informations on the functional description of the HT1 DC20 S30, in particular the protocol between reader

and transponder please refer to the document „Data Sheet, HT1 Transponder Family, Communication Protocol

Reader ↔HITAG 1 Transponder.“

7 WRITE COMMAND - SAFETY INSTRUCTIONS

When writing to page 1 (configuration page) we strongly recommend to carefully follow the instructions in the document

"HT1 Transponder Family, Communication Protocol, Reader - HITAG1 Transponder". In particular, overwriting the

reserved bits in configuration page 1 may lead to reduced reading range of the HT1 DC20 S30.

8 LIMITING VALUES

All values are in accordance with the Absolute Maximum Rating System (IEC 134).

PARAMETER CONDITION MIN. MAX. UNIT

number of erase/write cycles of the EEPROM 22 °C 100000

data retention time of the EEPROM @ 55 °C 10 years

operating temperature range −40 85 °C

storage temperature range −55 125 °C

magnetic ﬂux density (resistivity against

magnetic pulses) 0.2 T

vibration 10 −2000 Hz

3-axis

IEC 68-2-6, Test Fc

10 g

shock 3-axis

IEC 68-2-27, Test Ea

1500 g

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HITAGTM1 Stick Transponder HT1 DC20 S30

9 ELECTRICAL CHARACTERISTICS

T0 = 8 µs (period length for f0 = 125 kHz). All parameters are guaranteed within the temperature range from

Tamb =−40°C to +85°C.

All parameters are characterized with the SCEMTEC test equipment (STM-1), available from SCEMTEC,

Reichshof-Wenrath, Germany.

Note

1. Maximum available field strength of the test equipment. Transponder limit has not been characterized.

SYMBOL PARAMETER CONDITION MIN. MAX. UNIT

fRES resonance frequency 120 130 kHz

BWbandwidth 2.3 kHz

BTHR magnetic ﬂux density,

data transmission from transponder fCARRIER = 125 kHz 50 400 (1) µTpp

BPRG magnetic ﬂux density for programming

the EEPROM m = 0.95

f0 = 125 kHz

tLOW = 8 T0

50 400 (1) µTpp

BAUTH magnetic ﬂux density for mutual

authentication m = 0.95

f0 = 125 kHz

tLOW = 8 T0

50 400 (1) µTpp

BREAD ﬁeld absorption due to the modulation

of the transponder f0= 125 kHz

BFIELD =50µTpp

8µTpp

MIPRG modulation index (m) of the base

station for programming and

authentication

f0= 125 kHz

BFIELD =50µTpp

tLOW = 8 T0

95 100 %

Fig.2 Definition of modulation index.

min

max

mBmax Bmin

–()

Bmax Bmin

+()

--------------------------------------------

Bread Bmax Bmin

–=

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HITAGTM1 Stick Transponder HT1 DC20 S30

10 MECHANICAL CHARACTERISTICS

The transponder is sealed in epoxy resin moulding compound. The outline of the package is given in Fig.3. The

designation of the package is SOT385-1.

PARAMETER VALUE UNIT

mechanical dimensions 12 x 6 x 3 mm

protection class IP67

casting material epoxy resin

Fig.3 Package outlines SOT385-1.

otherwise specified

Protruding plastic must not exceed

specified dimension by more than 0.2 mm

all Radii, if not

1.1-1.2

2.9-3.05

4.9-5.1 1.9-2.1

4.4 - 4.6

11.9-12.1

5.9-6.1

R 0.5 max.

0-7˚ (5x)

44˚-46˚

0.165

( without Scale )

Cross Section A-A

R 0.9-1.0

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HITAGTM1 Stick Transponder HT1 DC20 S30

11 DEFINITIONS

12 LIFE SUPPORT APPLICATIONS

These products are not designed for use in life support appliances, devices, or systems where malfunction of these

products can reasonably be expected to result in personal injury. Philips customers using or selling these products for

use in such applications do so on their own risk and agree to fully indemnify Philips for any damages resulting from such

improper use or sale.

Data sheet status

Objective speciﬁcation This data sheet contains target or goal speciﬁcations for product development.

Preliminary speciﬁcation This data sheet contains preliminary data; supplementary data may be published later.

Product speciﬁcation This data sheet contains ﬁnal product speciﬁcations.

Limiting values

Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or

more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation

of the device at these or at any other conditions above those given in the Characteristics sections of the speciﬁcation

is not implied. Exposure to limiting values for extended periods may affect device reliability.

Application information

Where application information is given, it is advisory and does not form part of the speciﬁcation.

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HITAGTM1 Stick Transponder HT1 DC20 S30

13 REVISION HISTORY

Table 1 HITAGTM1 Stick Transponder Revision History

REVISION DATE CPCN PAGE DESCRIPTION

3.0 April 2000 - Initial version.

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HITAGTM1 Stick Transponder HT1 DC20 S30

NOTES

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