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INTEGRATED CIRCUITS
DATA SHEET
HTRM440 family
HITAG proximity reader module
hardware
Product specification
Supersedes data of 1999 Feb 01
File under Integrated Circuits, IC11
2001 Oct 04

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Philips Semiconductors
HITAG proximity reader module
hardware
CONTENTS
1
2
3
4
5
6
6.1
6.2
6.3
6.4
7
7.1
7.1.1
7.1.2
7.1.3
7.1.4
7.1.5
7.2
7.3
7.3.1
7.3.2
7.3.3
7.4
7.5
7.5.1
7.5.2
7.5.3
7.5.4
7.6
7.6.1
7.6.2
7.6.3
FEATURES
APPLICATIONS
GENERAL DESCRIPTION
ORDERING INFORMATION
BLOCK DIAGRAM
PINNING
Input and output pins
Antenna tuning connections
Interface connector
Power supply connector
FUNCTIONAL DESCRIPTION
System overview
Transponders
Antenna
Host system
Input and output functions
Power supply
Reader module software
Reader module hardware
Core module
Interface microcontroller to host
Voltage regulation filtering
Postal approval
Security considerations
Data stream between reader module and
HITAG 1 transponders
Data stream between reader module and
HITAG 2 transponders
Checking user data
Data privacy
Operating security
Anticollision
Monitoring the supply voltage
Detection of antenna rupture and antenna
short-circuit
Product specification
HTRM440 family
8 ELECTRICAL SPECIFICATIONS
9 MECHANICAL SPECIFICATIONS
10 APPLICATION INFORMATION
10.1 Metallic environment, interferences
10.2 Distance between two antennas
10.3 Possible sources of errors by connecting the
HTRM440
11 SURVEY OF REFERENCED DOCUMENTS
12 DATA SHEET STATUS
13 DEFINITIONS
14 DISCLAIMERS
2001 Oct 04
2

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Philips Semiconductors
HITAG proximity reader module
hardware
Product specification
HTRM440 family
1 FEATURES
Compact size
Communication with all HITAG transponders and
various other 125 kHz transponders
Proximity communication distances up to 200 mm
Data encryption and key handling
Fast and easy system integration
Three interface options
Standard connectors
Simple antenna design
DC power supply from 9 to 16 V
Switches and LEDs connectable
Meets all requirements for CE and EMI approval.
2 APPLICATIONS
Universal and flexible reader module for proximity
systems.
3 GENERAL DESCRIPTION
HITAG(1) is the name of one of the universal and powerful
product lines of our 125 kHz family. The contactless
proximity read and write system that works with passive
transponders is suitable for various applications. Inductive
coupling helps you to achieve reading ranges up to
200 mm and the use of cryptography guarantees highest
data security.
The HTRM440 provides you with a universal,
cost-effective, small and complete reader module. It
enables communication with the 125 kHz transponders
HITAG 1 and HITAG 2.
Easy integration and application of the HTRM440 is due to
small size and uncomplicated interfaces.
(1) HITAG - is a trademark of Philips Semiconductors
Gratkorn GmbH.
4 ORDERING INFORMATION
PART NUMBER
HTRM440/AIE
HTRM440/BIE
HTRM440/CIE
NAME
HITAG proximity reader module RS232
HITAG proximity reader module RS422
HITAG proximity reader module RS485
ORDER CODE (12NC)
9352 338 70122
9352 338 80122
9352 338 90122
2001 Oct 04
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Philips Semiconductors
HITAG proximity reader module
hardware
5 BLOCK DIAGRAM
Product specification
HTRM440 family
handbook, full pagewiDdtCh POWER
SUPPLY
9 to 16 V
HOST
SYSTEM
VOLTAGE
REGULATION
FILTERING
I/O FUNCTIONS
LINE DRIVER
RS232
RS485
RS422
EEPROM
MEMORY
TRANSMITTER
MICRO-
CONTROLLER
RECEIVER
CORE MODULE
HTCM400
HTRM440
MGW269
R1
C
R2 (1)
L
antenna
(1) R2 has only to be used for antenna cable lengths of more than 500 mm.
Fig.1 Block diagram.
6 PINNING
6.1 Input and output pins
The pins for all inputs, outputs and antenna connections are shown in Fig.2.
SYMBOL
PIN TYPE(1)
DESCRIPTION
D1 cathode
D1 anode
D2 cathode
D2 anode
D3 cathode
D3 anode
SW1 a
SW1 b
SW2 a
SW2 b
RX
TX1
TX2
1 P these pins can be used to connect a power LED1
2O
3 P these pins can be used to connect LED2 and LED3 which are driven by the
4 O output pins of the core module
5P
6O
7 I these pins can be used as inputs for switch SW1 and SW2 and are internally
8 GND connected to pins 17 and 18 of the HITAG core module
9I
10 GND
11 I receiver input; this antenna signal input has to be connected to the input line of
the antenna
12 O transmitter output; this antenna signal output has to be connected to the
output line of the antenna
13 GND antenna ground; the ground line of the antenna has to be connected to this pin
Note
1. P = power supply pin, O = output pin, I = input pin and GND = ground supply pin.
2001 Oct 04
4

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Philips Semiconductors
HITAG proximity reader module
hardware
interface
connector
power supply
connector
1
2
3
4
5
6
7
8
9
10
3 places
for tuning
capacitors
11
12
13
MGW271
Product specification
HTRM440 family
6.2 Antenna tuning connections
Three spare places for antenna tuning capacitors are
available on the PCB (see Fig.2).
6.3 Interface connector
INTERFACE TYPE
PIN
RS232
RS485
RS422
1 n.c. n.c. n.c.
2 RxD
A
A
3 TxD
A+
A+
4 n.c. n.c. n.c.
5 ground
ground
ground
6 n.c. n.c. n.c.
7 i.c. i.c. B+
8 i.c. i.c. B
9 n.c. n.c. n.c.
handbook, halfpage
5
1
96
MGW310
Fig.3 D-sub interface connector.
6.4 Power supply connector
The inner pin of the DC supply connector (see Fig.4) has
to be connected to positive voltage and the outer one has
to be connected to ground. The connection is fail save.
handbook, halfpage
ground
Fig.2 Pin and connector assignment.
supply voltage
MGU480
Fig.4 DC power supply connector.
2001 Oct 04
5