TMS37134 Datasheet, PDF (1/1 Pages) Texas Instruments – Entry Transponder IC

RADIO FREQUENCY IDENTIFICATION SYSTEMS
Entry Transponder IC
TMS37134
The Entry Transponder (ET) IC combines the proven TI DST+
transponder with a sophisticated power management; it has an
SPI interface to connect it to an external micro-controller, ideally
suited for Remote Keyless Entry applications for automotive.
The embedded DST+ transponder offers a high level of security
through its encryption, mutual authentication and after-theft
diagnosis features; it operates without battery. The power
management features battery charge and battery check
functions, which can be used for charging of the battery through
the transponder LF field.
Base station
in the car
UHF
receiver
Control
Unit
LF Trans-
ceiver
LF
Identification
device
UHF
µC
Specifications:
Part Number
Features
Supply Voltage
Current consumption
Transponder
Transmission Principle
Operating Frequency
Modulation Downlink (to the TRP)
Security
Encryption, Mutual Authentication, Issuer Key
Encryption response (signature)
Modulation Downlink (to the TRP)
Datarate Downlink
EEPROM Memory
Read Time for an Encryption
Activation Field Strength
Operating Temperature
Storage Temperature
Package
TMS 37134
Immobilizer plus power management
Immobilizer compatible to DST+ (E9WK )
Battery Check / Charge function
1.8 … 3.6 V
100µA (max.) @3V
HDX (Half Duplex), FDX ( Full Duplex using amplitude Modulation)
134.2 kHz
100% AM, Bit Coding PWM or PPM
TI Challenge/Response, Mutual Authentication, Secure Issuer Access Mode
Each 40 bit
24 bit
100% AM, Bit Coding PWM or PPM
PWM: typ. 1,3kBit / PPM: typ. 2kBit
127Byte (lockable) for User data, 25Byte for Encryption Keys, serial#,
< 12fi0 msti
137.5dBµA/m
-40 to +85°C
-40 to +125°C
20 Pin TSSOP PW
For more information, contact the sales office or distributor nearest you. This contact information can be found
on our web site at:
http://www.ti-rfid.com
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© Copyright 2002 Texas Instruments Incorporated.
Data Sheet: 11-07-22-007 11/03