NXP immobilizer system solutions

NXP immobilizer system
solutions
Reduced system cost for high-security
immobilizer designs
NXP’s leading portfolio for immobilizer system includes a full range of security options for the transponder
side, perfectly complemented by advanced basestation solutions.
PCF7938 features
} Immobilizer transponder with 96-bit secret key
} 448 Byte of EEPROM with versatile access configuration
options
Benefits
} Easy migration from PCF7936/37
} High security
} Fast authentication time
The NXP PCF7938, an immobilizer transponder for advanced
security, builds on the success of the field-proven PCF7936/37
and PCF7939 (AES-128-Bit). It offers advanced security with a
96-bit secret key, enabling an easy migration path for customers
using the PCF7936. It offers more memory to store user data,
with versatile access configuration options. As with other NXP
immobilizer transponders, NXP offers keyless entry/go and
remote keyless entry solutions fully compatible to PCF7938.
ABIC2 features
} Fully integrated single-chip basestation (PJF7992, PJF7993)
} High-performance adaptive sampling time AM/PM
demodulator
} Integrated voltage regulator with wide supply-voltage range
(5.6 to 27 V)
} Antenna driver with wave shaping for improved spectral purity
} Serial interface featuring SPI and single-wire operation
} Integrated LIN 2.0/SAE J2602 transceiver
(compatible with LIN 1.3)
} LIN 2.0-tolerant protocol optimized for reliable transponder
data handling
} Buffered communication via single wire interface possible for
easier system design
} Watchdog and Power On Reset functions
} Temperature sensor to protect the device against overheating
} 20-pin Heatsink TSSOP (HTSSOP) package
Benefits
} Reduced system cost through high level of integration
} Facilitated system design and shorter time to market
} Low power consumption
The NXP ABIC2 (PJF7992) is a next-generation immobilizer
basestation with a high level of integration. It provides read and
write access to an identification transponder. It offers a number
of enhancements over the ABIC (PCF7991), including an
on-chip voltage regulator and single-wire communication using
the integrated LIN Transceiver
microcontroller at the basestation obsolete by integrating
a single-wire protocol that is LIN “tolerant” and does not
influence or affect further LIN slaves in the same LIN network.
An external microcontroller can be added to implement another
protocol layer, such as LIN 2.0. For this kind of application the
ABIC2 derivative PJF7993 is offered.
Bidirectional communication with the device uses a serial
interface that operates in SPI or single-wire fashion, according
to the application needs. ABIC2 makes an external
The ABIC2 IC is optimized for easy application, featuring a high
level of integration in a small HTSSOP20 package and requiring
very few external components.
Immobilizer transponder in NXP’s stick package
Next-generation immobilizer basestation with high level of integration
6 ... 27 V
VBAT
22 μF
VB
V-REG 1
AND
TEMP
SENSOR
TX2
RX
RSTN
XTAL
XTAL
PJF7992
VRC1
TX1
VRC2
DRIVER
AND
WAVE
SHAPER
DIVIDER
LP FILTER
VSS
V-REG 2
XTO
OSC
XCLK BUFFER
RESET
MODULATION
PULSE GEN.
CLOCK DIVIDER
WATCH DOG
CONTROL UNIT
BPLM AND MANCHESTER CODEC
SERIAL
INTERFACE
(SPI)
LIN
TRANSCEIVER
RX
SYNCHRON
DEMODULATOR
SC FILTER
AMPLIFIER
LIN
REGISTER
TX
VSS
brb381
www.nxp.com
© 2012 NXP Semiconductors N.V.
All rights reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The
Date of release: April 2012
information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and
Document order number: 9397 750 17270
may be changed without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof
Printed in the Netherlands
does not convey nor imply any license under patent- or other industrial or intellectual property rights.