PCF7991AT/1081/M,1

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
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
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.
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.