uja1023 NXP Semiconductors, uja1023 Datasheet - Page 34

• Manufacturer Part Number: uja1023
• Description: Uja1023 Lin-i/o Slave
• Manufacturer: NXP Semiconductors

Philips Semiconductors
UJA1023_4
Product data sheet
7.4 Configuration pins C1 to C3
7.5 LIN transceiver
The structure of the configuration pins C1 to C3 (Cx) is shown in
a pull-up to the battery. The pull-up is switched on during node address configuration only.
In all other cases the Cx have high-impedance behavior.
In order to have a safety margin against ground shift the input threshold of the
configuration pins is about 0.5
In addition the configuration pin C3 has a low-side driver to provide the output signal
during daisy chain ID configuration.
The integrated LIN transceiver of the UJA1023 is compliant with LIN 2.0 / SAE J2602 and
provides:
Fig 11. INH structure
Fig 12. Configuration pin structure
•
•
•
Integrated 30 k termination resistor
Internal LIN-termination switch (RTLIN)
Disabling of termination switch during a short-circuit from LIN to GND
ADC mode
output
Rev. 04 — 5 July 2006
FF
FF
Cx
V
BAT
.
V
0.5V
BAT
configuration on/off
BAT
&
&
&
VIO
Cx input
Cx output
001aad492
R
R
on(INH2)
on(INH2)
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
BAT
R on(INH1)
Figure
INH
mdb499
UJA1023
12. Each pin has
LIN-I/O slave
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