UJA1023 Datasheet – Local Interconnect Network I/O Slave

Part Number: UJA1023

Function: Local Interconnect Network (LIN) I/O Slave

Package: SO16 Type

Manufacturer: NXP Semiconductors.


UJA1023 datasheet



The UJA1023 is a stand-alone Local Interconnect Network (LIN) I/O slave that replaces basic components commonly used in electronic control units for input and output handling.

The UJA1023 contains a LIN 2.0 controller, an integrated LIN transceiver which is LIN 2.0 / SAE J2602 compliant and LIN 1.3 compatible, a 30 kΩtermination resistor necessary for LIN-slaves, and eight I/O ports which are configurable via the LIN bus.

An automatic bit rate synchronization circuit adapts to any (master) bit rate between 1 kbit/s and 20 kbit/s. For this, an oscillator isintegrated.

The LIN protocol will be handled autonomously and both Node Address (NAD) and LIN frame Identifier (ID) programming will be done by a master request and an optional slave response message in combination with a daisy chain or plug coding function.


1. Automatic bit rate synchronization to any (master) bit rate between 1 kbit/s and 20 kbit/s

2. Integrated LIN 2.0 / SAE J2602 transceiver (including 30 kΩ termination resistor)

3.  Eight bidirectional I/O pins

4. Outputs configurable as high-side and/or low-side driver and as cyclic or PWM driver

5. Advanced low-power behavior

6. Node Address (NAD) configuration via daisy chain or plug coding

7. Inputs supporting local wake-up and edge capturing

8. Limp home configuration in case of error conditions

9. High immunity against electromagnetic interference



UJA1023 Datasheet PDF Download

UJA1023 pdf

Other data sheets are available within the file: UJA-1023, UJA1023T/2R04, UJA1023T/2R04/C