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UJA1023

NXP
Part Number UJA1023
Manufacturer NXP
Description LIN-I/O slave
Published Jun 8, 2010
Detailed Description UJA1023 LIN-I/O slave Rev. 5 — 17 August 2010 Product data sheet 1. General description The UJA1023 is a stand-alone L...
Datasheet PDF File UJA1023 PDF File

UJA1023
UJA1023

Overview
UJA1023 LIN-I/O slave Rev.
5 — 17 August 2010 Product data sheet 1.
General description 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 kΩ termination 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 is integrated.
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.
The eight bidirectional I/O pins are configurable via LIN bus messages and can have the following functions: • Input: – Standard input pin – Local wake-up – Edge capturing on falling, rising or both edges – Analog input pin – Switch matrix (in combination with output pins) • Output: – Standard output pin as high-side driver, low-side driver or push-pull driver – Cyclic sense mode for local wake-up – Pulse Width Modulation (PWM) mode; for example, for back light illumination – Switch matrix (in combination with input pins) On entering a low-power mode it is possible to hold the last output state or to change over to a user programmable output state.
In case of a failure (e.
g.
LIN bus short to ground) the output changes over to a user programmable limp home output state and the low-power Limp home mode will be entered.
Due to the advanced low-power behavior the power consumption of the UJA1023 in low-power mode is minimal.
NXP Semiconductors UJA1023 LIN-I/O slave 2.
Features and benefits „ Automatic bit rate synchronization to any (master) bit rate between 1 kbit/s and ...


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