SJA1124BHG中文资料Quad LIN master transceiver with LIN master controller数据手册恩XP规格书

描述 Description

The SJA1124 is a quad Local Interconnect Network (LIN) master channel device. Each of the four channels contains a LIN master controller and LIN transceiver with master termination. LIN master frames are transferred to the physical LIN bus via the LINphysical layer.
The SJA1124 is primarily intended for in-vehicle subnetworks usingbaud rates up to 20 kBd and is compliant with LIN 2.0, LIN 2.1, LIN 2.2, LIN 2.2A, ISO 17987-4:2016(12 V LIN) and SAE J2602-1.
A Serial Peripheral Interface (SPI) and an interrupt output provide the interface between the SJA1124 and a microcontroller

特性 Features

General
• Four LIN master channels:
• LIN master controller
• LIN transceiver
• LIN master termination consisting of a diode and a pull-up resistor.
• Very low current consumption in Low Power mode with wake-up via SPI or LIN
• Option to control an external voltage regulator via the INHN output
• Bus signal shaping optimized for baud rates up to 20 kBd
• SPI for communicating with the microcontroller:
• SPI used for configuration, control, diagnosis and LIN data transfer
• Flexible SPI length from 3 bytes to 18 bytes
• Output status pin signals SPI operational state
• Interrupt output pin: interrupts can be configured individually
• Facilitates synchronous LIN frame transmission across multiple SJA1124 devices
• VIO input for direct interfacing with 3.3 V and 5 V microcontrollers
LIN master controllers
• Independent per LIN channel:
• Baud rate
• Operating mode
• Status and interrupt
• Complete LIN frame handling and transfer
• One interrupt per LIN frame
• Slave response timeout detection
• Programmable break length
• Automatic sync field generation
• Programmable stop bit length
• Hardware parity generation
• Hardware or software checksum generation
• Fault confinement
• The fractional baud rate generator
Protection
• Excellent ElectroMagnetic Immunity (EMI)
• Very high ESD robustness: ±6 kV according to IEC61000-4-2 for pins LIN1 to LIN4 and BAT
• The bus terminal and battery pin protected against transients in the automotive environment (ISO 7637)
• LIN dominant timeout function
• Thermal protection
Standards/Certifications
• LIN 2.0, LIN 2.1, LIN 2.2, LIN 2.2A
• ISO 17987-3:2016, ISO 17987-4:2016 (12 V LIN)
• SAE J2602-1
Product Longevity Program
• SJA1124 is included in the Product Longevity Program for 15 years from product launch. Please visit the Product Longevity Page for more information.

应用 Application

Automotive

• Ambient mood lighting

• Body control

• HVAC

• Park assist