CXPI Transceivers
Low-noise, automotive-grade Clock Extension Peripheral Interface (CXPI) transceivers
Clock Extension Peripheral Interface (CXPI) is designed to succeed in the widely-used Local Interconnect Network (LIN) automotive communication protocol. CXPI reduces BOM costs and lower fuel consumption by requiring fewer wire harnesses in a vehicle. Infineon offers CXPI transceivers, as well as automotive MCUs – a complete solution for your automotive design needs.
- JASO-, SAE-, ISO-CXPI-compliant
- Supports 2.4 to 20 kbps bitrate
- Wave shaping for low EMI
- Operating voltage 5.3 V to 18 V
Clock Extension Peripheral Interface
CXPI has the CSMA/CR system (event initiate system) built into the polling system of LIN, provides higher response time and scalability, and significantly reduces HMI and development costs.
CXPI has reduced the number of parts needed for the clock side of the design because data and a clock can transmit at the same time by the adoption of PWM. Furthermore, reliability improves through communication between slaves, a secondary clock master function, and a CRC.
S6BT112A01 and S6BT112A02 characteristics
S6BT112A01 and S6BT112A02 are integrated transceiver IC for automotive communication networks with Clock Extension Peripheral Interface (CXPI). It is a flexible bit rate from 2.4 kbps to 20 kbps with JASO and CXPI-compliant. This CXPI transceiver IC connects between the CXPI data link controller and the CXPI bus line, and enables it to connect to vehicle battery directly, with high surge protection. Additionally, a product has an optional function for Spreads Spectrum Clock Generator (SSCG). In the standby operation, S6BT112A01 and S6BT112A02 succeed in ultra-low-power consumption in sleep mode. The Infineon CXPI transceiver IC supports the master and slave nodes as the selected SELMS pin which supported a secondary clock master.
Best-in-class low-noise by a generating pseudo sine wave
Infineon's CXPI transceivers achieved best-in-class low-noise by generating pseudo sine waves, a smart key band (100 kHz to 160 kHz) noise reduction, and Spreads Spectrum Clock Generator (SSCG), option. It supports reducing the customer’s PCB design effort that is necessary to consider the effect of emission. Also, it becomes an advantage especially when a wiring is bundled.
Robustness for automotive request and improvement in energy efficiency
Supports an ESD HBM 8 kV and a bus negative breakdown voltage of -40 V, and also, supports robustness firmly for automotive requests. In addition, Infineon's CXPI transceiver operating voltage range is 5.3 V to 18 V and it has a wide operating range. It will be an advantage when a battery voltage falls. Infineon's CXPI transceiver realized a sleep current of 6 uA (typical) at slave and supports a wake-up control function. It will contribute to the improvement in the energy efficiency of a vehicle.
Package solution and software implementation
Infineon can provide package solutions together with CXPI transceivers, MCUs, and driver software. Also, we can provide a software implementation commissioned development services.
