For body electronics and power management systems, high-performance microcontrollers offer the potential for demanding precision control and intelligence for today's automotive electronics designs from a safety and chassis perspective. Mixed-signal microcontrollers are being used in more automotive electronic system designs, reducing the design difficulty of the entire system, reducing the number of components and the size of the printed board.
This article refers to the address: http://
8-bit mixed-signal microcontroller
A range of methods are available to make automotive electronic systems simple. By integrating a large number of peripherals and communication protocols, such as CAN and LIN buses, mixed-signal microcontrollers minimize peripheral components. Now enhanced 8
A mixed-signal microcontroller that increases processing speed, reduces memory size, and extends accurate analog peripherals. In addition, such large-scale integration is done in the smallest possible package because of automotive electronics.
The application space is usually very limited, such as door and window lifts, door locks, and engine control sensors.
While reducing the size of the printed board, on-chip integration can reduce component costs, and mixed-signal microcontrollers can reduce the number of peripheral components required, such as voltage reference sources, rectifier components, and signal generators. Number of components
The reduction in the amount of the entire system is also smaller, which improves the reliability of the entire system to a greater extent, because the more components, the more fragile the reliability.
Core Technology provides C8051F58x
A good example is a serial mixed-signal microcontroller. This microcontroller provides a large number of on-chip peripherals, such as high-precision oscillators, high-precision voltage reference, and 5V rectifier modules.
The quasi-characteristics eliminate the need for calibration sensors on the periphery, the high-speed core reduces memory requirements, and the innovative IO distribution system reduces production and test costs to varying degrees.
Provides up to 128KB of flash and 50MPIS processing power on a 25mm2 package, F
The 58x family combines capacity, performance, and small package to provide a small, compact solution for automotive electronics engineers. F58x automotive-grade microcontrollers provide an accuracy of -40 to 125 degrees
With an internal oscillator of +-0.5%, the designer can further increase the accuracy to +-0.25% by using an internal ADC and temperature sensor. If the same effect is to be achieved, an external oscillator will cost an additional $0.2. This high precision allows high-speed CAN and LIN buses to be operated without the need for an external clock, reducing costs while increasing system reliability.
Another unique feature is that the ADC has a proportional gain setting that scales down the input voltage, allowing the full range of output to be used within the reference voltage range.
The 58X's high-speed serial bus also provides convenience for designers, such as the built-in high-speed CAN2.0 core that provides 32 independent messages.
The buffer enables the entire system to handle busy network communications, and by using the built-in LIN2.1 controller, automotive electronics engineers can further improve network performance. Built-in 8byte
The message buffer enables hardware synchronization and generate checksums, which saves limited CPU resources and makes more complex LIN topologies possible.
Flexible design is important for automotive electronics engineers. In general, fixed pins provided by the microcontroller allow designers to deploy only in accordance with existing resources, while mixed-signal microcontrollers provide a programmable IO distribution system.
With CORSSBAR, users can easily assign the corresponding peripheral IO to the available pins, which greatly simplifies the system design and increases resources. For example, the designer can have 2 independent channels when the system is running.
The vertical LIN bus redistributes the pins, which reduces system cost and increases design flexibility.
Further in design, a digital isolator makes the CAN physical layer and MCU
The CAN bus is isolated, which further increases the anti-interference ability of the MCU in the automotive system, and also eliminates the influence of the ground loop on the CAN and LIN networks. This is a good choice in an electrical noise environment.
select. In hybrid and pure electric vehicles, digital isolation is also needed. Isolation is integrated into each high-voltage module to provide a channel between communication and high-voltage control, such as battery module management, start-stop system, EPS system, and so on.
100G QSFP28 Fiber Optic Transceiver , 100G QSFP28 Fiber Optic Receiver
Chengdu Xinruixin Optical Communication Technology Co.,Ltd , https://www.xrxoptic.com