Automotive chips play a crucial role in automotive electronic systems, controlling various functions and systems of vehicles. Here are some common automotive chip part numbers:

1. TMS320F28335PGFA: This is a C2000™ 32-bit MCU (Micro controller Unit) from TI (Texas Instruments). It finds wide applications in industrial motor drives, photovoltaic inverters and digital power, electric vehicles and transportation, motor control, as well as sensing and signal processing.

2. S32K series: The S32K series from NXP is a 32-bit ARM Cortex-M4F micro controller designed for automotive applications. It can handle complex algorithms and computations while offering low power consumption and high efficiency.

3. MPC57xx series: Another automotive chip from NXP, the MPC57xx series is a 32-bit Power Architecture micro controller suitable for automotive control systems. It boasts high reliability, performance, and security features.

4. LPC546xx series: Also from NXP, the LPC546xx series is a 32-bit ARM Cortex-M4F micro controller designed for automotive applications. It features high performance and low power consumption, capable of handling complex algorithms and computations.

5. SAF775x series: This is NXP's automotive audio processor, known for its high performance and low power consumption. It can handle various audio signals including radio, CD, MP3, etc.

6. TJA1043 series: This is NXP's automotive network interface chip, characterized by high speed and reliability. It can connect to various automotive networks including CAN, LIN, and FlexRay.

7. VNH7040AYTR: This is an automotive-grade fully integrated H-bridge motor driver, integrating dual high-side drivers and two low-side switches, used in a wide range of automotive applications.

Additionally, there are other automotive chip part numbers such as AUIRS1170STR, VNQ7050AJTR, TPS7B7702, TPS7A6650, etc., each with specific applications in the automotive field.

Please note that these are just some of the part numbers for automotive chips. In reality, there is a wide variety of automotive chips covering various types from micro controllers, sensors, power semiconductors to security chips, and more. With the continuous development of automotive technology, new automotive chips are constantly emerging.

When it comes to determining which chip is cheaper and offers better value for money, it depends on several factors including the specifications, functionality, application areas, market demand, and supply conditions. For example, the TMS320F28335PGFA is widely used and may perform well in terms of cost-effectiveness due to its broad application and relatively mature technology. However, the specific price may vary depending on market supply and demand and the quantity purchased.

On the other hand, micro controller chips like the S32K series, MPC57xx series, and LPC546xx series also offer good value for money due to their high performance, low power consumption, and reliable security features, suitable for various automotive applications. However, the prices of these chips may also vary depending on the model and specifications.

For other types of automotive chips such as network interface chips (like the TJA1043 series) and motor drivers (like the VNH7040AYTR), they each have specific functions and applications, and prices may vary depending on the specific model and application scenario.

Therefore, determining which automotive chip is cheaper and offers better value for money requires considering specific application requirements, budget constraints, and market supply conditions. When selecting automotive chips, it is advisable to consult with professional chip suppliers or automotive electronic system manufacturers to obtain more detailed information and professional advice.

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