电动车控制器中集成电路7842是什么作用

控制器中集成电路7842是三端稳压块稳定输出电压为42伏

The mPD784214A, 784215A, 784216A, 784217A, and 784218A are products of the mPD784216A/784218A
Subseries in the 78K/IV Series. Besides a high-speed and high performance CPU, these controllers have ROM,
RAM, I/O ports, 8-bit resolution A/D and D/A converters, timers, serial interfaces, a real-time output port, interrupt
functions, and various other peripheral hardware.
The mPD784214AY, 784215AY, 784216AY, 784217AY, and 784218AY are based on the mPD784216Y/784218Y
Subseries with the addition of a multimaster-supporting I2C bus interface.
The mPD78F4218A and 78F4218AY, products with a flash memory instead of the internal ROM of mask ROM
versions, and various development tools are also available.