Dual-channel chip MAX232 level conversion solution verification version

**This project is used to verify the solution verification board design of the Lichuang Mall level conversion chip RS232 ([Mall No. C158068](https://item.szlcsc.com/169416.html))** - - - MAX232 chip is MAXIM is a single power supply level conversion chip specially designed for [RS-232](https://baike.baidu.com/item/RS-232) standard serial port, using a +5v single power supply. The device is particularly suitable for battery-powered systems because its low-power shutdown mode can reduce power consumption to less than 5uW. The MAX225, MAX233, MAX235, and MAX245/MAX246/MAX247 require no external components and are recommended for applications where printed circuit board area is limited. The MAX220–MAX249 series line drivers/receivers are specially designed for EIA/TIA-232E and V.28/V.24 communication interfaces, especially for applications where ±12V power supply cannot be provided. - - - 1. Comply with all [RS-232C](https://baike.baidu.com/item/RS-232C) technical standards 2. Only requires a single +5V power supply 3. The on-chip charge pump has a boost function , Voltage polarity reversal capability, able to generate +10V and -10V voltages V+, V- 4. Low power consumption, typical supply current 5mA 5. Internally integrated 2 RS-232C drivers 6. High integration, the lowest off-chip Requires 4 capacitors to work. 7. Two RS-232C receivers integrated internally