说明：  LED 驱动手册 TM1640; 内部集成有MCU 数字接口、数据锁存器、LED 驱动等电路。本产品性能优良，质量可靠。主要应用于电子产品LED显示屏驱动。采用SOP28的封装形式
(LED driver manual TM1640; the internal integration of MCU digital interface, data latch, LED driver circuit. The product has excellent performance and reliable quality. Mainly used in electronic products LED display driver. SOP28 package)