LED 驱动控制/键盘扫描专用集成电路 TM1650 特性描述 TM1650 是一种带键盘扫描接口的 LED （发光二极管显示器） 驱动控制专用电路。 内部集成有 MCU 输入输出控制数字接口、数据锁存器、LED 驱动、键盘扫描、辉度调节等电路。TM1650 性能稳定、质 量可靠、抗干扰能力强，可适用于 24 小时长�

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