HT1632 is a memory mapping LED display controller/driver, which can select numbers of output bits and commons (32 output bits & 8 common and 24 output bits & 16 common). It can support 16-gradation LED for each output bit by PWM method with soft instruction. Serial interface is common and convenient for command mode and data mode. Only three or four lines are required for the interface between the host controller and the HT1632. User can extend display by Cascade HT1632 for wide application.
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