Nuvoton NuMicro®ML54 Low Power LCD Microcontrollers

Nuvoton NuMicro®ML54 series is an low-power microcontroller, based on 1T 8051 core, embedded 64 KB flash and 4 KB SRAM, built-in LCD driver, running up-to 24 MHz. For low power operation, it runs less than 100 µA/MHz in normal run mode, and power down current is below 2 µA with LCD panel display on. The ML54 series operates from 1.8V to 3.6V and-40°C to 105°C.

 

NuMicro® ML54 series builts in 4 COM x 32 SEG, 6 COM x 30 SEG, 8 COM x 28 SEG LCD controller to drive up to 224 dots, and supports the Type-A and Type-B LCD panel. It provides two V_LCD input sources, one is external voltage, and another is internal charge pump, The internal charge pump keeps the V_LCD constant voltage to maintain the display quality of the LCD panel while V_DD input changes. There are two V_LCD driving modes, external capacitor mode and internal resistor mode. The external capacitor mode with strong driving current to support large size panel; the internal resistor mode drives small size panel and reduces power consumption.

 

NuMicro® ML54 series features CRC、38.4 kHz and Peripheral Direct Memory Access(PDMA) controller to speed-up the data transfer and off-load the CPU loading for low-power operation. 

 

NuMicro® ML54 series is more than a 8-bit microcontroller, which equipped with enhenced analog features, such as 12-bit 500k SPS ADC, up to 2ch of comparators , 4-level of internal voltage reference for ADC and ACMP; the ML54 series built-in RTC to record data and show calendar while in power-down mode, it also provides three packages: LQFP 44, LQFP48, and LQFP64 with pin-compatible to NuMicro 32-bit microcontrollers to simplify the system design and change parts easily.