The NuMicro® M4521 USB series 32-bit microcontroller (MCU) is embedded with the ARM® Cortex®-M4 core and operating at 2.5V ~ 5.5V and -40℃ ~ 105℃, and provides 22.1184 MHz internal oscillator (1% accuracy at 25℃, 5V) , Data Flash configurable and high immunity (8KV ESD, 4KV EFT) . Package types include LQFP48 and LQFP64.
Target Application:
Industrial Automation, Inverters, Uninterruptible Power Supply(UPS), Home Automation, USB Accessories, Smart Card Reader, Motor Control, etc.
Key Features:
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Core |
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ARM® Cortex®-M4 with DSP and FPU |
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Max frequency of 72 MHz |
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Operating voltage: 2.5V to 5.5V |
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Temperature range: -40℃ ~ 105℃ |
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Memory |
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128 KB of Flash Memory |
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32 KB of SRAM |
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Data Flash configurable |
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12-bit ADC (up to 10 channels) |
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16-bit PWM (up to 10 channels) |
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Timers |
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4 sets of 32-bit timers |
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RTC |
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Connectivity |
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USB 2.0 FS Host/Device |
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USB 2.0 FS Crystal-less at Device mode |
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Up to 3 UARTs |
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Up to 2 SPIs (1xSPI + 1xQSPI) |
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Up to 2 I²Cs (up to 1 MHz) |
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Smart card interfaces |
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Security |
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CRC engine |
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Tamper Detection |
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Flash Security Lock |
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Clock Control |
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4 to 24 MHz external crystal oscillator |
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32.768 kHz crystal oscillator |
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22.1184 MHz internal RC oscillator |
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10 kHz internal RC oscillator |
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For more details and documents, please link to Nuvoton Official Website GO