NUC123ZC2AN1
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            CoreCortex-M0, 72 MHz 
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            FamilyNuMicro M0 Family 
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            Sub-FamilyNUC123 
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          CMSIS PackNuMicroM0_DFP
The NuMicro NUC123 series 32-bit microcontrollers are embedded with Cortex-M0 core running up to 72 MHz, up to 36K/68K-byte embedded flash,
12K/20K-byte embedded SRAM, and 4K-byte loader ROM for the ISP. It also integrates Timers, Watchdog Timer, Windowed Watchdog Timer, PDMA with CRC calculation unit,
UART, SPI/MICROWIRE, I2C, I2S, PWM Timer, GPIO, PS/2, USB 2.0 FS Device, 10-bit ADC, Low Voltage Reset Controller and Brown-out Detector.
| Core | Processor Cortex-M0 | 
|---|---|
| Maximum Clock Frequency | 72 MHz | 
| Memory Protection Unit | |
| Floating Point Unit | |
| Trust Zone | |
| Digital Signal Processor | |
| CortexM Vector Extensions | |
| Endian | |
| Features | View features | 
Processor
Cortex-M0, 72 MHz
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      I/O IO Pins 20 IO Pins 
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      Timer Timer/Counter 4 x 32-bit Timer/Counter Pulse Width Modulation 2 x 16-bit Pulse Width Modulation 
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      Communication Universal Asynchronous Receiver Transmitter 1 x 0 bit/s Universal Asynchronous Receiver Transmitter Serial Peripheral Interface 3 x 0 bit/s Serial Peripheral Interface Inter-Integrated Circuit 1 x Inter-Integrated Circuit Universal Serial Bus Device 1 x Universal Serial Bus Device Inter-IC Sound 1 x Inter-IC Sound 
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      Package Quad Flat No-Lead 33-pad Quad Flat No-Lead