M251FB2AE
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            CoreCortex-M23, 48 MHz 
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            FamilyNuMicro M23 Family 
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            Sub-FamilyM251 
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          CMSIS PackNuMicroM23_DFP
The NuMicro M251 series is a 32-bit microcontroller with embedded ARM Cortex-M23 core.
| Core | Processor Cortex-M23 | 
|---|---|
| Maximum Clock Frequency | 48 MHz | 
| Memory Protection Unit | |
| Floating Point Unit | |
| Trust Zone | |
| Digital Signal Processor | |
| CortexM Vector Extensions | |
| Endian | |
| Features | View features | 
Processor
Cortex-M23, 48 MHz
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      I/O IO Pins 15 IO Pins Analog to Digital Converter 7-channel x 12-bit Analog to Digital Converter 
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      Timer Timer/Counter 4 x 32-bit Timer/Counter Pulse Width Modulation 9 x 16-bit Pulse Width Modulation 
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      Communication Universal Asynchronous Receiver Transmitter 2 x 0 bit/s Universal Asynchronous Receiver Transmitter Inter-Integrated Circuit 2 x Inter-Integrated Circuit 
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      Package Small Outline Package 20-lead Small Outline Package