ATSAM3N4C
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Core
Cortex-M3, 48 MHz
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Family
SAM3 Series
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Sub-Family
ATSAM3N
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CMSIS Pack
SAM3_DFP 
The Microchip | SMART SAM3N ARM Cortex M3-based series combines a high-performance architecture, peripherals and power–saving techniques to deliver uncompromised performance.
Available in multiple memory densities, pin counts and package types, the SAM3N offers a scalable solution to meet application requirements.
It is supported by a full set of software libraries, project examples, tools and a worldwide ecosystem to shorten development cycle time.
Pin-to-pin compatible with the SAM7S and the SAM3S, the SAM3N facilitates migration within the family.
| Core | 
           Processor Cortex-M3  | 
      
    
|---|---|
| Maximum Clock Frequency | 48 MHz | 
| Memory Protection Unit | NO_MPU | 
| Floating Point Unit | NO_FPU | 
| Trust Zone | |
| Digital Signal Processor | |
| CortexM Vector Extensions | |
| Endian | Little-endian | 
| Features | View features | 
Processor
Cortex-M3, 48 MHz
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Controls Number of Touch Channels 32 x Number of Touch Channels  - 
      
I/O IO Pins 79 IO Pins External Interrupts 79 External Interrupts Analog to Digital Converter 16-channel x 10-bit Analog to Digital Converter Digital to Analog Converter 1 x 10-bit Digital to Analog Converter  - 
      
Other Quadrature Decoder Channels 2 x Quadrature Decoder Channels  - 
      
Communication Serial Peripheral Interface 3 x 0 bit/s Serial Peripheral Interface Universal Asynchronous Receiver Transmitter 4 x 0 bit/s Universal Asynchronous Receiver Transmitter Inter-Integrated Circuit 2 x Inter-Integrated Circuit  - 
      
Timer Output Compare channels 18 x Output Compare channels Input Capture Channels 1 x Input Capture Channels Timer/Counter 6-bit Timer/Counter Pulse Width Modulation 4-bit Pulse Width Modulation  - 
      
Clock Real Time Clock 1 Hz .. 32.77 kHz Real Time Clock