ATSAM4SA16B
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Core
Cortex-M4, 120 MHz
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Family
SAM4 Series
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Sub-Family
SAM4S
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CMSIS Pack
SAM4_DFP 
Based on the powerful ARM Cortex-M4 core, the Micochip SAM4S series extends the Microchip Cortex-M portfolio to offer:
 - Increased performance and power efficiency
 - Higher memory densities: up to 2MB of Flash and 160KB of SRAM
 - And a rich peripheral set for connectivity, system control and analog interfacing.
| Core | 
           Processor Cortex-M4  | 
      
    
|---|---|
| Maximum Clock Frequency | 120 MHz | 
| Memory Protection Unit | MPU | 
| Floating Point Unit | NO_FPU | 
| Trust Zone | |
| Digital Signal Processor | |
| CortexM Vector Extensions | |
| Endian | Little-endian | 
| Features | View features | 
Processor
Cortex-M4, 120 MHz
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I/O IO Pins 47 IO Pins External Interrupts 47 External Interrupts Analog to Digital Converter 11-channel x 12-bit Analog to Digital Converter Digital to Analog Converter 2 x 12-bit Digital to Analog Converter Other Analog Feature 1 x Other Analog Feature Temperature Sensor 1 x Temperature Sensor  - 
      
Communication High Speed MCI 1 x High Speed MCI Universal Serial Bus Device 1 x Universal Serial Bus Device Serial Peripheral Interface 3 x 0 bit/s Serial Peripheral Interface Inter-Integrated Circuit 2 x Inter-Integrated Circuit Universal Asynchronous Receiver Transmitter 4 x 0 bit/s Universal Asynchronous Receiver Transmitter SSC Interface 1 x SSC Interface Secure Digital Input Output 1-bit Secure Digital Input Output  - 
      
Timer Timer Counter Channels 6-bit Timer Counter Channels Pulse Width Modulation 4-bit Pulse Width Modulation  - 
      
Clock Real Time Clock 1 Hz .. 32.77 kHz Real Time Clock