ATSAM3N4CA-AU Datasheet
Embedded - Microcontrollers, Integrated Circuits (ICs), IC MCU 32BIT 256KB FLASH
Download: ATSAM3N4CA-AU Datasheet 
ATSAM3N4CA-AU
Embedded - Microcontrollers, Integrated Circuits (ICs), IC MCU 32BIT 256KB FLASH
FEATURES
Core - Arm Cortex -m3 Revision 2.0 Running At Up To 48 Mhz - Thumb -2 Instruction - 24-bit Systick
Counter - Nested Vector Interrupt Controller
Pin-to-pin Compatible With Sam7s Legacy Products (48- And 64-pin Versions) And Sam3s (48-, 64- And
100-pin versions)
Memories - From 16 To 256 Kbytes Embedded Flash, 128-bit Wide Access, Memory Accelerator, Single
Plane - From 4 To 24 Kbytes Embedded Sram - 16 Kbytes Rom With Embedded Bootloader Routines (uart)
and IAP routines
System - Embedded Voltage Regulator For Single Supply Operation - Power-on-reset (por), Brown-out
Detector (bod) And Watchdog For Safe Operation - Quartz Or Ceramic Resonator Oscillators: 3 To 20
Mhz Main Power With Failure Detection And Optional Low Power 32.768 Khz For Rtc Or Device Clock -
High Precision 8/12 Mhz Factory Trimmed Internal Rc Oscillator With 4 Mhz Default Frequency For
device startup. In-
Application Trimming Access For Frequency Adjustment - Slow Clock Internal Rc Oscillator As
Permanent Low-power Mode Device Clock - One Pll Up To 130 Mhz For Device Clock - Up To 10 Peripheral
DMA (PDC) channels
Low Power Modes - Sleep And Backup Modes, Down To 3 A In Backup Mode - Ultra Low Power Rtc
Peripherals - Up To 2 Usarts With Rs-485 And Spi Mode Support. One Usart (usart0) Has Iso7816, Irda
And Pdc Support In Addition - Two 2-wire Uarts - 2 Two Wire Interface (i2c Compatible), 1 Spi - Up
To 6 Three-channel 16-bit Timer/counter With Capture, Waveform, Compare And Pwm Mode. Quadrature
Decoder Logic And 2-bit Gray Up/down Counter For Stepper Motor - 4-channel 16-bit Pwm - 32-bit
Real-time Timer and RTC with calendar and alarm
FEATURES - Up to 16 channels, 384 KSPS 10-bit ADC - One 500 KSPS 10-bit DAC
I/o - Up To 79 I/o Lines With External Interrupt Capability (edge Or Level Sensitivity), Debouncing,
Glitch Filtering And On-die Series Resistor Termination - Three 32-bit Parallel Input/output
Controllers
Packages - 100-lead Lqfp, 14 X 14 Mm, Pitch 0.5 Mm/100-ball Tfbga, 9 X 9 Mm, Pitch 0.8 Mm - 64-lead
Lqfp, 10 X 10 Mm, Pitch 0.5 Mm/64-pad Qfn 9x9 Mm, Pitch 0.5 Mm - 48-lead Lqfp, 7 X 7 Mm, Pitch 0.5
mm/48-pad QFN 7x7 mm, pitch 0.5 mm
AT91SAM ARM-based Flash MCU
ATSAM3N Series
11011B-ATARM-21-Feb-12
1. SAM3N
Description
Atmel's Sam3n Series Is A Member Of A Family Of Flash Microcontrollers Based On The High Performance
32-bit Arm Cortex-m3 Risc Processor. It Operates At A Maximum Speed Of 48 Mhz And
Features Up To 256 Kbytes Of Flash And Up To 24 Kbytes Of Sram. The Peripheral Set Includes 2x
Usarts, 2x Uarts, 2x Twis, 3x Spi, As Well As 1 Pwm Timer, 6x General Purpose 16-bit Timers, An Rtc,
a 10-bit ADC and a 10-bit DAC.
The Sam3n Series Is Ready For Capacitive Touch Thanks To The Qtouch Library, Offering An Easy Way To
implement buttons, wheels and sliders.
The Sam3n Device Is An Entry-level General Purpose Microcontroller. That Makes The Sam3n The Ideal
starting point to move from 8- /16-bit to 32-bit microcontrollers.
It Operates From 1.62v To 3.6v And Is Available In 48-pin, 64-pin And 100-pin Qfp, 48-pin And 64-pin
QFN, and 100-pin BGA packages.
The SAM3N series is the ideal migration path from the SAM3S for
Applications That Require A Reduced Bom Cost. The Sam3n Series Is Pin-to-pin Compatible With The
Sam3s Series. Its Aggressive Price Point And High Level Of Integration Pushes Its Scope Of Use Far
into cost-sensitive, high-volume
Applications.
2 SAM3N
11011B-ATARM-21-Feb-12
1.1 Configuration Summary