A member of the Atmel® SAM3N series of microcontrollers based on the high-performance 32-bit ARM® Cortex™-M3 RISC processor. It operates at a maximum speed of 48MHz and features 256KB of flash and 24KB of SRAM. The peripheral set includes an USART, two UARTs. two SPIs, two TWIs,PWM timer, six 16-bit timers, RTC, a 10-bit ADC and a 10-bit DAC. The SAM3N4B is ready for capacitive touch thanks to the Atmel QTouch® library, offering an easy way to implement buttons, wheels and sliders. It operates from 1.62V to 3.6V and is available in 64-pin LQFP and QFN packages. The SAM3N4B is pin-to-pin compatible with the SAM3S4B and the SAM7S64.

Key Parameters

Parameter
Value

Flash (Kbytes):

256 Kbytes

Pin Count:

64

Max. Operating Frequency:

48 MHz

CPU:

Cortex-M3

# of Touch Channels:

32

Hardware QTouch Acquisition:

No

Max I/O Pins:

79

Ext Interrupts:

79

USB Transceiver:

0

Quadrature Decoder Channels:

2

 

Ordering Codes

Ordering Code Package Speed Power Supply Operational Range Comment
ATSAM3N4BA-AU LQFP R-LQ064_E 64 Industrial (A) (-40°C to 85°C)
ATSAM3N4BA-MU QFN R-QFN064_B 64 Industrial (A) (-40°C to 85°C)