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产品概述
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 UART, two SPIs, two TWIs, PWM timer, six 16-bit timers, an RTC and a 10-bit ADC. The SAM3N4A 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 48-pin LQFP and QFN packages. The SAM3N4A is pin-to-pin compatible with the SAM3S4A.
关键参数
| Parameter | Value |
| Flash (Kbytes): | 256 Kbytes |
| Pin Count: | 48 |
| Max. Operating Freq. (MHz): | 48 MHz |
| CPU: | Cortex-M3 |
| # of Touch Channels: | 17 |
| Hardware QTouch Acquisition: | No |
| Max I/O Pins: | 34 |
| Ext Interrupts: | 34 |
| USB Transceiver: | 0 |
| Quadrature Decoder Channels: | 1 |
芯片订购型号
| Ordering Code | Package | Speed | Power Supply | Operational Range |
| ATSAM3N4AA-AU | | | | Industrial (A) (-40°C to 85°C) |
| ATSAM3N4AA-MU | QFN R-QFN048_E 48 | | | Industrial (A) (-40°C to 85°C) |
