AT91SAM9CN11 - Uncategorized Microchip - Free user manual and instructions
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| Product Type | Microcontroller |
| Manufacturer | Microchip Technology |
| Model | AT91SAM9CN11 |
| Core | ARM926EJ-S |
| Architecture | 32-bit ARM |
| Clock Speed | Up to 400 MHz |
| SRAM | 32 KB |
| ROM | 128 KB |
| Operating Voltage | 1.8V to 3.6V |
| Temperature Range | -40°C to +85°C |
| Package | BGA217 (10x10mm) |
| Interfaces | USB 2.0, 10/100 Ethernet, USART, SPI, TWI, CAN |
| Power Consumption | Typically 200 mA at 3.3V |
| Applications | Embedded systems, industrial control, IoT |
| Maintenance | No user maintenance required |
| Cleaning | Keep contacts clean using isopropyl alcohol |
| Safety | Operate within specified voltage and temperature ranges |
| Spare Parts | Not applicable (single chip) |
| Repairability | Replace entire unit if defective |
Frequently Asked Questions - AT91SAM9CN11 Microchip
How do I program the AT91SAM9CN11?
You can program the AT91SAM9CN11 using an ARM JTAG/SWD debugger or via USB bootloader. Microchip provides development tools like MPLAB X IDE and Atmel Studio.
What is the power supply requirement?
The AT91SAM9CN11 operates from a single supply voltage of 1.8V to 3.6V. It is recommended to use a 3.3V supply for typical operation.
Does the AT91SAM9CN11 have built-in Ethernet?
Yes, the AT91SAM9CN11 includes a 10/100 Ethernet MAC with an RMII interface.
Can I use external memory with this microcontroller?
Yes, the AT91SAM9CN11 supports external SDRAM, NOR flash, and NAND flash via its external bus interface (EBI).
What operating systems can run on the AT91SAM9CN11?
The AT91SAM9CN11 can run Linux, FreeRTOS, and other real-time operating systems. Microchip provides board support packages.
How many UART interfaces are available?
The AT91SAM9CN11 has 3 USARTs (Universal Synchronous/Asynchronous Receiver Transmitter) that support RS-232 and RS-485.
Is the AT91SAM9CN11 compatible with Arduino?
No, the AT91SAM9CN11 is not Arduino-compatible. It requires custom hardware design and advanced programming tools.
What is the maximum clock speed?
The AT91SAM9CN11 can operate at a maximum frequency of 400 MHz.
How can I reset the microcontroller?
Connect the NRST pin to ground momentarily through a button or use a reset controller. A power-on reset is also available.
Where can I find the full datasheet and documentation?
The complete datasheet, user guide, and application notes for the AT91SAM9CN11 are available on the Microchip website.
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