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AT91SAM9N12
  • AT91SAM9N12
  • AT91SAM9N12

AT91SAM9N12

In Production

The Microchip's ARM®-based SAM9N12 is an ARM926EJ-S based microprocessor running at 400MHz. Its extensive peripheral set includes an integrated graphics LCD controller that supports screen resolutions up to WVGA with 16M colors and 24bpp. In addition, it offers support for a wide range of external memories, including LPDDR/DDR2 and MLC NAND flash memory with up to 24-bit ECC. The SAM9N12 features multiple communication interfaces, such as a Full Speed USB host and device with on-chip transceivers, SD/SDIO/MMC, USARTs, SPIs, I2S and I2C. The device is available in a 217-ball BGA package with 0.8mm ball pitch as well as a 247-ball BGA package with 0.5mm ball pitch....

Microchip Technology AT91SAM9N12 Product Info

16 April 2026 1

Parameters

ADC Resolution (bits)

10

ADC Sampling Rate (ksps)

440

Anti-Tampering Inputs

0

Secure Bootloader

No

CAN/CAN-FD

0

Type of CAN module Max A (ampere)

None

Camera Interface

No

Int. DRAM (MB)

0

Ext. DRAM Bus (bits)

16

DRAM Memory Interface

SDRAM/LPSDRAM/LPDDR/DDR2

Number of EBIs

1

ECC bits on NAND interface

24

FPU

No

Graphic LCD Interface

24-bit

Hardware RTCC/RTC

Yes

I/O Pins Max

105

Secure Key Storage (bits)

0

L1 Cache Memory (Data) (KB)

16

L1 Cache Memory (Instructions) (KB)

16

LIN

Yes

CPU Speed Max MHz (megahertz)

400

NAND Interface

Yes

Operation Voltage Max.(V)

1.1

Operation Voltage Min.(V)

0.9

Internal Oscillator

32KHz

Part Family

SAM9N

QSPI

0

SDIO/SD-CARD/eMMC

1

Temp. Sensor

No

Watch Dog Timer

Yes

Direct Memory Access (DMA) Channels

19

Graphics Controller/GPU

Yes

Quadrature Encoder Interface

0

ADC Channels

12

Pincount

217

Crypto Engine

No

TempRange Min

-40

TempRange Max

85

Features

  • ARM926EJ-S ARM® Thumb® Processor running up to 400 MHz
  • 16 Kbytes Data Cache, 16 Kbytes Instruction Cache, Memory Management Unit Memories
  • One 128-Kbyte internal ROM embedding standard or secure bootstrap routine
  • One 32-Kbyte internal SRAM, single-cycle access at system speed
  • 32-bit External Bus Interface supporting 8-bank DDR2/LPDDR, SDR/LPSDR, Static Memories
  • MLC/SLC NAND Controller, with up to 24-bit Programmable Multibit Error Correction Code (PMECC) System running up to 133 MHz
  • Power-on Reset, Reset Controller, Shutdown Controller, Periodic Interval Timer, Watchdog Timer and Real Time Clock
  • Boot Mode Select Option, Remap Command
  • Internal Low Power 32 kHz RC and Fast 12 MHz RC Oscillators
  • Selectable 32768 Hz Low-power Oscillator, 16 MHz Oscillator, one PLL for the system and one PLL optimized for USB
  • Six 32-bit-layer AHB Bus Matrix
  • Dual Peripheral Bridge with dedicated programmable clock
  • One dual port 8-channel DMA Controller
  • Advanced Interrupt Controller (AIC)
  • Two Programmable External Clock Signals
  • Low-power Mode
  • Shutdown Controller with four 32-bit General-purpose Backup Registers
  • Clock Generator and Power Management Controller
  • Very Slow Clock Operating Mode, Software Programmable Power Optimization Capabilities
  • LCD Controller
  • USB Device Full Speed with dedicated On-chip Transceiver
  • USB Host Full Speed with dedicated On-chip Transceiver
  • One High-speed SD card and SDIO Host Controller
  • Two Master/Slave Serial Peripheral Interfaces (SPI)
  • Two 3-channel 32-bit Timer/Counters (TC)
  • One Synchronous Serial Controller (SSC)
  • One 4-channel 16-bit PWM Controller
  • Two 2-wire Interfaces (TWI)
  • Four Universal Synchronous Asynchronous Receiver Transmitters (USART)
  • Two Universal Asynchronous Receiver Transmitters (UART)
  • One Debug Unit (DBGU)
  • One 12-channel 10-bit Analog-to-Digital Converter with up to 5-wire resistive Touchscreen support
  • Crystal Failure Detection
  • Independent Watchdog
  • Power-on Reset Cells
  • Register Write Protection
  • SHA (SHA1 and SHA256) Compliant with FIPS Publication 180-2 (SAM9CN11/SAM9CN12 devices)
  • True Random Number Generator (TRNG) compliant with NIST Special Publication 800-22
  • AES 256-, 192-, 128-bit Key Algorithm compliant with FIPS Publication 197 (SAM9CN11/SAM9CN12 devices)
  • 256 Fuse bits for crypto key and 64 Fuse bits for device configuration, including JTAG disable and forced boot from the on-chip ROM (Secure Boot feature - SAM9CN12 only)
  • Four 32-bit Parallel Input/Output Controllers
  • 105 Programmable I/O Lines Multiplexed with up to Three Peripheral I/Os
  • Input Change Interrupt Capability on Each I/O Line, optional Schmitt Trigger input
  • Individually Programmable Open-drain, Pull-up and Pull-down Resistor, Synchronous Output
  • 217-ball BGA, pitch 0.8 mm
  • 247-ball BGA, pitch 0.5 mm

Description

The Microchip's ARM®-based SAM9N12 is an ARM926EJ-S based microprocessor running at 400MHz. Its extensive peripheral set includes an integrated graphics LCD controller that supports screen resolutions up to WVGA with 16M colors and 24bpp. In addition, it offers support for a wide range of external memories, including LPDDR/DDR2 and MLC NAND flash memory with up to 24-bit ECC. The SAM9N12 features multiple communication interfaces, such as a Full Speed USB host and device with on-chip transceivers, SD/SDIO/MMC, USARTs, SPIs, I2S and I2C. The device is available in a 217-ball BGA package with 0.8mm ball pitch as well as a 247-ball BGA package with 0.5mm ball pitch.

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