AT91xx

Atmel AT91xyz ARM7/9 base microcontroller.

AT91 Basic controllers

* AT91M40400       4 kB SRAM  0 MB Flash   TQFP-100 (obsolete, replace with AT91M40800)
* AT91F40816       4 kB SRAM  2 MB Flash   BGA-120
* AT91M40800       8 kB SRAM  0 MB Flash   TQFP-100
* AT91F40816       8 kB SRAM  2 MB Flash   BGA-120
* AT91R40807   128+8 kB SRAM  0 MB Flash   TQFP-100
* AT91FR4081   128+8 kB SRAM  1 MB Flash   BGA-120  (obsolete, replace with AT91FR40161)
* AT91FR40161  128+8 kB SRAM  2 MB Flash   BGA-120
* AT91R40008     256 kB SRAM  0 MB Flash   TQFP-100  66 MHz
* AT91FR40161    256 kB SRAM  2 MB Flash   BGA-120   66 MHz

• 8 kB SRAM
• 2 UART with PDC
• 3 Timers
• JTAG, No [Boundary Scan]?

AT91 Feature Controller

• AT91M42800A
• AT91M55800A

AT91 Feature Controller (older devices)

• AT91M43300 - Not recommended for new designs, use (AT91M42800A)
• AT91M63200 - Not recommended for new designs, use (AT91M42800A)

AT91 Single Chip Controller

• AT91RM3400 - SRAM + boot ROM, loads from ext SPI Dataflash

AT91 SAM Flash MCU

• AT91SAM7A1 1 x CAN controller
• AT91SAM7A2 4 x CAN controllers
• AT91SAM7S32/321/64/128/256/512 ARM7TDMI based single chip micro-controllers
• AT91SAM7X256/512 ARM7TDMI based single chip MCU with Ethernet MAC
• AT91SAM9260 ARM926EJ-S ARM core based MCU/no flash, Ethernet MAC, USB
• AT91SAM9261 ARM926EJ-S ARM core based MCU/no flash, Ethernet MAC, USB, LCD
• AT91SAM9263 ARM926EJ-S ARM core based MCU/no flash, Ethernet MAC, USB, LCD

- AT91SAM FAQ

AT91 Advanced Operating System Series

AT91RM9200

• 16 kB SRAM
• 128 kB Preprogrammed [AT91 Boot ROM]?
• SDRAM? Controller
• JTAG [Boundary Scan]?
• Debug UART
• 4 x USART?
• I2C Master
• SPI Master/Slave
• USB Host
• USB/Client
• Ethernet
• 3 x SSC? Synchronous Serial Controller
• 6 x Timer?s
• Compact Flash
• Smartmedia?
• MMC Card
• SD Card
• [Burst Flash]? Controller

see also At91rm9200 Drivers