Product Summary

Atmel's AT91SAM7X256/128 is a member of a series of highly integrated Flash microcontrollers
based on the 32-bit ARM RISC processor. It features 256/128 Kbyte high-speed Flash and
64/32 Kbyte SRAM, a large set of peripherals, including an 802.3 Ethernet MAC and a CAN controller. A complete set of system functions minimizes the number of external components.
The embedded Flash memory can be programmed in-system via the JTAG-ICE interface or via
a parallel interface on a production programmer prior to mounting. Built-in lock bits and a security bit protect the firmware from accidental overwrite and preserve its confidentiality.
The AT91SAM7X256/128 system controller includes a reset controller capable of managing the
power-on sequence of the microcontroller and the complete system. Correct device operation
can be monitored by a built-in brownout detector and a watchdog running off an integrated RC
oscillator.
By combining the ARM7TDMI processor with on-chip Flash and SRAM, and a wide range of
peripheral functions, including USART, SPI, CAN Controller, Ethernet MAC, Timer Counter, RTT
and Analog-to-Digital Converters on a monolithic chip, the AT91SAM7X256/128 is a powerful
device that provides a flexible, cost-effective solution to many embedded control applications
requiring communication over, for example, Ethernet, CAN wired and Zigbee

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
AT91SAM7X256C-AU
AT91SAM7X256C-AU

Atmel

Microprocessors (MPU) LQFP GRN IND TMP MRL C

Data Sheet

0-148: $4.67
AT91SAM7X256C-AUR
AT91SAM7X256C-AUR

Atmel

ARM Microcontrollers (MCU) LQFP Green IND TEMP MRL B, T&R MRLC

Data Sheet

0-690: $5.65
690-1000: $4.75