AT91SAM7X256-AU Microcontroller IC 16/32-Bit 55MHz 256KB (256K x 8)
FLASH 100-LQFP
The Atmel SAM7X512/256/128 is a highly-integrated Flash
microcontroller based on the 32-bit ARM® RISC processor. It
features 512/256/128 Kbytes of high-speed Flash and 128/64/32
Kbytes of 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. Builtin lock bits and a security bit protect the firmware
from accidental overwrite and preserve its confidentiality. The
SAM7X512/256/128 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
SAM7X512/256/128 is a powerful device that provides a flexible,
cost-effective solution to many embedded control applications
requiring communication over Ethernet, wired CAN and ZigBee®
wireless networks.
Core Size | 16/32-Bit |
Speed | 55MHz |
Connectivity | CANbus, Ethernet, I²C, SPI, SSC, UART/USART, USB |
Peripherals | Brown-out Detect/Reset, DMA, POR, PWM, WDT |
Number of I/O | 62 |
Program Memory Size | 256KB (256K x 8) |
Program Memory Type | FLASH |
EEPROM Size | - |
RAM Size | 64K x 8 |
Voltage - Supply (Vcc/Vdd) | 1.65V ~ 1.95V |
Data Converters | A/D 8x10b |
Oscillator Type | Internal |
Operating Temperature | -40°C ~ 85°C |
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