This file is a summary of the Atmel AT91SAM7SE ARM7TDMI Flash MCU. It mainly introduces the features of the product, including an embedded ARM7TDMI® ARM® Thumb® processor, a high-performance 32-bit RISC architecture, a high-density 16-bit instruction set, and an embedded high-performance Flash.
The AT91SAM7SE256 is part of Atmel's AT91SAM7SE series of 32‑bit ARM7TDMI microcontrollers. It integrates 256 KB of high‑speed flash, 32 KB of SRAM, a USB 2.0 full‑speed device port, multiple serial interfaces, an 8‑channel 10‑bit ADC, and a rich set of peripherals, enabling flexible embedded control solutions.
The device is offered in a 128‑lead LQFP package or a 144‑ball LFBGA package and operates from 1.8 V to 3.6 V supplies. Ordering codes and detailed pin‑out information are provided, and the full documentation is available on Atmel’s website.
| Flash memory size | 256 KB |
|---|---|
| SRAM size | 32 KB |
| Core processor | ARM7TDMI® ARM® Thumb® |
| Maximum operating frequency | 55 MHz at 1.8 V |
| I/O supply voltage (VDDIO) | 3 V to 3.6 V |
| USB device port | USB 2.0 Full Speed (12 Mbps) |
| ADC | 8‑channel 10‑bit |
| Package options | LQFP128 or LFBGA144 |
The AT91SAM7SE256 includes 256 KB of high‑speed flash memory.
The I/O lines operate from 3 V to 3.6 V.
It is offered in a 128‑lead LQFP package and a 144‑ball LFBGA package.