The document describes the features and characteristics of a product, including the ARM7TDMI ARM Thumb processor, internal high-speed flash and SRAM, memory controller, and reset controller.
The AT91SAM7S series is a family of low‑pin‑count Flash microcontrollers based on a 32‑bit ARM7TDMI® core. The handbook describes the devices' memory options, peripheral set, power management, and system architecture.
It includes sections on features, a configuration summary for each model, block diagrams, detailed signal descriptions, errata tables, revision history, and contact information for Atmel worldwide offices.
| Flash memory size | 512 KB (AT91SAM7S512) |
|---|---|
| SRAM size | 64 KB (AT91SAM7S512) |
| Maximum CPU frequency | 30 MHz (single‑cycle access) |
| USB device port | USB 2.0 Full Speed (12 Mbps) – not on AT91SAM7S32 |
The devices incorporate the ARM7TDMI® ARM® Thumb® processor.
The AT91SAM7S256 includes 256 KB of internal flash organized in a single plane.
They support single‑cycle access up to 30 MHz in worst‑case conditions.
The AT91SAM7S32 does not include a USB 2.0 device port.