This document introduces the features of the AT91SAM7XC512/256/128 series microcontrollers, including high-performance 32-bit RISC architecture, high-density 16-bit instruction set, integrated ARM7TDMI®ARM®Thumb® processor, internal high-speed flash, internal high-speed SRAM, memory controller, reset controller, clock generator, etc.
The AT91SAM7XC series are highly integrated Flash microcontrollers based on a 32‑bit ARM7TDMI® core with Thumb® support. They offer up to 512 KB of Flash, up to 128 KB of SRAM, a rich set of peripherals including Ethernet MAC, CAN, USB, AES encryption, and multiple serial interfaces.
This handbook details the device features, block diagram, pin‑out and signal description, power supply requirements, electrical characteristics, package information and errata. It serves as a reference for designers and developers working with the AT91SAM7XC512, AT91SAM7XC256 or AT91SAM7XC128 devices.
| Flash memory size (AT91SAM7XC512) | 512 KB |
|---|---|
| SRAM size (AT91SAM7XC512) | 128 KB |
| Core processor | ARM7TDMI® ARM® Thumb® |
| Maximum operating frequency | 55 MHz (1.65 V, 85 °C) |
| VDDCORE supply voltage | 1.65 V to 1.95 V |
| USB device port speed | Full Speed 12 Mbit/s |
It uses an ARM7TDMI® ARM® Thumb® processor core.
The AT91SAM7XC512 provides 512 KB of flash memory organized in two banks.
The core supply voltage (VDDCORE) must be between 1.65 V and 1.95 V.
Yes, it includes an 802.3 Ethernet MAC supporting 10/100 Mbit/s.