This document introduces the features and characteristics of the AT91SAM9XE series microcontrollers.
This handbook describes the AT91SAM9XE128 microcontroller, based on an ARM926EJ‑S Thumb processor with up to 200 MIPS at 180 MHz. It lists the internal memories (16 KB SRAM, 128 KB flash), peripheral set, and supported interfaces such as USB 2.0 Full Speed, Ethernet MAC 10/100, and a 4‑channel 10‑bit ADC.
The document includes block diagrams, signal tables, electrical and mechanical characteristics, package drawings, and ordering information. Power‑supply ranges for core and I/O domains, as well as detailed pin‑out and multiplexing tables, are provided for hardware designers.
| Processor Core | ARM926EJ‑S Thumb |
|---|---|
| Maximum CPU Speed | 200 MIPS at 180 MHz |
| Internal SRAM | 16 KB (AT91SAM9XE128) |
| Internal Flash | 128 KB (AT91SAM9XE128) |
| USB Device Port | USB 2.0 Full Speed (12 Mbps) |
| Ethernet MAC | 10/100 Base‑T |
| ADC | 4‑channel 10‑bit |
| Core Supply Voltage | 1.65 V to 1.95 V |
It uses an ARM926EJ‑S Thumb processor.
The device provides 128 KB of internal high‑speed flash.
It includes a USB 2.0 Full Speed (12 Mbps) device port and a USB 2.0 Full Speed host port (single or dual).
VDDCORE operates between 1.65 V and 1.95 V.