AT91M43300 is a member of the Atmel AT91 16/32 series, which uses the ARM7TDMI ARM Thumb processor core. It features high performance, high-density instruction set, low power consumption, etc. It supports a maximum of 64M bytes of external address space, 8-channel peripheral data controller, 8-level priority interrupt controller, 58 programmable I/O lines, etc.
The AT91M43300 is a 16/32‑bit microcontroller from Atmel built around an ARM7TDMI/Thumb core. It offers a high‑performance 32‑bit RISC architecture, 3 KB internal RAM, a fully‑programmable external bus interface, and a rich set of peripherals including USARTs, SPI, timers, and a programmable interrupt controller.
This handbook details the device’s pinout, architectural blocks, power‑supply options, peripheral functions, and mechanical package. It includes tables for pin description, block diagrams, and specifications such as voltage ranges, temperature limits, and package dimensions.
| Core Operating Voltage Range | 1.8V to 3.6V |
|---|---|
| I/O Operating Voltage Range | 2.7V to 5.5V |
| Operating Temperature Range | -40°C to +85°C |
| Internal RAM | 3 KB |
| Maximum External Address Space | 64 MB |
| Package Type | 144‑ball PBGA |
| Programmable I/O Lines | 58 |
| External Chip Selects | 8 |
| USART Channels | 3 |
| SPI Chip Selects | 4 |
The core operates from 1.8 V to 3.6 V.
The device provides 58 programmable I/O lines.
It can address up to 64 MB of external memory.