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AT91

Microcontrollers

AT91M43300

Features

– High-performance 32-bit RISC Architecture

– High-density 16-bit Instruction Set

– Leader in MIPS/Watt

– Embedded ICE (In-Circuit Emulation)

– Maximum External Address Space of 64M Bytes

– Up to 8 Chip Selects

– Software-programmable 8/16-bit External Data Bus

– 5 External Interrupts, including a High-priority, Low-latency Interrupt Request

– 6 External Clock Inputs

– 2 Multi-purpose I/O Pins per Channel

– 2 Dedicated Peripheral Data Controller (PDC) Channels per USART

– Support for up to 9-bit Data Transfers

– 2 Dedicated Peripheral Data Controller (PDC) Channels

– 8- to 16-bit Programmable Data Length

– 4 External Slave Chip Selects

– CPU and Peripherals can be Deactivated Individually

° to +85°C Operating Temperature Range

Description

The AT91M43300 is a member of the Atmel AT91 16/32-bit Microcontroller family,

which is based on the ARM7TDMI processor core.

This processor has a high-performance 32-bit RISC architecture with a high-density

16-bit instruction set and features very low power consumption. In addition, a large

number of internally banked registers result in very fast exception handling, making

the device ideal for real-time control applications. The AT91 ARM-based MCU family

also features Atmel’s high-density, in-system programmable, nonvolatile memory

technology.

The AT91M43300 has a direct connection to off-chip memory, including Flash,

through the fully-programmable External Bus Interface.

The AT91M43300 is manufactured using Atmel’s high-density CMOS technology. By

combining the ARM7TDMI microcontroller core with an on-chip SRAM, and a wide

range of peripheral functions on a monolithic chip, the AT91M43300 provides a highly-

flexible and cost-effective solution to many compute-intensive multi-processor appli-

cations.

The compact BGA package reduces required board space to an absolute minimum.

Rev. 1322A–10/99