AT91C140

Features:

• ARM7TDMI^® ARM^® Thumb^® Processor Core
In-Circuit Emulator, 36 MHz operation
• Ethernet Bridge
Dual Ethernet 10/100 Mbps MAC Interface
16-Kbyte Frame Buffer
• 1 K-Byte Boot ROM, Embedding a Boot Program
Enable Application Download from DataFlash^®
• External Bus Interface
On-chip 32-bit SDRAM Controller
4-Chip Select Static Memory Controller
• Multi-level Priority, Individually Maskable, Vectored Interrupt Controller
• Three 16-bit Timer/Counters
• Two UARTs with Modem Control Lines
• Serial Peripheral Interface (SPI)
• Two PIO Controllers, Managing up to 48 General-purpose I/O Pins
• Available in a 256-ball BGA Package
• Power Supplies
VDDIO 3.3V nominal
VDDCORE and VDDOSC 1.8V nominal
• -40°C to + 85°C Operating Temperature Range



Description

The AT91C140 is a member of the Atmel AT91 16- and 32-bit microcontroller family 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 very low power consumption.

In addition, the AT91C140 integrates a double Ethernet 10/100 base-T MAC capable of operating as an Ethernet bridge, thus making it ideally suited for networking applications. It supports a wide range of memory devices such as SDRAM, SRAM and Flash and embeds an extensive array of peripherals.

The device is manufactured using Atmel's high-density CMOS technology. By combining the ARM7TDMI processor core with an expansive assortment of peripheral functions and low-power oscillators and PLL on a monolithic chip, the Atmel AT91C140 is a powerful microcontroller that provides a highly flexible and cost effective solution to many networking applications.