AT91C140 Datasheet, PDF (1/171 Pages) ATMEL Corporation – AT91 ARM Thumb Microcontrollers

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
AT91^® ARM^®
Thumb
Microcontrollers
AT91C140
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 appli-
cations. 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 combin-
ing 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 effec-
tive solution to many networking applications.
6069A–ATARM–05/04