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AT91C140_05 Datasheet, PDF (1/174 Pages) ATMEL Corporation – AT91 ARM Thumb Microcontrollers | |||
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Features
⢠ARM7TDMI® ARM® Thumb® Processor Core
â In-Circuit Emulator, 36 MHz Operation
⢠Ethernet Bridge
â Dual Ethernet 10/100 Mbps MAC Interface
â 16-Kbyte Frame Buffer
⢠1 K-Byte Boot ROM, Embedding a Boot Program
â Enable Application Download from DataFlash®
⢠External Bus Interface
â On-chip 16-bit SDRAM Controller
â 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 208-lead PQFP Package
⢠Power Supplies
â VDDIO 3.3V nominal
â VDDCORE and VDDOSC 1.8V nominal
⢠-40°C to + 85°C Operating Temperature Range
AT91 ARM®
Thumb®
Microcontrollers
AT91C140
1. 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 Atmelâs high-density CMOS technology. By com-
bining 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.
6069CâATARMâ15-Sep-05
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