Atmel Media Support
Products > AT91SAM 32-bit ARM-based Microcontrollers > Product Card
AT91M55800A
: :
The AT91M55800A features 8K bytes of on-chip SRAM, an External Bus Interface, a 6-channel Timer/Counter, 3 USARTs, a Master/Slave SPI Interface, a Watchdog Timer, an 8-channel 10-bit ADC, a 2-channel 10-bit DAC, a Clock Generator, Real-time Clock and an advanced Power Management Controller.
Status Production
SRAM (Bytes) 8K
External Bus Interface 1
RTC/RTT 1/-
10-bit ADC Channels 8
10-bit DAC Channel 2
   LFBGA 176
 LQFP 176
More
View Related Documents and Tools
Distributor InventoryCheck Distributor Inventory
:
ARM7TDMI Technical Reference Manual (284 pages, updated 04/01)
AT91M55800A Summary (28 pages, revision F, updated 04/06)
AT91M55800A (256 pages, revision F, updated 09/07)
AT91M55800A Electrical Characteristics (29 pages, updated 01/04)
 
:
Analog-to-Digital Converter in the AT91M55800A (16 pages, updated 01/04)
This Application Note describes how to use the ADC in the AT91M55800A.
AT91 Assembler Code Startup Sequence for C Code Applications Software (16 pages, revision A, updated 6/02)
Provides a C startup sequence written in assembler code and based on the C startup sequence for the AT91 Evaluation Board working with the ARM ADS V1.1 Development Tools.
AT91-AN01: Using the Two-wire interface (TWI) in Master Mode on AT91SAM Microcontrollers (32 pages, revision B, updated 08/07)
This application note is an aid for developers in the design of a system using the Two-wire Interface (TWI) of Atmel's AT91SAM family of microcontroller products with Atmel's Two-wire Interface slave devices and I2C-Bus compatible slave devices. It describes the connection with a digital temperature sensor (LM75), a Real Time Clock (DS1337), a Graphic LCD Module(PCF8558) and a 1Mbit Two-wire Serial EEPROM (AT24C1024).
AT91M55800A Clock Switching Considerations using Advanced Power Management Controller (14 pages, updated 8/02)
The Advanced Power Management Controller of the AT91M55800A requires care in switching between the different available clock sources. This Application Note describes the considerations that are required.
Connecting an I2S-Compatible Audio DAC to the AT91x40 Series Microcontroller (13 pages, revision A, updated 5/02)
Provides the procedure to construct the interface between a stero audio digital-to-analog converter and an AT91x40 Series Microcontroller.
Software DMA Implementation (8 pages, revision A, updated 10/98)
Describes two different ways to implement a DMA function in software using the ARM Fast Interrupt (FIQ) as the external event.
  Other Related Application Notes
  
:
Evaluation Kit: AT91EB55
Software Files: AT91M55800a_bsd.zip
Boundary-Scan Description files (BSD) for the AT91M55800A in TQFP and BGA package. IBIS Model software not available.
ATMEL_PLL_LFT_Filter_CALCULATOR_AT91_2v9.zip
Excel spreadsheet allowing calculation of the best R-C-C component values on the PLL Loop Back Filter.
PLL Filter Calculator for AT91M55800A
Excel spreadsheet allowing calculation of the best R-C-C component values on the PLL Loop Back Filter.
 
:
AT91EB55
:
AT91SAM Product Guide (Brochure, 2 pages, revision F, updated 5/09)
Product selection guide to Atmel's AT91SAM microcontrollers that give immediate access to market-leading ARM processors.
Atmel's ARM-based Microcontroller - Low Power for Portable Systems (White Paper, 7 pages, revision A, updated 4/01)
In the hand-held systems market, the lowest power consumption is mandatory. Atmel has responded to this challenge with the numerous advanced power-saving features in its AT91 range of ARM-based Microcontrollers.
Atmel's ARM-based Microcontroller Excels in Real-Time (White Paper, 6 pages, revision A, updated 3/01)
Applications such as mobile communicators, PDAs, solid-state music players and internet appliances demand the best possible real-time performance. Atmel's AT91 series of ARM-based microcontrollers incorporates a number of advanced features that enhance the real-time performance of the ARM7TDMI core, making it ideal for applications of this nature.