AT91M55800-33CI Atmel, AT91M55800-33CI Datasheet - Page 10

• Manufacturer Part Number: AT91M55800-33CI
• Description: IC ARM7 MCU 176 BGA
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91M55800-33CI

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 33MHz
• Connectivity: EBI/EMI, SPI, UART/USART
• Peripherals: POR, WDT
• Number Of I /o: 58
• Program Memory Type: ROMless
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 176-LFBGA
• For Use With: AT91EB55 - KIT EVAL FOR ARM AT91M55800A
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Other names: AT91M5580033CI

general-purpose input/output signal pins. The PIO controllers can be programmed to
detect an interrupt on a signal change from each line.
The Watchdog (WD) can be used to prevent system lock-up if the software becomes
trapped in a deadlock.
The Special Function (SF) module integrates the Chip ID and Reset Status registers.
User Peripherals
Three USARTs, independently configurable, enable communication at a high baud rate
in synchronous or asynchronous mode. The format includes start, stop and parity bits
and up to 8 data bits. Each USART also features a Timeout and a Time Guard Register,
facilitating the use of the two dedicated Peripheral Data Controller (PDC) channels.
The six 16-bit Timer/Counters (TC) are highly programmable and support capture or
waveform modes. Each TC channel can be programmed to measure or generate differ-
ent kinds of waves, and can detect and control two input/output signals. Each TC also
has three external clock signals.
The SPI provides communication with external devices in master or slave mode. It has
four external chip selects which can be connected to up to 15 devices. The data length
is programmable, from 8- to 16-bit.
The two identical 4-channel 10-bit analog-to-digital converters (ADC) are based on a
Successive Approximation Register (SAR) approach.
The two identical single-channel 10-bit digital-to-analog converters (DAC).
AT91M55800A
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1745CS–ATARM–05/02