Rainbow Electronics ATmega1284P User Manual

Atmega1284p preliminary summary, Features

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Features

High-performance, Low-power AVR

®

8-bit Microcontroller

Advanced RISC Architecture

– 131 Powerful Instructions – Most Single-clock Cycle Execution
– 32 x 8 General Purpose Working Registers
– Fully Static Operation
– Up to 20 MIPS Throughput at 20 MHz
– On-chip 2-cycle Multiplier

Nonvolatile Program and Data Memories

– 128K Bytes of In-System Self-Programmable Flash

Endurance: 10,000 Write/Erase Cycles

– Optional Boot Code Section with Independent Lock Bits

In-System Programming by On-chip Boot Program
True Read-While-Write Operation

– 4K Bytes EEPROM

Endurance: 100,000 Write/Erase Cycles

– 16K Bytes Internal SRAM
– Programming Lock for Software Security

JTAG (IEEE std. 1149.1 Compliant) Interface

– Boundary-scan Capabilities According to the JTAG Standard
– Extensive On-chip Debug Support
– Programming of Flash, EEPROM, Fuses, and Lock Bits through the JTAG Interface

Peripheral Features

– Two 8-bit Timer/Counters with Separate Prescalers and Compare Modes
– Two 16-bit Timer/Counter with Separate Prescaler, Compare Mode, and Capture

Mode

– Real Time Counter with Separate Oscillator
– Six PWM Channels
– 8-channel, 10-bit ADC

Differential mode with selectable gain at 1x, 10x or 200x

– Byte-oriented Two-wire Serial Interface
– Two Programmable Serial USART
– Master/Slave SPI Serial Interface
– Programmable Watchdog Timer with Separate On-chip Oscillator
– On-chip Analog Comparator
– Interrupt and Wake-up on Pin Change

Special Microcontroller Features

– Power-on Reset and Programmable Brown-out Detection
– Internal Calibrated RC Oscillator
– External and Internal Interrupt Sources
– Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby

and Extended Standby

I/O and Packages

– 32 Programmable I/O Lines
– 40-pin PDIP, 44-lead TQFP, and 44-pad QFN/MLF

Operating Voltages

– 1.8 - 5.5V for ATmega1284P

Speed Grades

– 0 - 4 MHz @ 1.8 - 5.5V
– 0 - 10 MHz @ 2.7 - 5.5V

– 0 - 20 MHz @ 4.5 - 5.5V

Power Consumption at 1 MHz, 1.8V, 25

°C

– Active: 0.4 mA
– Power-down Mode: 0. 1 µA
– Power-save Mode: 0.7 µA (Including 32 kHz RTC)

8-bit
Microcontroller
with 128K Bytes
In-System
Programmable
Flash

ATmega1284P

Preliminary

Summary

8059CS–AVR–07/09

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