ATMEGA64A-AU 8-bit Microcontroller with 64K Bytes In-System Programmable Flash

8-bit Microcontroller with 64K Bytes In-System Programmable Flash

ATmega64A

Features

• High-performance, Low-power AVR® 8-bit Microcontroller

• Advanced RISC Architecture

  – 130 Powerful Instructions

  – Most Single Clock Cycle Execution

  – 32 x 8 General Purpose Working Registers + Peripheral Control Registers

  – Fully Static Operation

  – Up to 16 MIPS Throughput at 16 MHz

  – On-chip 2-cycle Multiplier

• High Endurance Non-volatile Memory segments

  – 64K Bytes of In-System Reprogrammable Flash program memory

  – 2K Bytes EEPROM

  – 4K Bytes Internal SRAM

  – Write/Erase Cycles: 10,000 Flash/100,000 EEPROM

  – Data retention: 20 years at 85°C/100 years at 25°C⁽¹⁾

  – Optional Boot Code Section with Independent Lock Bits

      • In-System Programming by On-chip Boot Program

      • True Read-While-Write Operation

  – Up to 64K Bytes Optional External Memory Space

  – Programming Lock for Software Security

  – SPI Interface for In-System Programming

• 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 Expanded 16-bit Timer/Counters with Separate Prescaler, Compare Mode, and Capture Mode

  – Real Time Counter with Separate Oscillator

  – Two 8-bit PWM Channels

  – 6 PWM Channels with Programmable Resolution from 1 to 16 Bits

  – 8-channel, 10-bit ADC

      • 8 Single-ended Channels

      • 7 Differential Channels

      • 2 Differential Channels with Programmable Gain (1x, 10x, 200x)

  – Byte-oriented Two-wire Serial Interface

  – Dual Programmable Serial USARTs

  – Master/Slave SPI Serial Interface

  – Programmable Watchdog Timer with On-chip Oscillator

  – On-chip Analog Comparator

• 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

  – Software Selectable Clock Frequency

  – ATmega103 Compatibility Mode Selected by a Fuse

  – Global Pull-up Disable

• I/O and Packages

  – 53 Programmable I/O Lines

  – 64-lead TQFP and 64-pad QFN/MLF

• Operating Voltages

  – 2.7 - 5.5V for ATmega64A

• Speed Grades

  – 0 - 16 MHz for ATmega64A

Pin Configuration

Absolute Maximum Ratings*

Operating Temperature .............................................. -55 to +125°C

Storage Temperature ............................................. -65°C to +150°C

Voltage on any Pin except RESET

    with respect to Ground ....................................-0.5V to VCC+0.5V

Voltage on RESET with respect to Ground ...............-0.5V to +13.0V

Maximum Operating Voltage ..................................................... 6.0V

DC Current per I/O Pin ....................................................... 40.0 mA

DC Current VCC and GND Pins ............................ 200.0 - 400.0mA

*NOTICE: Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or other conditions beyond those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

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