Microchip Technology Inc

ATmega8A

In Production

The high-performance, low-power Microchip 8-bit AVR RISC-based microcontroller combines 8KB ISP flash memory with read-while-write capabilities, 512B EEPROM, 1KB SRAM, 23 general purpose I/O lines, 32 general purpose working registers, three flexible timer/counters with compare modes, internal and external interrupts,serial programmable USART, a byte oriented two-wire serial interface, 6-channel 10-bit A/D converter (8-channel in TQFP and QFN/MLF packages), programmable watchdog timer with internal oscillator, SPI serial port, and five software selectable power saving modes. The device operates between 2.7-5.5 volts.

By executing powerful instructions in a single clock cycle, the device achieves throughputs approaching 1 MIPS per MHz, balancing power consumption and processing speed.

 
    Parameter Name
    Value
    Program Memory Type
    Flash
    Program Memory (KB)
    8
    CPU Speed (MIPS)
    16
    RAM Bytes
    1
    Data EEPROM (bytes)
    512
    Digital Communication Peripherals
    1-UART, 1-SPI, 1-I2C
    Comparators
    1
    Temperature Range (C)
    -40 to 85
    Operating Voltage Range (V)
    2.7 to 5.5
    Pin Count
    32
    Cap Touch Channels
    12
    Documentation
    Data Sheets
    12/10/2016
    4930KB
    Data Sheets
    12/10/2016
    427KB
      Application Notes
     
     
     
    AppNote
    11/01/2009
    126KB
    AppNote
    09/01/2005
    64KB
    AppNote
    05/01/2002
    84KB
    AppNote
    12/10/2016
    142KB
    AppNote
    05/01/2006
    226KB
    AppNote
    05/01/2002
    69KB
    AppNote
    01/01/2003
    94KB
    AppNote
    05/01/2002
    91KB
    AppNote
    05/01/2002
    84KB
    AppNote
    04/01/2008
    170KB
    AppNote
    05/01/2002
    99KB
    AppNote
    12/10/2016
    241KB
    AppNote
    09/01/2005
    73KB
    AppNote
    02/01/2003
    85KB
    AppNote
    05/01/2002
    197KB
    AppNote
    05/01/2002
    134KB
    AppNote
    09/01/2005
    57KB
    AppNote
    05/01/2002
    115KB
    AppNote
    04/01/2003
    71KB
    AppNote
    05/01/2002
    147KB
    AppNote
    06/01/2006
    75KB
    AppNote
    05/01/2002
    75KB
    AppNote
    04/01/2003
    94KB
    AppNote
    05/01/2002
    150KB
    AppNote
    12/10/2016
    284KB
    AppNote
    01/01/2004
    226KB
    AppNote
    01/01/2004
    100KB
    AppNote
    12/10/2016
    207KB
    AppNote
    04/01/2005
    149KB
    AppNote
    01/01/2008
    108KB
    AppNote
    12/10/2016
    258KB
    AppNote
    10/01/2004
    342KB
    AppNote
    05/01/2002
    76KB
    AppNote
    01/01/2004
    140KB
    AppNote
    12/10/2016
    283KB
    AppNote
    05/01/2002
    125KB
    AppNote
    12/10/2016
    269KB
    AppNote
    05/01/2002
    139KB
    AppNote
    06/01/2004
    92KB
    AppNote
    09/01/2005
    91KB
    AppNote
    05/01/2002
    111KB
    AppNote
    05/01/2002
    650KB
    AppNote
    05/01/2002
    786KB
    AppNote
    04/01/2008
    414KB
    AppNote
    12/10/2016
    511KB
    AppNote
    02/01/2002
    72KB
    AppNote
    12/10/2016
    229KB
    AppNote
    12/10/2016
    684KB
    AppNote
    09/01/2002
    47KB
    AppNote
    07/01/2008
    174KB
    AppNote
    01/01/2003
    105KB
    AppNote
    12/10/2016
    252KB
    AppNote
    07/01/2003
    77KB
    AppNote
    04/01/2005
    193KB
    AppNote
    12/10/2016
    406KB
    AppNote
    09/01/2003
    145KB
    AppNote
    11/01/2003
    55KB
    AppNote
    04/01/2008
    92KB
    AppNote
    06/01/2008
    139KB
    AppNote
    12/10/2016
    492KB
    AppNote
    03/01/2005
    57KB
    AppNote
    12/10/2016
    304KB
    AppNote
    12/10/2016
    257KB
    AppNote
    12/10/2016
    272KB
    AppNote
    12/10/2016
    209KB
    AppNote
    04/01/2008
    163KB
    AppNote
    12/10/2016
    555KB
    AppNote
    08/01/2013
    591KB
    AppNote
    10/01/2012
    220KB
    AppNote
    04/01/2004
    54KB
    AppNote
    11/01/2004
    117KB
    AppNote
    12/10/2016
    662KB
    AppNote
    03/01/2005
    75KB
    AppNote
    12/10/2016
    314KB
    AppNote
    12/10/2016
    388KB
    AppNote
    10/01/2005
    129KB
    AppNote
    12/10/2016
    526KB
    AppNote
    06/01/2006
    157KB
    AppNote
    03/01/2005
    485KB
    AppNote
    07/01/2013
    629KB
    AppNote
    07/01/2015
    743KB
    AppNote
    03/01/2007
    114KB
    AppNote
    12/01/2009
    820KB
    AppNote
    05/01/2012
    713KB
    AppNote
    07/01/2012
    628KB
    AppNote
    04/01/2012
    954KB
    AppNote
    07/01/2012
    532KB
    AppNote
    07/01/2012
    125KB
    AppNote
    12/01/2012
    1400KB
    AppNote
    01/01/2013
    240KB
    AppNote
    11/01/2012
    143KB
    AppNote
    07/01/2013
    793KB
    AppNote
    12/10/2016
    442KB
    AppNote
    12/10/2016
    363KB
    AppNote
    10/01/2003
    162KB
    AppNote
    06/01/2009
    43KB
    AppNote
    12/01/2005
    380KB
    AppNote
    12/01/2005
    456KB
    AppNote
    12/01/2005
    208KB
    AppNote
    12/01/2006
    534KB
    AppNote
    12/10/2016
    323KB
    AppNote
    09/01/2007
    109KB
    AppNote
    10/01/2008
    2894KB
    AppNote
    07/01/2008
    146KB
    AppNote
    09/01/2005
    117KB
    AppNote
    09/01/2005
    567KB
    AppNote
    10/01/2005
    245KB
    AppNote
    10/01/2005
    148KB
    AppNote
    12/10/2016
    226KB
    AppNote
    02/01/2006
    247KB
    AppNote
    06/01/2006
    152KB
    AppNote
    12/10/2016
    275KB
    AppNote
    10/01/2008
    98KB
    AppNote
    07/01/2007
    435KB
    AppNote
    09/01/2007
    230KB
    AppNote
    09/01/2007
    244KB
    AppNote
    05/05/2017
    315KB
    AppNote
    01/01/2008
    230KB
    AppNote
    03/01/2008
    317KB
    AppNote
    03/01/2008
    114KB
    AppNote
    12/10/2016
    139KB
    AppNote
    04/01/2008
    492KB
    AppNote
    04/01/2013
    724KB
    AppNote
    08/01/2009
    168KB
    AppNote
    05/01/2010
    1530KB
    AppNote
    07/01/2013
    486KB
    AppNote
    03/01/2015
    1035KB
    AppNote
    12/01/2010
    92KB
    AppNote
    02/01/2011
    241KB
    AppNote
    03/01/2013
    796KB
    AppNote
    03/01/2012
    361KB
    AppNote
    12/10/2016
    304KB
    AppNote
    11/01/2011
    236KB
    AppNote
    12/10/2016
    777KB
    AppNote
    12/10/2016
    244KB
    AppNote
    12/10/2016
    178KB
    AppNote
    05/30/2017
    275KB
    AppNote
    06/06/2017
    1492KB
    AppNote
    06/23/2017
    302KB
    AppNote
    07/18/2017
    239KB
      Brochures
     
     
     
    Brochures
    01/01/2013
    122KB
    Brochures
    01/01/2012
    91KB
    Brochures
    09/01/2012
    108KB
    Brochures
    11/01/2014
    785KB
      Product Document
     
     
     
     
    Product Document
    12/10/2016
    2468KB
      Quick Start Guides
     
     
     
    Quick Start Guides
    01/01/2004
    287KB
    Quick Start Guides
    01/01/2004
    188KB
    Quick Start Guides
    01/01/2004
    430KB
    Quick Start Guides
    06/01/2004
    452KB
    Quick Start Guides
    05/01/2013
    112KB
    Quick Start Guides
    06/01/2013
    933KB
    Quick Start Guides
    01/01/2004
    196KB
    Quick Start Guides
    01/01/2004
    213KB
    Quick Start Guides
    05/01/2013
    104KB
      White Papers
     
     
     
     
    WhitePapers
    07/01/2012
    951KB
    Pricing & Samples
    All pricing shown in USD only.
    Part Number
    Leads
    Package Type
    Temp Range
    Packing
    1+
    26+
    100+
    1000+
    5000+
    Buy
    Sample
    ATMEGA8A-AN
    32
    TQFP
    -40C to +105C
    TRAY
    2.01
    1.84
    1.67
    1.54
    1.46
     
    ATMEGA8A-ANR
    32
    TQFP
    -40C to +105C
    T/R
    2.07
    1.90
    1.72
    1.58
    1.50
     
    ATMEGA8A-AU
    32
    TQFP
    -40C to +85C
    TRAY
    1.91
    1.75
    1.59
    1.46
    1.39
    ATMEGA8A-AUR
    32
    TQFP
    -40C to +85C
    T/R
    1.97
    1.81
    1.64
    1.50
    1.43
    ATMEGA8A-MN
    32
    VQFN
    -40C to +105C
    TRAY
    2.01
    1.84
    1.67
    1.54
    1.46
     
    ATMEGA8A-MNR
    32
    VQFN
    -40C to +105C
    T/R
    2.07
    1.90
    1.72
    1.58
    1.50
     
    ATMEGA8A-MU
    32
    VQFN
    -40C to +85C
    TRAY
    1.91
    1.75
    1.59
    1.46
    1.39
    ATMEGA8A-MUR
    32
    VQFN
    -40C to +85C
    T/R
    1.97
    1.81
    1.64
    1.50
    1.43
    ATMEGA8A-PN
    28
    SPDIP
    -40C to +105C
    TUBE
    2.34
    2.14
    1.94
    1.79
    1.70
     
    ATMEGA8A-PU
    28
    SPDIP
    -40C to +85C
    TUBE
    2.20
    2.01
    1.82
    1.68
    1.60

    ** Device not available to purchase online. Please contact a sales office for pricing information.
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    Development Tools
    • Demo & Eval Boards
    • ATSTK600 Kit ( ATSTK600 )

      ATSTK600

      A complete starter kit and development system for the 8-bit and 32-bit AVR microcontrollers that gives designers a quick start to develop code on the AVR, with advanced features for prototyping and testing new designs.

      The AVR device connects to the STK600 using an innovative routing and socketcard sandwich system, which routes the signals from the device to the appropriate...

    • Atmel-ICE Full Kit ( ATATMEL-ICE )

      Atmel-ICE

      Atmel-ICE is a powerful development tool for debugging and programming ARM® Cortex®-M based SAM and AVR microcontrollers with on-chip debug capability.

      Atmel-ICE supports:

      • Programming and on-chip debugging of all AVR 32-bit MCUs on both JTAG and aWire interfaces
      • Programming and on-chip debugging of all AVR...

    • Power Debugger kit ( ATPOWERDEBUGGER )

      Power

      Power Debugger is a powerful development tool for debugging and programming AVR microcontrollers using UPDI, JTAG, PDI, debugWIRE, aWire, TPI or SPI target interfaces and ARM® Cortex®-M based SAM microcontrollers using JTAG or SWD target interfaces.

      In addition the Power Debugger has two independent current sensing channels for measuring and optimizing the power consumption of...

    RoHS Information
    Part
    Number
    Device
    Weight
    Shipping
    Weight
    Lead
    Count
    Package
    Type
    Package
    Width
    Solder
    Composition
    JEDEC
    Indicator
    RoHS
     
    China
    EFUP
    ATMEGA8A-PU
    2.087500
    3.733333
    28
    SPDIP
    .300in
    Matte Tin
    e3
    ATMEGA8A-PN
    2.087500
    3.733333
    28
    SPDIP
    .300in
    Matte Tin
    e3
    ATMEGA8A-AU
    0.338300
    0.800000
    32
    TQFP
    7x7x1mm
    Matte Tin
    e3
    ATMEGA8A-AUR
    0.338300
    0.497500
    32
    TQFP
    7x7x1mm
    Matte Tin
    e3
    ATMEGA8A-AN
    0.338300
    0.800000
    32
    TQFP
    7x7x1mm
    Matte Tin
    e3
    ATMEGA8A-ANR
    0.338300
    0.497500
    32
    TQFP
    7x7x1mm
    Matte Tin
    e3
    ATMEGA8A-MN
    0.060800
    0.061225
    32
    VQFN
    5x5x1mm
    Matte Tin
    e3
    ATMEGA8A-MNR
    0.060800
    0.061000
    32
    VQFN
    5x5x1mm
    Matte Tin
    e3
    ATMEGA8A-MU
    0.060800
    0.061225
    32
    VQFN
    5x5x1mm
    Matte Tin
    e3
    ATMEGA8A-MUR
    0.060800
    0.061000
    32
    VQFN
    5x5x1mm
    Matte Tin
    e3
    To see a complete listing of RoHS data for this device, please Click here
    Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.