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ATmega1281

Status: In Production

Overview
Documents
Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

The high-performance, low-power Microchip 8-bit AVR RISC-based microcontroller combines 128KB ISP flash memory, 8KB SRAM, 4KB EEPROM, 54 general purpose I/O lines, 32 general purpose working registers, real time counter, six flexible timer/counters with compare modes, PWM, 4 USARTs, byte oriented 2-wire serial interface, 16-channel 10-bit A/D converter, and a JTAG interface for on-chip debugging. The device achieves a throughput of 8 MIPS at 16 MHz and operates between 2.7-5.5 volts.

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

Parametrics
Name
Value
Program Memory Type
Flash
Program Memory Size (KB)
128
CPU Speed (MIPS/DMIPS)
16
SRAM Bytes
8,192
Data EEPROM/HEF (bytes)
4096
Digital Communication Peripherals
2-UART, 3-SPI, 1-I2C
Capture/Compare/PWM Peripherals
2 Input Capture, 2 CCP, 16PWM
Timers
2 x 8-bit, 4 x 16-bit
Number of Comparators
1
Temperature Range (°C)
-40 to 85
Operating Voltage Range (V)
1.8 to 5.5
Pin Count
64

Documents

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Application Notes

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Product Document

12/10/2016
2468KB

Development Environment

  • Emulators & Debuggers
  • Programmers
Emulators & Debuggers
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The MPLAB® PICkit™ 4 In-Circuit Debugger/Programmer allows fast and easy debugging and programming of PIC®, dsPIC®, AVR, SAM and CEC flash microcontrollers, using the powerful graphical user interface of MPLAB X Integrated Development Environment (IDE), version 4.15. The MPLAB

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Atmel-ICE Full Kit
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MPLAB PICkit 4 In-Circuit Debugger
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Fast programming, increased functionality, at the same price as its predecessor.


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Atmel-ICE Full Kit
Atmel-ICE Full Kit ( ATATMEL-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
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Product
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Flash (KB)
RAM (B)
Price 5K
Notes
100
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8,192
$7.72
 
64
128
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$6.28
 
100
256
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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (grams)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
ATMEGA1281-16AU
0.540000
4.122222
64
TQFP
14x14x1mm
Matte Tin
e3
ATMEGA1281V-8AU
0.540000
4.122222
64
TQFP
14x14x1mm
Matte Tin
e3
ATMEGA1281V-8AUR
0.540000
0.750000
64
TQFP
14x14x1mm
Matte Tin
e3
ATMEGA1281-16AUR
0.540000
0.750000
64
TQFP
14x14x1mm
Matte Tin
e3
ATMEGA1281-16MUR
0.242700
0.335500
64
VQFN
9x9x1mm
Matte Tin
e3
ATMEGA1281-16MU
0.242700
0.842308
64
VQFN
9x9x1mm
Matte Tin
e3
ATMEGA1281V-8MU
0.242700
0.842308
64
VQFN
9x9x1mm
Matte Tin
e3
ATMEGA1281V-8MUR
0.242700
0.335500
64
VQFN
9x9x1mm
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.

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