ATMEGA128A-MU Atmel, ATMEGA128A-MU Datasheet - Page 379
ATMEGA128A-MU
Manufacturer Part Number
ATMEGA128A-MU
Description
MCU 8BIT 128K ISP FLASH 64-QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA128A-MU
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
EBI/EMI, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
53
Program Memory Size
128KB (64K x 16)
Program Memory Type
FLASH
Eeprom Size
4K x 8
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-MLF®, 64-QFN
Processor Series
ATMEGA128x
Core
AVR8
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
Controller Family/series
AVR MEGA
No. Of I/o's
53
Eeprom Memory Size
4KB
Ram Memory Size
4KB
Cpu Speed
16MHz
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATMEGA128A-MU
Manufacturer:
Atmel
Quantity:
442
Company:
Part Number:
ATMEGA128A-MU
Manufacturer:
ATMEL
Quantity:
423
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Table of Contents
8151H–AVR–02/11
1
2
3
4
5
6
7
8
Pin Configurations ................................................................................... 2
Overview ................................................................................................... 2
Resources ................................................................................................. 8
Data Retention .......................................................................................... 8
About Code Examples ............................................................................. 8
AVR CPU Core .......................................................................................... 9
Memories ................................................................................................ 18
System Clock and Clock Options ......................................................... 37
2.1
2.2
2.3
6.1
6.2
6.3
6.4
6.5
6.6
6.7
6.8
7.1
7.2
7.3
7.4
7.5
7.6
8.1
8.2
8.3
8.4
8.5
8.6
8.7
Block Diagram ...................................................................................................3
ATmega103 and ATmega128A Compatibility ...................................................4
Pin Descriptions .................................................................................................5
Introduction ........................................................................................................9
Architectural Overview .......................................................................................9
ALU – Arithmetic Logic Unit .............................................................................10
Status Register ................................................................................................10
General Purpose Register File ........................................................................11
Stack Pointer ...................................................................................................13
Instruction Execution Timing ...........................................................................14
Reset and Interrupt Handling ...........................................................................15
In-System Reprogrammable Flash Program Memory .....................................18
SRAM Data Memory ........................................................................................19
EEPROM Data Memory ..................................................................................21
I/O Memory ......................................................................................................22
External Memory Interface ..............................................................................22
Register Description ........................................................................................30
Clock Systems and their Distribution ...............................................................37
Clock Sources .................................................................................................39
Default Clock Source .......................................................................................39
Crystal Oscillator .............................................................................................39
Low-frequency Crystal Oscillator .....................................................................41
External RC Oscillator .....................................................................................41
Calibrated Internal RC Oscillator .....................................................................42
ATmega128A
i
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