ATMEGA64A-AN Atmel, ATMEGA64A-AN Datasheet - Page 385
![IC MCU AVR 64K FLASH 64TQFP](/photos/12/13/121332/313-64-tqfp_sml.jpg)
ATMEGA64A-AN
Manufacturer Part Number
ATMEGA64A-AN
Description
IC MCU AVR 64K FLASH 64TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheets
1.ATMEGA64A-MUR.pdf
(21 pages)
2.ATMEGA64A-AU.pdf
(392 pages)
3.ATMEGA64A-AU.pdf
(3 pages)
Specifications of ATMEGA64A-AN
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
53
Program Memory Size
64KB (32K x 16)
Program Memory Type
FLASH
Eeprom Size
2K 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
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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Table of Contents
1
2
3
4
5
6
7
8
8160C–AVR–07/09
Features ..................................................................................................... 1
Pin Configuration ..................................................................................... 2
Overview ................................................................................................... 3
Resources ................................................................................................. 7
Data Retention .......................................................................................... 7
About Code Examples ............................................................................. 8
AVR CPU Core .......................................................................................... 9
AVR Memories ........................................................................................ 17
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
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 ATmega64A Compatibility .....................................................4
Pin Descriptions .................................................................................................5
Overview ............................................................................................................9
ALU – Arithmetic Logic Unit .............................................................................10
Status Register ................................................................................................10
Stack Pointer ...................................................................................................13
Instruction Execution Timing ...........................................................................13
Reset and Interrupt Handling ...........................................................................14
Interrupt Response Time .................................................................................16
In-System Reprogrammable Flash Program Memory .....................................17
SRAM Data Memory ........................................................................................18
EEPROM Data Memory ..................................................................................21
I/O Memory ......................................................................................................22
External Memory Interface ..............................................................................23
Register Description ........................................................................................30
Clock Systems and their Distribution ...............................................................37
Clock Sources .................................................................................................38
Default Clock Source .......................................................................................38
Crystal Oscillator .............................................................................................39
Low-frequency Crystal Oscillator .....................................................................40
External RC Oscillator .....................................................................................41
Calibrated Internal RC Oscillator .....................................................................42
ATmega64A
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