ATMEGA324PA-CUR Atmel, ATMEGA324PA-CUR Datasheet - Page 461
ATMEGA324PA-CUR
Manufacturer Part Number
ATMEGA324PA-CUR
Description
MCU AVR 32KB FLSH 20 MHZ 49VFBGA
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA324PA-AUR.pdf
(468 pages)
Specifications of ATMEGA324PA-CUR
Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
32
Program Memory Size
32KB (16K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
1.8 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
8152G–AVR–11/09
1
2
3
4
5
6
7
8
Features ..................................................................................................... 1
Pin Configurations ................................................................................... 2
Overview ................................................................................................... 5
Resources ................................................................................................. 9
About Code Examples ............................................................................. 9
Data Retention .......................................................................................... 9
AVR CPU Core ........................................................................................ 10
AVR Memories ........................................................................................ 19
System Clock and Clock Options ......................................................... 30
1.1Pinout - PDIP/TQFP/VQFN/QFN/MLF for ATmega164PA/324PA/644PA/1284P .....2
1.2Pinout - DRQFN for ATmega164PA/324PA/644PA ..................................................3
1.3Pinout - VFBGA for ATmega164PA/324PA/644PA ...................................................4
2.1Block Diagram ...........................................................................................................5
2.2Comparison Between ATmega164PA, ATmega324PA, ATmega644PA and
2.3Pin Descriptions ........................................................................................................7
6.1Overview .................................................................................................................10
6.2ALU – Arithmetic Logic Unit ....................................................................................11
6.3Status Register ........................................................................................................11
6.4General Purpose Register File ................................................................................13
6.5Stack Pointer ...........................................................................................................14
6.6Instruction Execution Timing ...................................................................................15
6.7Reset and Interrupt Handling ..................................................................................16
7.1Overview .................................................................................................................19
7.2In-System Reprogrammable Flash Program Memory .............................................19
7.3SRAM Data Memory ...............................................................................................20
7.4EEPROM Data Memory ..........................................................................................22
7.5I/O Memory ..............................................................................................................23
7.6Register Description ................................................................................................24
8.1Clock Systems and their Distribution .......................................................................30
8.2Clock Sources .........................................................................................................31
8.3Low Power Crystal Oscillator ...................................................................................33
ATmega1284P 6
ATmega164PA/324PA/644PA/1284P
i
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