ATMEGA323-8AC Atmel, ATMEGA323-8AC Datasheet - Page 13
ATMEGA323-8AC
Manufacturer Part Number
ATMEGA323-8AC
Description
IC AVR MCU 32K 8MHZ COM 44TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA323L-4PC.pdf
(247 pages)
Specifications of ATMEGA323-8AC
Core Processor
AVR
Core Size
8-Bit
Speed
8MHz
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)
4.5 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
0°C ~ 70°C
Package / Case
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
ATMEGA3238AC
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The Program and Data
Addressing Modes
Register Direct, Single
Register Rd
1457G–AVR–09/03
Figure 9. SRAM Organization
The ATmega323 AVR Enhanced RISC microcontroller supports powerful and efficient
addressing modes for access to the Program memory (Flash) and Data memory
(SRAM, Register File, and I/O Memory). This section describes the different addressing
modes supported by the AVR architecture. In the figures, OP means the operation code
part of the instruction word. To simplify, not all figures show the exact location of the
addressing bits.
Figure 10. Direct Single Register Addressing
The operand is contained in register d (Rd).
I/O Registers
Register File
R29
R30
$3D
R31
$00
$01
$02
$3E
$3F
R0
R1
R2
...
...
ATmega323(L)
Data Address Space
Internal SRAM
$001D
$005D
$0000
$0001
$001E
$001F
$0020
$0021
$0022
$005E
$005F
$0060
$0061
$085E
$085F
$0002
...
...
...
13
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