ATMEGA32L-8AUR Atmel, ATMEGA32L-8AUR Datasheet - Page 17
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ATMEGA32L-8AUR
Manufacturer Part Number
ATMEGA32L-8AUR
Description
MCU AVR 32K FLASH 8MHZ 44TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA32L-8AUR
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)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Package
44TQFP
Device Core
AVR
Family Name
ATmega
Maximum Speed
8 MHz
Operating Supply Voltage
3.3|5 V
Data Bus Width
8 Bit
Number Of Programmable I/os
32
Interface Type
TWI/SPI/USART
On-chip Adc
8-chx10-bit
Number Of Timers
3
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Manufacturer
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Price
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SRAM Data
Memory
2503Q–AVR–02/11
Figure 9
The lower 2144 Data Memory locations address the Register File, the I/O Memory, and the inter-
nal data SRAM. The first 96 locations address the Register File and I/O Memory, and the next
2048 locations address the internal data SRAM.
The five different addressing modes for the data memory cover: Direct, Indirect with Displace-
ment, Indirect, Indirect with Pre-decrement, and Indirect with Post-increment. In the Register
File, registers R26 to R31 feature the indirect Addressing Pointer Registers.
The direct addressing reaches the entire data space.
The Indirect with Displacement mode reaches 63 address locations from the base address given
by the Y- or Z-register.
When using register indirect addressing modes with automatic pre-decrement and post-incre-
ment, the address registers X, Y, and Z are decremented or incremented.
The 32 general purpose working registers, 64 I/O Registers, and the 2048 bytes of internal data
SRAM in the ATmega32 are all accessible through all these addressing modes. The Register
File is described in
Figure 9. Data Memory Map
shows how the Atmel
I/O Registers
Register File
“General Purpose Register File” on page
R29
R30
R31
$3D
$3E
$00
$01
$02
$3F
R0
R1
R2
...
...
®
AVR
®
ATmega32 SRAM Memory is organized.
11.
Data Address Space
Internal SRAM
$001D
$001E
$005D
$005E
$085E
$0000
$0001
$001F
$0020
$0021
$0022
$005F
$0060
$0061
$085F
$0002
ATmega32(L)
...
...
...
17
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