ATMEGA8A-MUR Atmel, ATMEGA8A-MUR Datasheet - Page 15
ATMEGA8A-MUR
Manufacturer Part Number
ATMEGA8A-MUR
Description
MCU AVR 8KB FLASH 16MHZ 32QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA8A-MU.pdf
(308 pages)
Specifications of ATMEGA8A-MUR
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
23
Program Memory Size
8KB (4K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
1K 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
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7. AVR Memories
7.1
7.2
8159D–AVR–02/11
Overview
In-System Reprogrammable Flash Program Memory
This section describes the different memories in the Atmel
tecture has two main memory spaces, the Data memory and the Program Memory space. In
addition, the ATmega8A features an EEPROM Memory for data storage. All three memory
spaces are linear and regular.
The ATmega8A contains 8K bytes On-chip In-System Reprogrammable Flash memory for pro-
gram storage. Since all AVR instructions are 16- or 32-bits wide, the Flash is organized as 4K x
16 bits. For software security, the Flash Program memory space is divided into two sections,
Boot Program section and Application Program section.
The Flash memory has an endurance of at least 10,000 write/erase cycles. The ATmega8A Pro-
gram Counter (PC) is 12 bits wide, thus addressing the 4K Program memory locations. The
operation of Boot Program section and associated Boot Lock Bits for software protection are
described in detail in
212.
ming in SPI- or Parallel Programming mode.
Constant tables can be allocated within the entire Program memory address space (see the
LPM – Load Program memory instruction description).
Timing diagrams for instruction fetch and execution are presented in
ing” on page
“Memory Programming” on page 226
12.
“Boot Loader Support – Read-While-Write Self-Programming” on page
contains a detailed description on Flash Program-
®
AVR
®
ATmega8A. The AVR archi-
“Instruction Execution Tim-
ATmega8A
15
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