参数资料
型号: ATMEGA329V-8MUR
厂商: Atmel
文件页数: 10/146页
文件大小: 0K
描述: MCU AVR 32K FLASH 8MHZ 64QFN
产品培训模块: megaAVR Introduction
标准包装: 4,000
系列: AVR® ATmega
核心处理器: AVR
芯体尺寸: 8-位
速度: 8MHz
连通性: SPI,UART/USART,USI
外围设备: 欠压检测/复位,LCD,POR,PWM,WDT
输入/输出数: 54
程序存储器容量: 32KB(16K x 16)
程序存储器类型: 闪存
EEPROM 大小: 1K x 8
RAM 容量: 2K x 8
电压 - 电源 (Vcc/Vdd): 1.8 V ~ 5.5 V
数据转换器: A/D 8x10b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 64-VFQFN 裸露焊盘
包装: 带卷 (TR)
其它名称: ATMEGA329V-8MUR-ND
ATMEGA329V-8MURTR
18
2552K–AVR–04/11
ATmega329/3290/649/6490
7.
AVR ATmega329/3290/649/6490 Memories
This section describes the different memories in the ATmega329/3290/649/6490. The Atmel
AVR architecture has two main memory spaces, the Data Memory and the Program Memory
space. In addition, the ATmega329/3290/649/6490 features an EEPROM Memory for data stor-
age. All three memory spaces are linear.
7.1
In-System Reprogrammable Flash Program Memory
The ATmega329/3290/649/6490 contains 32/64Kbytes On-chip In-System Reprogrammable
Flash memory for program storage. Since all AVR instructions are 16 or 32 bits wide, the Flash
is organized as 16/32K x 16. For software security, the Flash Program memory space is divided
into two sections, Boot Program section and Application Program section.
The F lash memory has an endurance of at least 10,000 write/erase cycles. The
ATmega329/3290/649/6490 Program Counter (PC) is 14/15 bits wide, thus addressing the
16/32K program memory locations. The operation of Boot Program section and associated Boot
Lock bits for software protection are described in detail in “Boot Loader Support – Read-While-
description on Flash data serial downloading using the SPI pins or the JTAG interface.
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 “Instruction Execution Tim-
Figure 7-1.
Program Memory Map
0x0000
0x3FFF/0x7FFF
Program Memory
Application Flash Section
Boot Flash Section
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