參數(shù)資料
型號(hào): ATMEGA16A-MUR
廠商: Atmel
文件頁(yè)數(shù): 52/88頁(yè)
文件大小: 0K
描述: MCU AVR 16KB FLASH 16MHZ 44QFN
產(chǎn)品培訓(xùn)模塊: megaAVR Introduction
標(biāo)準(zhǔn)包裝: 4,000
系列: AVR® ATmega
核心處理器: AVR
芯體尺寸: 8-位
速度: 16MHz
連通性: I²C,SPI,UART/USART
外圍設(shè)備: 欠壓檢測(cè)/復(fù)位,POR,PWM,WDT
輸入/輸出數(shù): 32
程序存儲(chǔ)器容量: 16KB(8K x 16)
程序存儲(chǔ)器類(lèi)型: 閃存
EEPROM 大?。?/td> 512 x 8
RAM 容量: 1K x 8
電壓 - 電源 (Vcc/Vdd): 2.7 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x10b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 44-VFQFN 裸露焊盤(pán)
包裝: 帶卷 (TR)
16
8154B–AVR–07/09
ATmega16A
7.
AVR Memories
7.1
Overview
This section describes the different memories in the ATmega16A. The AVR architecture has two
main memory spaces, the Data Memory and the Program Memory space. In addition, the
ATmega16A features an EEPROM Memory for data storage. All three memory spaces are linear
and regular.
7.2
In-System Reprogrammable Flash Program Memory
The ATmega16A contains 16K bytes 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 8K
x 16. 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 ATmega16A
Program Counter (PC) is 13 bits wide, thus addressing the 8K program memory locations. The
operation of Boot Program section and associated Boot Lock bits for software protection are
250. “Memory Programming” on page 264 contains a detailed 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
$0000
$1FFF
Application Flash Section
Boot Flash Section
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