參數(shù)資料
型號(hào): ATTINY2313A-MUR
廠商: Atmel
文件頁數(shù): 68/172頁
文件大小: 0K
描述: MCU AVR 2K FLASH 20MHZ 20QFN
產(chǎn)品培訓(xùn)模塊: tinyAVR Introduction
標(biāo)準(zhǔn)包裝: 6,000
系列: AVR® ATtiny
核心處理器: AVR
芯體尺寸: 8-位
速度: 20MHz
連通性: I²C,SPI,UART/USART
外圍設(shè)備: 欠壓檢測/復(fù)位,POR,PWM,WDT
輸入/輸出數(shù): 18
程序存儲(chǔ)器容量: 2KB(1K x 16)
程序存儲(chǔ)器類型: 閃存
EEPROM 大?。?/td> 128 x 8
RAM 容量: 128 x 8
電壓 - 電源 (Vcc/Vdd): 1.8 V ~ 5.5 V
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 20-WFQFN 裸露焊盤
包裝: 帶卷 (TR)
16
8246B–AVR–09/11
ATtiny2313A/4313
5.
Memories
The AVR architecture makes a distinction between program memory and data memory, locating
each memory type in a separate address space. Executable code is located in non-volatile pro-
gram memory (Flash), whereas data can be placed in either volatile (SRAM) or non-volatile
memory (EEPROM). See Figure 5-1, below.
Figure 5-1.
Memory Overview.
All memory spaces are linear and regular.
5.1
Program Memory (Flash)
ATtiny2313A/4313 contains 2/4K byte of on-chip, in-system reprogrammable Flash memory for
program storage. Flash memories are non-volatile, i.e. they retain stored information even when
not powered.
Since all AVR instructions are 16 or 32 bits wide, the Flash is organized as 1024/2048 x 16 bits.
The Program Counter (PC) is 10/11 bits wide, thus capable of addressing all 1024/2048 loca-
tions of program memory, as illustrated in Table 5-1, below.
Constant tables can be allocated within the entire address space of program memory. See
instructions LPM (Load Program Memory), and SPM (Store Program Memory) in “Instruction Set
Summary” on page 257. Flash program memory can also be programmed from an external
Timing diagrams for instruction fetch and execution are presented in “Instruction Execution Tim-
The Flash memory has a minimum endurance of 10,000 write/erase cycles.
GENERAL PURPOSE
REGISTER FILE
I/O REGISTER FILE
EXTENDED
I/O REGISTER FILE
DATA MEMORY
PROGRAM MEMORY
FLASH
SRAM
EEPROM
Table 5-1.
Size of Program Memory (Flash).
Device
Flash Size
Address Range
ATtiny2313A
2KB
1024 words
0x0000 – 0x03FF
ATtiny4313
4KB
2048 words
0x0000 – 0x07FF
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