参数资料
型号: ATTINY2313A-SUR
厂商: Atmel
文件页数: 68/172页
文件大小: 0K
描述: MCU AVR 2KB FLASH 20MHZ 20SOIC
产品培训模块: tinyAVR Introduction
标准包装: 1,000
系列: AVR® ATtiny
核心处理器: AVR
芯体尺寸: 8-位
速度: 20MHz
连通性: I²C,SPI,UART/USART
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 18
程序存储器容量: 2KB(1K x 16)
程序存储器类型: 闪存
EEPROM 大小: 128 x 8
RAM 容量: 128 x 8
电压 - 电源 (Vcc/Vdd): 1.8 V ~ 5.5 V
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 20-SOIC(0.295",7.50mm 宽)
包装: 带卷 (TR)
其它名称: ATTINY2313A-SUR-ND
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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