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參數(shù)資料
| 型號： | ATMEGA3250-16AI |
| 廠商： | Atmel |
| 文件頁數(shù)： | 26/29頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AVR MCU 32K 16MHZ 100TQFP |
| 產(chǎn)品培訓(xùn)模塊： | megaAVR Introduction |
| 標(biāo)準(zhǔn)包裝： | 90 |
| 系列： | AVR® ATmega |
| 核心處理器： | AVR |
| 芯體尺寸： | 8-位 |
| 速度： | 16MHz |
| 連通性： | SPI，UART/USART，USI |
| 外圍設(shè)備： | 欠壓檢測/復(fù)位，POR，PWM，WDT |
| 輸入/輸出數(shù)： | 69 |
| 程序存儲器容量： | 32KB（16K x 16） |
| 程序存儲器類型： | 閃存 |
| EEPROM 大?。?/td> | 1K x 8 |
| RAM 容量： | 2K 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： | 100-TQFP |
| 包裝： | 托盤 |
| 配用： | ATSTK600-TQFP100-ND - STK600 SOCKET/ADAPTER 100-TQFP ATSTK504-ND - STARTER KIT AVR EXP MOD 100P LCD |
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6
2570NS–AVR–05/11
ATmega325/3250/645/6450
2.2
Comparison between ATmega325, ATmega3250, ATmega645 and ATmega6450
The ATmega325, ATmega3250, ATmega645, and ATmega6450 differ only in memory sizes, pin
count and pinout. Table 2-1 on page 6 summarizes the different configurations for the four
devices.
2.3
Pin Descriptions
The following section describes the I/O-pin special functions.
2.3.1
V
CC
Digital supply voltage.
2.3.2
GND
Ground.
2.3.3
Port A (PA7..PA0)
Port A is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The
Port A output buffers have symmetrical drive characteristics with both high sink and source
capability. As inputs, Port A pins that are externally pulled low will source current if the pull-up
resistors are activated. The Port A pins are tri-stated when a reset condition becomes active,
even if the clock is not running.
2.3.4
Port B (PB7..PB0)
Port B is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The
Port B output buffers have symmetrical drive characteristics with both high sink and source
capability. As inputs, Port B pins that are externally pulled low will source current if the pull-up
resistors are activated. The Port B pins are tri-stated when a reset condition becomes active,
even if the clock is not running.
Port B has better driving capabilities than the other ports.
Po rt B al so se rve s t h e f u nct i o n s of va ri ou s spe c ial f e a t ur es of t h e At me l
ATmega325/3250/645/6450 as listed on page 68.
2.3.5
Port C (PC7..PC0)
Port C is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The
Port C output buffers have symmetrical drive characteristics with both high sink and source
capability. As inputs, Port C pins that are externally pulled low will source current if the pull-up
resistors are activated. The Port C pins are tri-stated when a reset condition becomes active,
even if the clock is not running.
Table 2-1.
Configuration Summary
Device
Flash
EEPROM
RAM
General Purpose
I/O Pins
ATmega325
32Kbytes
1Kbytes
2Kbytes
54
ATmega3250
32Kbytes
1Kbytes
2Kbytes
69
ATmega645
64Kbytes
2Kbytes
4Kbytes
54
ATmega6450
64Kbytes
2Kbytes
4Kbytes
69
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ATMEGA3250-16AJ | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Microcontroller with In-System Programmable Flash |
| ATmega3250-16AU | 功能描述:8位微控制器 -MCU AVR 32K FLASH 1K EE 2K SRAM ADC 5V 5V RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| ATMEGA3250-16AUR | 功能描述:8位微控制器 -MCU AVR 32K FLSH 1K EE2K SRAM ADC 5V-16MHZ 5V RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| ATMEGA3250A | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Microcontroller with 16/32/64K Bytes In-System Programmable Flash |
| ATMEGA3250A-AN | 功能描述:8位微控制器 -MCU AVR 32K FL 2K SRAM 1KB EE 20 MHZ GRN RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
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