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    參數(shù)資料
    型號: ATMEGA6490-16AI
    廠商: Atmel
    文件頁數(shù): 114/146頁
    文件大小: 0K
    描述: IC AVR MCU FLASH 64K 5V 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,LCD,POR,PWM,WDT
    輸入/輸出數(shù): 68
    程序存儲器容量: 64KB(32K x 16)
    程序存儲器類型: 閃存
    EEPROM 大?。?/td> 2K x 8
    RAM 容量: 4K 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
    43
    2552K–AVR–04/11
    ATmega329/3290/649/6490
    Figure 10-3. MCU Start-up, RESET Extended Externally
    10.4
    External Reset
    An External Reset is generated by a low level on the RESET pin. Reset pulses longer than the
    minimum pulse width (see “System and Reset Characteristics” on page 330) will generate a
    reset, even if the clock is not running. Shorter pulses are not guaranteed to generate a reset.
    When the applied signal reaches the Reset Threshold Voltage – V
    RST – on its positive edge, the
    delay counter starts the MCU after the Time-out period – t
    TOUT – has expired.
    Figure 10-4. External Reset During Operation
    10.5
    Brown-out Detection
    ATmega329/3290/649/6490 has an On-chip Brown-out Detection (BOD) circuit for monitoring
    the V
    CC level during operation by comparing it to a fixed trigger level. The trigger level for the
    BOD can be selected by the BODLEVEL Fuses. The trigger level has a hysteresis to ensure
    spike free Brown-out Detection. The hysteresis on the detection level should be interpreted as
    V
    BOT+ = VBOT + VHYST/2 and VBOT- = VBOT - VHYST/2.
    When the BOD is enabled, and V
    CC decreases to a value below the trigger level (VBOT- in Figure
    10-5), the Brown-out Reset is immediately activated. When V
    CC increases above the trigger
    level (V
    BOT+ in Figure 10-5), the delay counter starts the MCU after the Time-out period tTOUT has
    expired.
    The BOD circuit will only detect a drop in V
    CC if the voltage stays below the trigger level for lon-
    ger than t
    RESET
    TIME-OUT
    INTERNAL
    RESET
    t
    TOUT
    V
    POT
    V
    RST
    VCC
    CC
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    參數(shù)描述
    ATmega6490-16AU 功能描述:8位微控制器 -MCU AVR 64K FLASH 2K EE 4K SRAM ADC LCD 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
    ATMEGA6490-16AUR 功能描述:8位微控制器 -MCU AVR 64KB FLSH 2KB EE 4KB SRAM LCD16MHz,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
    ATMEGA6490A-AU 功能描述:8位微控制器 -MCU AVR 64KB FLSH 2KB EE 4KB SRAM-20MHz, IND 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
    ATMEGA6490A-AUR 功能描述:8位微控制器 -MCU AVR 64KB FLSH 2KB EE 4KB SRAM-20MHz, IND 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
    ATMEGA6490P-AU 功能描述:8位微控制器 -MCU AVR 64KB FLSH 2KB EE 4KB SRAM LCD-16MHz 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