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    參數(shù)資料
    型號: AT90USB647-AU
    廠商: Atmel
    文件頁數(shù): 18/106頁
    文件大?。?/td> 0K
    描述: IC AVR MCU 64K 64TQFP
    產(chǎn)品培訓(xùn)模塊: megaAVR Introduction
    標(biāo)準(zhǔn)包裝: 450
    系列: AVR®
    應(yīng)用: USB 微控制器
    核心處理器: AVR
    程序存儲器類型: 閃存(64 kB)
    控制器系列: AT90 USB
    RAM 容量: 4K x 8
    接口: 2 線串行,SPI 串行,USART,USB
    輸入/輸出數(shù): 48
    電源電壓: 2.7 V ~ 5.5 V
    工作溫度: -40°C ~ 85°C
    安裝類型: 表面貼裝
    封裝/外殼: 64-TQFP,64-VQFP
    包裝: 托盤
    供應(yīng)商設(shè)備封裝: 64-TQFP
    配用: ATSTK600-RC17-ND - STK600 ROUTING CARD AVR
    ATSTK525-ND - KIT STARTER FOR AT90USB
    AT90USBKEY2-ND - KIT DEMO FOR AT90USB
    其它名稱: AT90USB647-16AU
    AT90USB647-16AU-ND
    19
    7593L–AVR–09/12
    AT90USB64/128
    5.8.1
    Interrupt response time
    The interrupt execution response for all the enabled AVR interrupts is five clock cycles minimum.
    After five clock cycles the program vector address for the actual interrupt handling routine is exe-
    cuted. During these five clock cycle period, the Program Counter is pushed onto the Stack. The
    vector is normally a jump to the interrupt routine, and this jump takes three clock cycles. If an
    interrupt occurs during execution of a multi-cycle instruction, this instruction is completed before
    the interrupt is served. If an interrupt occurs when the MCU is in sleep mode, the interrupt exe-
    cution response time is increased by five clock cycles. This increase comes in addition to the
    start-up time from the selected sleep mode.
    A return from an interrupt handling routine takes five clock cycles. During these five clock cycles,
    the Program Counter (two bytes) is popped back from the Stack, the Stack Pointer is incre-
    mented by two, and the I-bit in SREG is set.
    Assembly code example
    sei
    ; set Global Interrupt Enable
    sleep
    ; enter sleep, waiting for interrupt
    ; note: will enter sleep before any pending
    ; interrupt(s)
    C code example
    __enable_interrupt(); /* set Global Interrupt Enable */
    __sleep(); /* enter sleep, waiting for interrupt */
    /* note: will enter sleep before any pending interrupt(s) */
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    AT90USB647-AUR 功能描述:8位微控制器 -MCU 64K Flash; 2K EEPROM 4K SRAM; 48 IO Pins 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
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    AT90USB64X 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:USB DFU Bootloader
    AT90USB82 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Microcontroller with 8/16K Bytes of ISP Flash and USB Controller