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  • 參數(shù)資料
    型號: SC16C654BIBS,557
    廠商: NXP Semiconductors
    文件頁數(shù): 22/58頁
    文件大?。?/td> 0K
    描述: IC QUAD UART 64BYTE 48HVQFN
    標(biāo)準(zhǔn)包裝: 2,450
    特點(diǎn): 故障啟動位檢測
    通道數(shù): 4,QUART
    FIFO's: 64 字節(jié)
    電源電壓: 2.5V,3.3V,5V
    帶自動流量控制功能:
    帶IrDA 編碼器/解碼器:
    帶故障啟動位檢測功能:
    帶調(diào)制解調(diào)器控制功能:
    帶CMOS:
    安裝類型: 表面貼裝
    封裝/外殼: 48-VFQFN 裸露焊盤
    供應(yīng)商設(shè)備封裝: 48-HVQFN EP(6x6)
    包裝: 托盤
    其它名稱: 935279073557
    SC16C654BIBS
    SC16C654BIBS-ND
    29
    7674F–AVR–09/09
    ATmega164P/324P/644P
    7.
    System Clock and Clock Options
    7.1
    Clock Systems and their Distribution
    Figure 7-1 presents the principal clock systems in the AVR and their distribution. All of the clocks
    need not be active at a given time. In order to reduce power consumption, the clocks to modules
    not being used can be halted by using different sleep modes, as described in “Power Manage-
    ment and Sleep Modes” on page 41. The clock systems are detailed below.
    Figure 7-1.
    Clock Distribution
    7.1.1
    CPU Clock – clk
    CPU
    The CPU clock is routed to parts of the system concerned with operation of the AVR core.
    Examples of such modules are the General Purpose Register File, the Status Register and the
    data memory holding the Stack Pointer. Halting the CPU clock inhibits the core from performing
    general operations and calculations.
    7.1.2
    I/O Clock – clk
    I/O
    The I/O clock is used by the majority of the I/O modules, like Timer/Counters, SPI, and USART.
    The I/O clock is also used by the External Interrupt module, but note that some external inter-
    rupts are detected by asynchronous logic, allowing such interrupts to be detected even if the I/O
    clock is halted. Also note that start condition detection in the USI module is carried out asynchro-
    nously when clk
    I/O is halted, TWI address recognition in all sleep modes.
    General I/O
    Modules
    Asynchronous
    Timer/Counter
    CPU Core
    RAM
    clk
    I/O
    clk
    ASY
    AVR Clock
    Control Unit
    clk
    CPU
    Flash and
    EEPROM
    clk
    FLASH
    Source clock
    Watchdog Timer
    Watchdog
    Oscillator
    Reset Logic
    Clock
    Multiplexer
    Watchdog clock
    Calibrated RC
    Oscillator
    Timer/Counter
    Oscillator
    Crystal
    Oscillator
    Low-frequency
    Crystal Oscillator
    External Clock
    ADC
    clk
    ADC
    System Clock
    Prescaler
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    參數(shù)描述
    SC16C654BIBS-F 功能描述:UART 接口集成電路 16CB 2.5V-5V 4CH UART 64B FIFO RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
    SC16C654BIBS-S 功能描述:UART 接口集成電路 16CB 2.5V-5V 4CH UART 64B FIFO RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
    SC16C654BIEC 功能描述:UART 接口集成電路 16CB 2.5V-5V 4CH UART 64B FIFO RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
    SC16C654BIEC,528 功能描述:UART 接口集成電路 16CB 2.5V-5V 4CH RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
    SC16C654BIEC,551 功能描述:UART 接口集成電路 4CH. UART 64B FIFO RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel