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    參數(shù)資料
    

    


    


    
型號：
MAX3221ECAE

    

    
廠商：
MAXIM INTEGRATED PRODUCTS INC

    

    
元件分類：
通用總線功能

    

    
英文描述：
Video/Imaging Fixed-Point Digital Signal Processor 548-FCBGA

    

    
中文描述：
LINE TRANSCEIVER, PDSO16

    

    
封裝：
SSOP-16

    

    
文件頁數(shù)：
8/16頁

    

    
文件大小：
153K

    

    
代理商：
MAX3221ECAE


    

    

    

	
    
    
    

    
    
	
    M
    ±15kV ESD-Protected, 1μA, 3.0V to 5.5V, 250kbps,
    RS -232 Transc eivers with AutoS hutdown
    8
    _______________________________________________________________________________________
    Table 1.  Output Control Truth Table
    +0.3V
    -0.3V
    INVALID
    TOMAX32_ _E
    POWER SUPPLY
    AND TRANSMITTERS
    R_IN
    * TRANSMITTERS ARE DISABLED, REDUCING SUPPLY CURRENT TO1
    μ
    A IF 
       ALL RECEIVER INPUTS ARE BETWEEN +0.3V AND -0.3V FOR 
    AT LEAST
     30
    μ
    s.
    30μs
    COUNTER
    R
    Figure 3a.  MAX32_ _E Entering 1μA Supply Mode via
    AutoShutdown
    +2.7V
    -2.7V
    INVALID
    TOMAX32_ _E
    POWER SUPPLY
    R_IN
    * TRANSMITTERS ARE ENABLED IF:
       ANY RECEIVER INPUT IS GREATER THAN +2.7V OR LESS THAN -2.7V.
       ANY RECEIVER INPUT HAS BEEN BETWEEN +0.3V AND -0.3V FOR 
    LESS THAN
     30
    μ
    s.
    30μs
    COUNTER
    R
    Figure 3b.  MAX32__E with Transmitters Enabled Using
    AutoShutdown
    X = Don’t Care
    The MAX3221E/MAX3223E/MAX3243E feature an
    INVALID
     output that is enabled low when no valid RS-232
    signal levels have been detected on all receiver inputs.
    INVALID
     is functional in any mode (Figures 3 and 5).
    AutoS hutdown
    The MAX3221E/MAX3223E/MAX3243E achieve a 1μA
    supply current with Maxim’s new AutoShutdown fea-
    ture, which operates when FORCEON is low and
    FORCEOFF
     is high. When these devices sense no valid 
    signal levels on all receiver inputs for 30μs, the on-
    board charge pump and drivers are shut off, reducing
    supply current to 1μA. This occurs if the RS-232 cable 
    is disconnected or the connected peripheral transmit-
    ters are turned off. The device turns on again when a
    valid level is applied to any RS-232 receiver input. As a
    result, the system saves power without changes to the
    existing BIOS or operating system. 
    0
    0
    0
    1
    X
    1
    FORCEON
    X
    Active
    Active
    Active
    R2OUTB
    (MAX3243E)
    Active
    Active
    Active
    Active
    Active
    Active
    High-Z
    R_OUT
    (MAX3221E/
    MAX3223E)
    Active
    Active
    High-Z
    High-Z
    1
    1
    1
    1
    0
    1
    FORCEOFF
    0
    Active
    High-Z
    Active
    T_OUT
    High-Z
    Active
    Active
    High-Z
    Active
    High-Z
    Active
    R_OUT
    (MAX3243E)
    High-Z
    Active
    Active
    High-Z
    0
    0
    Yes
    No
    Normal Operation
    (AutoShutdown)
    Yes
    0
    X
    Normal Operation
    (Forced On)
    X
    Shutdown
    (Forced Off)
    X
    EN
    (MAX3221E/
    MAX3223E)
    VALID
    RECEIVER
    LEVEL
    0
    X
    OPERATION 
    STATUS
    1
    1
    1
    0
    Active
    High-Z
    1
    High-Z
    High-Z
    Shutdown
    (AutoShutdown)
    No
    1
    
    
    
    
    
    


    


    

    相關(guān)PDF資料
    		

    PDF描述
    		

    
    

    
MAX3223E
Video/Imaging Fixed-Point Digital Signal Processor 548-FCBGA

    

    
MAX3223ECAP
5V High-Speed RS-232 Transceivers with 0.1uF Capacitors

    

    
MAX3223ECPP
Video/Imaging Fixed-Point Digital Signal Processor 548-FCBGA

    

    
MAX3223EEAP
5V High-Speed RS-232 Transceivers with 0.1uF Capacitors

    

    
MAX3223EEPP
5V High-Speed RS-232 Transceivers with 0.1uF Capacitors

    

    

    

    


    


    

    相關(guān)代理商/技術(shù)參數(shù)
    		

    參數(shù)描述
    		

    
    

    
MAX3221ECAE+
功能描述:RS-232接口集成電路 1uA 3-5.5V Tcvr w/AutoShutdown RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝:

    

    
MAX3221ECAE+G071
功能描述:RS-232接口集成電路 115kV ESD Protected 1Tx / 1Rx RS-232 Transceiver RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝:

    

    
MAX3221ECAE+T
功能描述:RS-232接口集成電路 1uA 3-5.5V Tcvr w/AutoShutdown RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝:

    

    
MAX3221ECAE+TG071
功能描述:RS-232接口集成電路 15kV ESD-Protected 1 A 3.0V to 5.5V 250kbps RS-232 Transceivers with AutoShutdown RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝:

    

    
MAX3221ECAE-T
功能描述:RS-232接口集成電路 RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝:

    

    
    
    
    
	
    	
    
    
     
     
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