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  • 參數(shù)資料
    型號: MAX490CSA
    廠商: Maxim Integrated Products
    文件頁數(shù): 11/17頁
    文件大?。?/td> 0K
    描述: IC TXRX RS485/RS422 LOWPWR 8SOIC
    產(chǎn)品培訓模塊: Lead (SnPb) Finish for COTS
    Obsolescence Mitigation Program
    標準包裝: 100
    類型: 收發(fā)器
    驅(qū)動器/接收器數(shù): 1/1
    規(guī)程: RS422,RS485
    電源電壓: 4.75 V ~ 5.25 V
    安裝類型: 表面貼裝
    封裝/外殼: 8-SOIC(0.154",3.90mm 寬)
    供應(yīng)商設(shè)備封裝: 8-SOIC
    包裝: 管件
    Low-Power, Slew-Rate-Limited
    RS-485/RS-422 Transceivers
    SWITCHING CHARACTERISTICS—MAX481/MAX485, MAX490/MAX491, MAX1487
    (VCC = 5V ±5%, TA = TMIN to TMAX, unless otherwise noted.) (Notes 1, 2)
    DC ELECTRICAL CHARACTERISTICS (continued)
    (VCC = 5V ±5%, TA = TMIN to TMAX, unless otherwise noted.) (Notes 1, 2)
    mA
    795
    0V
    ≤ VO ≤ VCC
    IOSR
    Receiver Short-Circuit Current
    mA
    35
    250
    -7V
    ≤ VO ≤12V (Note 4)
    IOSD2
    Driver Short-Circuit Current,
    VO = Low
    mA
    35
    250
    -7V
    ≤ VO ≤12V (Note 4)
    IOSD1
    Driver Short-Circuit Current,
    VO = High
    MAX1487,
    RE = 0V or VCC
    250
    400
    350
    650
    ns
    10
    30
    60
    tPHL
    Driver Rise or Fall Time
    Figures 6 and 8, RDIFF = 54
    Ω, CL1 = CL2 = 100pF
    ns
    MAX490M, MAX491M
    MAX490C/E, MAX491C/E
    20
    90
    150
    MAX481, MAX485, MAX1487
    MAX490M, MAX491M
    MAX490C/E, MAX491C/E
    MAX481, MAX485, MAX1487
    Figures 6 and 8, RDIFF = 54
    Ω,
    CL1 = CL2 = 100pF
    MAX481 (Note 5)
    Figures 5 and 11, CRL = 15pF, S2 closed
    Figures 5 and 11, CRL = 15pF, S1 closed
    Figures 5 and 11, CRL = 15pF, S2 closed
    Figures 5 and 11, CRL = 15pF, S1 closed
    Figures 6 and 10, RDIFF = 54
    Ω,
    CL1 = CL2 = 100pF
    Figures 6 and 8,
    RDIFF = 54
    Ω,
    CL1 = CL2 = 100pF
    Figures 6 and 10,
    RDIFF = 54
    Ω,
    CL1 = CL2 = 100pF
    CONDITIONS
    ns
    510
    tSKEW
    ns
    50
    200
    600
    tSHDN
    Time to Shutdown
    Mbps
    2.5
    fMAX
    Maximum Data Rate
    ns
    20
    50
    tHZ
    Receiver Disable Time from High
    ns
    10
    30
    60
    tPLH
    20
    50
    tLZ
    Receiver Disable Time from Low
    ns
    20
    50
    tZH
    Driver Input to Output
    Receiver Enable to Output High
    ns
    20
    50
    tZL
    Receiver Enable to Output Low
    20
    90
    200
    ns
    13
    40
    70
    tHZ
    tSKD
    Driver Disable Time from High
    | tPLH - tPHL | Differential
    Receiver Skew
    ns
    40
    70
    tLZ
    Driver Disable Time from Low
    ns
    40
    70
    tZL
    Driver Enable to Output Low
    315
    40
    ns
    515
    25
    ns
    315
    40
    tR, tF
    20
    90
    200
    Driver Output Skew to Output
    tPLH, tPHL
    Receiver Input to Output
    40
    70
    tZH
    Driver Enable to Output High
    UNITS
    MIN
    TYP
    MAX
    SYMBOL
    PARAMETER
    CONDITIONS
    UNITS
    MIN
    TYP
    MAX
    SYMBOL
    PARAMETER
    230
    400
    300
    500
    MAX481/MAX485,
    RE = 0V or VCC
    500
    900
    MAX490/MAX491,
    DE, DI, RE = 0V or VCC
    300
    500
    MAX488/MAX489,
    DE, DI, RE = 0V or VCC
    120
    250
    DE = VCC
    300
    500
    DE = 0V
    DE = VCC
    DE = 0V
    A
    MAX481/483/487, DE = 0V, RE = VCC
    0.1
    10
    ISHDN
    Supply Current in Shutdown
    120
    250
    ICC
    No-Load Supply Current
    (Note 3)
    DE = 5V
    DE = 0V
    MAX483
    MAX487
    MAX483/MAX487,
    RE = 0V or VCC
    Figures 7 and 9, CL = 100pF, S2 closed
    Figures 7 and 9, CL = 100pF, S1 closed
    Figures 7 and 9, CL = 15pF, S1 closed
    Figures 7 and 9, CL = 15pF, S2 closed
    A
    MAX481/MAX483/MAX485
    MAX487–MAX491/MAX1487
    Maxim Integrated
    3
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