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    HEF4894B

    12-stage shift-and-store register LED driver

    The HEF4894B is a 12-stage serial shift register. It has a storage latch associated with each stage for strobing data from the serial input (D) to the parallel LED driver outputs (QP0 to QP11). Data is shifted on positive-going clock (CP) transitions. The data in each shift register stage is transferred to the storage register when the strobe (STR) input is HIGH. Data in the storage register appears at the output whenever the output enable (OE) input signal is HIGH.

    Two serial outputs (QS1 and QS2) are available for cascading a number of HEF4894B devices. Serial data is available at QS1 on positive-going clock edges to allow high-speed operation in cascaded systems with a fast clock rise time. The same serial data is available at QS2 on the next negative going clock edge. This is used for cascading HEF4894B devices when the clock has a slow rise time.

    It operates over a recommended VDD power supply range of 3 V to 15 V referenced to VSS (usually ground). Unused inputs must be connected to VDD, VSS, or another input.

    特性

    • Wide supply voltage range from 3.0 V to 15.0 V

    • CMOS low power dissipation

    • High noise immunity

    • Fully static operation

    • 5 V, 10 V, and 15 V parametric ratings

    • Standardized symmetrical output characteristics

    • Complies with JEDEC standard JESD 13-B

    • ESD protection:

      • HBM JESD22-A114F exceeds 2000 V

      • MM JESD22-A115-B exceeds 200 V

    • Specified from -40 °C to +85 °C and from -40 °C to +125 °C

    参数类型

    Type numberProduct statusVCC (V)Logic switching levelsOutput drive capability (mA)tpd (ns)fmax (MHz)Nr of bitsPower dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
    HEF4894BTProduction3.0 - 15CMOS-20452812medium-40~857720.053SO20
    HEF4894BTTProduction3.0 - 15CMOS-20452812medium-40~85963.339TSSOP20

    封装

    型号封装尺寸版本回流焊/波峰焊包装状态标示可订购的器件编号，（订购码(12NC)）
    HEF4894BT
    SO20
    (SOT163-1)     		SOT163-1WAVE_BG-BD-1
    		SOT163-1_118ActiveHEF4894BTHEF4894BT,118
    ( 9351 943 80118 )
    HEF4894BTT
    TSSOP20
    (SOT360-1)     		SOT360-1SSOP-TSSOP-VSO-WAVE
    		SOT360-1_118ActiveHEF4894HEF4894BTT,118
    ( 9352 831 58118 )

    下表中的版本已停产。参见表 停产信息 了解更多信息。

    型号封装尺寸版本回流焊/波峰焊包装状态标示可订购的器件编号，（订购码(12NC)）
    HEF4894BT
    SO20
    (SOT163-1)     		SOT163-1WAVE_BG-BD-1
    		SOT163-1_112Withdrawn / End-of-lifeHEF4894BTHEF4894BT,112
    ( 9351 943 80112 )

    停产信息

    型号可订购的器件编号，（订购码(12NC)）最后一次购买日期最后一次交货日期替代产品状态备注
    HEF4894BT9351943801122021-12-312022-06-30HEF4894BT
      HEF4894BTT9352831581122018-12-312019-06-30HEF4894BTT

        环境信息

        型号可订购的器件编号化学成分RoHSRHF指示符无铅转换日期
        HEF4894BTHEF4894BT,118HEF4894BTweek 4, 2004
        HEF4894BTTHEF4894BTT,118HEF4894BTTAlways Pb-free

        下表中的版本已停产。参见表 停产信息 了解更多信息。

        型号可订购的器件编号化学成分RoHSRHF指示符无铅转换日期
        HEF4894BTHEF4894BT,112HEF4894BTweek 4, 2004
        品质及可靠性免责声明

        文档 (7)

        文件名称标题类型日期
        HEF4894B12-stage shift-and-store register LED driverData sheet2021-11-23
        AN11051Pin FMEA HEF4000 familyApplication note2019-01-09
        Nexperia_Selection_guide_2023Nexperia Selection Guide 2023Selection guide2023-05-10
        SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08
        SOT360-1plastic, thin shrink small outline package; 20 leads; 0.65 mm pitch; 6.5 mm x 4.4 mm x 1.1 mm bodyPackage information2022-06-21
        SOT163-1plastic, small outline package; 20 leads; 1.27 mm pitch; 12.8 mm x 7.5 mm x 2.65 mm bodyPackage information2022-06-20
        WAVE_BG-BD-1Wave soldering profileWave soldering2021-09-08

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