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74HC390; 74HCT390

Dual decade ripple counter

The 74HC390; 74HCT390 is a dual 4-bit decade ripple counter divided into four separately clocked sections. The counters have two divide-by-2 sections and two divide-by-5 sections. These sections share an asynchronous master reset input (nMR) and can be used in a BCD decade or bi-quinary configuration. If master reset inputs (1MR and 2MR) are used to simultaneously clear all 8 bits of the counter, a number of counting configurations are possible within one package. The separate clocks (nCP0 and nCP1) of each section allow ripple counter or frequency division applications of divide-by-2, 4, 5, 10, 20, 25, 50 or 100. Each section is triggered by the HIGH-to-LOW transition of the clock inputs (nCP0 and nCP1). For BCD decade operation, the nQ0 output is connected to the nCP1 input of the divide-by-5 section. For bi-quinary decade operation, the nQ3 output is connected to the nCP0 input and nQ0 becomes the decade output. A HIGH on the nMR input overrides the clocks and sets the four outputs LOW. This device features reduced input threshold levels to allow interfacing to TTL logic levels. Inputs also include clamp diodes, this enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.

特性

  • Input levels:

    • For 74HC390: CMOS level

    • For 74HCT390: TTL level

  • Two BCD decade or bi-quinary counters

  • One device can be configured to divide-by-2, 4, 5, 10, 20, 25, 50 or 100

  • Two master reset inputs to clear each decade counter individually

  • Supply voltage range from 4.5 V to 5.5 V

  • High noise immunity

  • Latch-up performance exceeds 100 mA per JESD 78 Class II Level B

  • Complies with JEDEC standard JESD7A (4.5 V to 5.5 V)

  • ESD protection:
    • HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V

    • CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V

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

参数类型

Type numberProduct statusVCC (V)Output drive capability (mA)Logic switching levelstpd (ns)fmax (MHz)Power dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
74HC390DProduction2.0 - 6.0± 5.2CMOS1460low-40~125772.535SO16
74HC390PWProduction2.0 - 6.0± 5.2CMOS1460low-40~1251111.338.8TSSOP16
74HCT390DProduction4.5 - 5.5± 4TTL1855low-40~125762.534.7SO16
74HCT390PWProduction4.5 - 5.5± 4TTL1855low-40~125---TSSOP16

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))
74HC390D
SO16
(SOT109-1)
SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
SOT109-1_653Active74HC390D74HC390D,653
( 9337 147 20653 )
74HC390PW
TSSOP16
(SOT403-1)
SOT403-1SSOP-TSSOP-VSO-WAVE
SOT403-1_118ActiveHC39074HC390PW,118
( 9351 890 60118 )
74HCT390D
SO16
(SOT109-1)
SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
SOT109-1_653Active74HCT390D74HCT390D,653
( 9337 152 00653 )
74HCT390PW
TSSOP16
(SOT403-1)
SOT403-1SSOP-TSSOP-VSO-WAVE
SOT403-1_118Active4HCT39074HCT390PWHL
( 9356 912 09118 )

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))
74HC390D
SO16
(SOT109-1)
SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
SOT109-1_652Withdrawn / End-of-life74HC390D74HC390D,652
( 9337 147 20652 )
74HC390PW
TSSOP16
(SOT403-1)
SOT403-1SSOP-TSSOP-VSO-WAVE
SOT403-1_112Withdrawn / End-of-lifeHC39074HC390PW,112
( 9351 890 60112 )
74HCT390D
SO16
(SOT109-1)
SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
SOT109-1_652Withdrawn / End-of-life74HCT390D74HCT390D,652
( 9337 152 00652 )

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
74HC390D9337147206522021-12-312022-06-3074HC390D
    74HC390PW9351890601122021-12-312022-06-3074HC390PW
      74HCT390D9337152006522021-12-312022-06-3074HCT390D

        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
        74HC390D74HC390D,65374HC390Dweek 6, 2004
        74HC390PW74HC390PW,11874HC390PWweek 10, 2005
        74HCT390D74HCT390D,65374HCT390Dweek 6, 2004
        74HCT390PW74HCT390PWHL74HCT390PW

        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
        74HC390D74HC390D,65274HC390Dweek 6, 2004
        74HC390PW74HC390PW,11274HC390PWweek 10, 2005
        74HCT390D74HCT390D,65274HCT390Dweek 6, 2004
        品质及可靠性免责声明

        文档 (9)

        文件名称标题类型日期
        74HC_HCT390Dual decade ripple counterData sheet2024-03-19
        AN11044Pin FMEA 74HC/74HCT familyApplication note2019-01-09
        HCT_USER_GUIDEHC/T User GuideUser manual1997-10-31
        SO-SOJ-WAVEFootprint for wave solderingWave soldering2009-10-08
        SO-SOJ-REFLOWFootprint for reflow solderingReflow soldering2009-10-08
        WAVE_BG-BD-1Wave soldering profileWave soldering2021-09-08
        SOT109-1plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.75 mm bodyPackage information2023-11-07
        SOT403-1plastic, thin shrink small outline package; 16 leads; 5 mm x 4.4 mm x 1.2 mm bodyPackage information2023-11-08
        SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08

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