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74HC594; 74HCT594

8-bit shift register with output register

The 74HC594; 74HCT594 is an 8-bit serial-in/serial or parallel-out shift register with a storage register. Separate clock and reset inputs are provided on both shift and storage registers. The device features a serial input (DS) and a serial output (Q7S) to enable cascading. Data is shifted on the LOW-to-HIGH transitions of the SHCP input, and the data in the shift register is transferred to the storage register on a LOW-to-HIGH transition of the STCP input. If both clocks are connected together, the shift register will always be one clock pulse ahead of the storage register. A LOW level on one of the two register reset pins (SHR and STR) will clear the corresponding register. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.

Features and benefits

  • Synchronous serial input and output
  • 8-bit parallel output
  • Shift and storage registers have independent direct clear and clocks
  • Independent clocks for shift and storage registers
  • 100 MHz (typical)
  • Wide supply voltage range from 2.0 V to 6.0 V
  • CMOS low power dissipation
  • High noise immunity
  • Latch-up performance exceeds 100 mA per JESD 78 Class II Level B
  • Input levels:
    • For 74HC594: CMOS level
    • For 74HCT594: TTL level
  • Complies with JEDEC standards
    • JESD8C (2.7 V to 3.6 V)
    • JESD7A (2.0 V to 6.0 V)
  • ESD protection:
    • HBM JESD22-A114F exceeds 2000 V
    • MM JESD22-A115-A exceeds 200 V (C = 200 pF, R = 0 Ω)
  • Multiple package options
  • Specified from -40 °C to +85 °C and from -40 °C to +125 °C

Applications

  • Serial-to parallel data conversion
  • Remote control holding register

Parametrics

Type numberProduct statusVCC (V)Logic switching levelsOutput drive capability (mA)tpd (ns)fmax (MHz)No of bitsPower dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
74HC594DProduction2.0 - 6.0CMOS± 7.8141098low-40~125866.945SO16
74HC594DB
NRND
Not for design in-----------SSOP16
74HC594PWProduction2.0 - 6.0CMOS± 7.8141098low-40~125---TSSOP16
74HCT594DProduction4.5 - 5.5TTL± 6151008low-40~125866.945.1SO16
74HCT594DB
NRND
Not for design in-----------SSOP16
74HCT594PWProduction-----------TSSOP16

Package

Type numberPackagePackage informationReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
74HC594D
SO16
(SOT109-1)
SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
Reel 13" Q1/T1Active74HC594D74HC594D,118
( 9350 433 80118 )
74HC594DB
NRND

SSOP16
(SOT338-1)
SOT338-1SSOP-TSSOP-VSO-REFLOW
SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1ActiveHC59474HC594DB,118
( 9351 901 60118 )
Bulk PackActiveHC59474HC594DB,112
( 9351 901 60112 )
74HC594PW
TSSOP16
(SOT403-1)
SOT403-1SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1ActiveHC594PW74HC594PWJ
( 9356 912 21118 )
74HCT594D
SO16
(SOT109-1)
SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
Reel 13" Q1/T1Active74HCT594D74HCT594D,118
( 9350 433 90118 )
74HCT594DB
NRND

SSOP16
(SOT338-1)
SOT338-1SSOP-TSSOP-VSO-REFLOW
SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1ActiveHCT59474HCT594DB,118
( 9352 809 39118 )
Bulk PackActiveHCT59474HCT594DB,112
( 9352 809 39112 )
74HCT594PW
TSSOP16
(SOT403-1)
SOT403-1SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1Active4HCT59474HCT594PWJ
( 9356 912 14118 )

The variants in the table below are discontinued. See the table Discontinuation information for more information.

Type numberPackagePackage informationReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
74HC594D
SO16
(SOT109-1)
SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
Bulk PackDiscontinued / End-of-life74HC594D74HC594D,112
( 9350 433 80112 )
74HCT594D
SO16
(SOT109-1)
SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
Bulk PackDiscontinued / End-of-life74HCT594D74HCT594D,112
( 9350 433 90112 )

Discontinuation information

Type numberOrderable part number, (Ordering code (12NC))Last time buy dateLast time delivery dateReplacement productStatusComments
74HC594D9350433801122021-12-312022-06-3074HC594D
    74HCT594D9350433901122021-12-312022-06-3074HCT594D

      Quality, reliability & chemical content

      Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRIFRMTBF (hour)MSLMSL leadfree
      74HC594D74HC594D,11874HC594Dweek 30, 200439.31.37.69E811
      74HC594DB
      NRND
      74HC594DB,11874HC594DBweek 13, 200511
      74HC594DB
      NRND
      74HC594DB,11274HC594DBweek 13, 200511
      74HC594PW74HC594PWJ74HC594PW39.31.37.69E811
      74HCT594D74HCT594D,11874HCT594Dweek 6, 200439.31.37.69E811
      74HCT594DB
      NRND
      74HCT594DB,11874HCT594DBAlways Pb-free11
      74HCT594DB
      NRND
      74HCT594DB,11274HCT594DBAlways Pb-free11
      74HCT594PW74HCT594PWJ74HCT594PW11

      The variants in the table below are discontinued. See the table Discontinuation information for more information.

      Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRIFRMTBF (hour)MSLMSL leadfree
      74HC594D74HC594D,11274HC594Dweek 30, 200439.31.37.69E811
      74HCT594D74HCT594D,11274HCT594Dweek 6, 200439.31.37.69E811
      Quality and reliability disclaimer

      Documentation (13)

      File nameTitleTypeDate
      74HC_HCT5948-bit shift register with output registerData sheet2021-10-22
      AN11044Pin FMEA 74HC/74HCT familyApplication note2019-01-09
      hc59474HC594 IBIS modelIBIS model2021-02-02
      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
      SOT109-1plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.75 mm bodyPackage information2021-01-06
      WAVE_BG-BD-1Wave soldering profileWave soldering2021-09-08
      SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08
      SOT403-1plastic, thin shrink small outline package; 16 leads; 5 mm x 4.4 mm x 1.1 mm bodyPackage information2020-04-21
      SSOP-TSSOP-VSO-REFLOWFootprint for reflow solderingReflow soldering2009-10-08
      SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08
      SOT338-1plastic, shrink small outline package; 16 leads; 0.65 mm pitch; 6.2 mm x 5.3 mm x 2 mm bodyPackage information2020-04-21

      Support

      If you are in need of design/technical support, let us know and fill in the answer form, we'll get back to you shortly.

      Models

      File nameTitleTypeDate
      hc59474HC594 IBIS modelIBIS model2021-02-02

      Sample

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