8-bit serial-in/parallel-out shift register

The 74LV164 is a low-voltage, Si-gate CMOS device and is pin and function compatible with the 74HC164 and 74HCT164.

The 74LV164 is an 8-bit edge-triggered shift register with serial data entry and an output from each of the eight stages. Data is entered serially through one of two inputs (DSA or DSB) and either input can be used as an active HIGH enable for data entry through the other input. Both inputs must be connected together or an unused input must be tied HIGH.

Data shifts one place to the right on each LOW-to-HIGH transition of the clock input (CP) and enters into Q0, which is the logical AND-function of the two data inputs (DSA and DSB) that existed one set-up time prior to the rising clock edge.

A LOW on the master reset input (MR) overrides all other inputs and clears the register asynchronously, forcing all outputs LOW.


  • Wide operating voltage: 1.0 V to 5.5 V
  • Optimized for low-voltage applications: 1.0 V to 3.6 V
  • Accepts TTL input levels between VCC = 2.7 V and VCC = 3.6 V
  • Typical VOLP (output ground bounce): < 0.8 V at VCC = 3.3 V and Tamb = 25 °C
  • Typical VOHV (output VOH undershoot): > 2 V at VCC = 3.3 V and Tamb = 25 °C
  • Gated serial data inputs
  • Asynchronous master reset
  • ESD protection:
    • HBM JESD22-A114F exceeds 2000 V
    • MM JESD22-A115-A exceeds 200 V
  • Specified from -40 °C to +80 °C and from -40 °C to +125 °C


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
74LV164BQProduction1.0 - 5.5TTL± 1212788low-40~125929.158DHVQFN14
74LV164DProduction1.0 - 5.5TTL± 1212788low-40~125907.947SO14
Not for design in1.0 - 5.5TTL+/- 1212788low-40~12515640.0SSOP14
74LV164PWProduction1.0 - 5.5TTL± 1212788low-40~1251283.653.1TSSOP14


Type numberPackageOutline versionReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
SOT762-1Reel 7" Q1/T1ActiveLV16474LV164BQ,115
( 9352 786 54115 )
Reel 13" Q1/T1Active74LV164D74LV164D,118
( 9350 674 50118 )
Bulk PackActive74LV164D74LV164D,112
( 9350 674 50112 )

Reel 13" Q1/T1ActiveLV16474LV164DB,118
( 9351 701 90118 )
Bulk PackActiveLV16474LV164DB,112
( 9351 701 90112 )
Reel 13" Q1/T1ActiveLV16474LV164PW,118
( 9351 752 40118 )
Bulk PackActiveLV16474LV164PW,112
( 9351 752 40112 )

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRIFRMTBF (hour)MSLMSL leadfree
74LV164BQ74LV164BQ,11574LV164BQAlways Pb-free144.910.239.78E711
74LV164D74LV164D,11874LV164Dweek 5, 2004144.910.239.78E711
74LV164D74LV164D,11274LV164Dweek 5, 2004144.910.239.78E711
74LV164DB,11874LV164DBweek 12, 200511
74LV164DB,11274LV164DBweek 12, 200511
74LV164PW74LV164PW,11874LV164PWweek 17, 2005144.910.239.78E711
74LV164PW74LV164PW,11274LV164PWweek 17, 2005144.910.239.78E711
Quality and reliability disclaimer

Documentation (20)

File nameTitleTypeDate
74LV1648-bit serial-in/parallel-out shift registerData sheet2017-03-30
74lv16474LV164 IBIS modelIBIS model2017-10-21
Nexperia_Selection_guide_2020Nexperia Selection Guide 2020Selection guide2020-01-31
SOT337-1_118Standard product orientation 12NC ending 118Packing2013-04-04
SOT337-1plastic, shrink small outline package; 14 leads; 0.65 mm pitch; 6.2 mm x 5.3 mm x 2 mm bodyOutline drawing2018-10-18
SSOP-TSSOP-VSO-REFLOWFootprint for reflow solderingReflow soldering2009-10-08
SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08
SOT762-1_471DHVQFN14; Reel sulfur barrier pack, SMD, 7" Q1/T1 standard product orientation Orderable part number ending ,471 or Z Ordering code (12NC) ending 471Packing2016-01-21
SOT762-1plastic, leadless dual in-line compatible thermal enhanced very thin quad flat package; 14 terminals; 0.5 mm pitch; 3 mm x 2.5 mm x 1 mm bodyOutline drawing2018-11-14
SOT762-1_115DHVQFN14; Reel pack for SMD, 7"; Q1/T1 product orientationPacking2020-02-13
SOT402-1_623TSSOP14; Reel pack; SMD, 13"; Q1 Standard product orientation; Orderable part number ending, 623 or XP; Ordering code (12NC) ending 623Packing2013-05-15
SOT402-1_653TSSOP14; Reel pack; SMD, 13"; Q1 Standard product orientation; Orderable part number ending, 653 or HL; Ordering code (12NC) ending 653Packing2013-05-15
SOT402-1plastic, thin shrink small outline package; 14 leads; 0.65 mm pitch; 5 mm x 4.4 mm x 1.1 mm bodyOutline drawing2018-10-18
SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08
SOT402-1_118TSSOP14; Reel pack for SMD, 13"; Q1/T1 product orientationPacking2019-11-29
SOT108-1_431SO14; Reel sulfur barrier pack, SMD, 13" Q1/T1 standard product orientation Orderable part number ending ,431 or Z Ordering code (12NC) ending 431Packing2016-11-24
SOT108-1plastic, small outline package; 14 leads; 1.27 mm pitch; 8.65 mm x 3.9 mm x 1.75 mm bodyOutline drawing2018-10-18
SO-SOJ-REFLOWFootprint for reflow solderingReflow soldering2009-10-08
SO-SOJ-WAVEFootprint for wave solderingWave soldering2009-10-08
SOT108-1_118SO14; Reel pack for SMD, 13"; Q1/T1 product orientationPacking2020-02-14


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.


File nameTitleTypeDate
74lv16474LV164 IBIS modelIBIS model2017-10-21

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