74HC163; 74HCT163

Presettable synchronous 4-bit binary counter; synchronous reset

The 74HC163; 74HCT163 is a synchronous presettable binary counter with an internal look-head carry. Synchronous operation is provided by having all flip-flops clocked simultaneously on the positive-going edge of the clock (CP). The outputs (Q0 to Q3) of the counters may be preset to a HIGH or LOW. A LOW at the parallel enable input (PE) disables the counting action. It causes the data at the data inputs (D0 to D3) to be loaded into the counter on the positive-going edge of the clock. Preset takes place regardless of the levels at count enable inputs (CEP and CET). A LOW at the master reset input (MR) sets Q0 to Q3 LOW after the next positive-going transition on the clock input (CP). This action occurs regardless of the levels at input pins PE, CET and CEP. This synchronous reset feature enables the designer to modify the maximum count with only one external NAND gate. The look-ahead carry simplifies serial cascading of the counters. Both CEP and CET must be HIGH to count. The CET input is fed forward to enable the terminal count output (TC). The TC output thus enabled will produce a HIGH output pulse of a duration approximately equal to a HIGH output of Q0. This pulse can be used to enable the next cascaded stage. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.

The CP to TC propagation delay and CEP to CP set-up time determine the maximum clock frequency for the cascaded counters according to the following formula:

fmax= (1) / (tP (max)(CP to TC) + tSU(CEP to CP) )

Features and benefits

  • Complies with JEDEC standard no. 7A
  • Input levels:
    • For 74HC163: CMOS level
    • For 74HCT163: TTL level
  • Synchronous counting and loading
  • 2 count enable inputs for n-bit cascading
  • Synchronous reset
  • Positive-edge triggered clock
  • ESD protection:
    • HBM JESD22-A114F exceeds 2000 V
    • MM JESD22-A115-A exceeds 200 V
  • Multiple package options
  • Specified from ‑40 °C to +85 °C and ‑40 °C to +125 °C

Applications

  • Television sets
  • Home-sound sets
  • Multimedia systems
  • All mains fed audio systems
  • Car audio (boosters)

Parametrics

Type numberProduct statusVCC (V)Output drive capability (mA)Logic switching levelstpd (ns)Power dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
74HC163DProduction2.0 - 6.0± 5.2CMOS17low-40~125835.241SO16
74HC163PWProduction2.0 - 6.0± 5.2CMOS17low-40~1251162.544.7TSSOP16
74HCT163DProduction4.5 - 5.5± 4TTL20low-40~125835.241SO16
74HCT163PWProduction4.5 - 5.5± 4TTL20low-40~1251162.544.7TSSOP16

Package

Type numberPackagePackage informationReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
74HC163D
SO16
(SOT109-1)
SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
Reel 13" Q1/T1 CECCActive74HC163D74HC163D,653
( 9337 145 40653 )
Bulk Pack, CECCActive74HC163D74HC163D,652
( 9337 145 40652 )
74HC163PW
TSSOP16
(SOT403-1)
SOT403-1SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1ActiveHC16374HC163PW,118
( 9351 873 50118 )
74HCT163D
SO16
(SOT109-1)
SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
Reel 13" Q1/T1 CECCActive74HCT163D74HCT163D,653
( 9337 150 20653 )
Bulk Pack, CECCActive74HCT163D74HCT163D,652
( 9337 150 20652 )
74HCT163PW
TSSOP16
(SOT403-1)
SOT403-1SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1ActiveHCT16374HCT163PW,118
( 9351 883 40118 )

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))
74HC163PW
TSSOP16
(SOT403-1)
SOT403-1SSOP-TSSOP-VSO-WAVE
Bulk PackDiscontinued / End-of-lifeHC16374HC163PW,112
( 9351 873 50112 )

Discontinuation information

Type numberOrderable part number, (Ordering code (12NC))Last time buy dateLast time delivery dateReplacement productStatusComments
74HC163PW9351873501122018-12-312019-06-3074HC163PW
    74HCT163PW9351883401122018-12-312019-06-3074HCT163PW

      Quality, reliability & chemical content

      Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRIFRMTBF (hour)MSLMSL leadfree
      74HC163D74HC163D,65374HC163Dweek 6, 200484.96.621.51E811
      74HC163D74HC163D,65274HC163Dweek 6, 200484.96.621.51E811
      74HC163PW74HC163PW,11874HC163PWweek 10, 200584.96.621.51E811
      74HCT163D74HCT163D,65374HCT163Dweek 6, 200484.96.621.51E811
      74HCT163D74HCT163D,65274HCT163Dweek 6, 200484.96.621.51E811
      74HCT163PW74HCT163PW,11874HCT163PWweek 10, 200584.96.621.51E811

      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
      74HC163PW74HC163PW,11274HC163PWweek 10, 200584.96.621.51E811
      Quality and reliability disclaimer

      Documentation (9)

      File nameTitleTypeDate
      74HC_HCT163Presettable synchronous 4-bit binary counter; synchronous resetData sheet2018-10-12
      AN11044Pin FMEA 74HC/74HCT familyApplication note2019-01-09
      hchc Spice modelSPICE model2013-05-06
      HCT_USER_GUIDEHC/T User GuideUser manual1997-10-31
      SO-SOJ-REFLOWFootprint for reflow solderingReflow soldering2009-10-08
      SO-SOJ-WAVEFootprint for wave solderingWave soldering2009-10-08
      SOT109-1plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.35 mm bodyPackage information2020-04-21
      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

      Support

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      Models

      File nameTitleTypeDate
      hchc Spice modelSPICE model2013-05-06

      Ordering, pricing & availability

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