Bipolar transistors

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ESD protection, TVS, filtering and signal conditioning

MOSFETs

SiC MOSFETs

GaN FETs

IGBTs

Analog & Logic ICs

Automotive qualified products (AEC-Q100/Q101)

74HC193; 74HCT193

Presettable synchronous 4-bit binary up/down counter

The 74HC193; 74HCT193 is a 4-bit synchronous binary up/down counter. Separate up/down clocks, CPU and CPD respectively, simplify operation. The outputs change state synchronously with the LOW-to-HIGH transition of either clock input. If the CPU clock is pulsed while CPD is held HIGH, the device will count up. If the CPD clock is pulsed while CPU is held HIGH, the device will count down. Only one clock input can be held HIGH at any time to guarantee predictable behavior. The device can be cleared at any time by the asynchronous master reset input (MR); it may also be loaded in parallel by activating the asynchronous parallel load input (PL). The terminal count up (TCU) and terminal count down (TCD) outputs are normally HIGH. When the circuit has reached the maximum count state of 15, the next HIGH-to-LOW transition of CPU will cause TCU to go LOW. TCU will stay LOW until CPU goes HIGH again, duplicating the count up clock. Likewise, the TCD output will go LOW when the circuit is in the zero state and the CPD goes LOW. The terminal count outputs can be used as the clock input signals to the next higher order circuit in a multistage counter, since they duplicate the clock waveforms. Multistage counters will not be fully synchronous, since there is a slight delay time difference added for each stage that is added. The counter may be preset by the asynchronous parallel load capability of the circuit. Information present on the parallel data inputs (D0 to D3) is loaded into the counter and appears on the outputs (Q0 to Q3) regardless of the conditions of the clock inputs when the parallel load (PL) input is LOW. A HIGH level on the master reset (MR) input will disable the parallel load gates, override both clock inputs and set all outputs (Q0 to Q3) LOW. If one of the clock inputs is LOW during and after a reset or load operation, the next LOW-to-HIGH transition of that clock will be interpreted as a legitimate signal and will be counted. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.

Features and benefits

  • Wide supply voltage range from 2.0 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 74HC193: CMOS level

    • For 74HCT193: TTL level

  • Synchronous reversible 4-bit binary counting

  • Asynchronous parallel load

  • Asynchronous reset

  • Expandable without external logic

  • Complies with JEDEC standards:

    • JESD8C (2.7 V to 3.6 V)

    • JESD7A (2.0 V to 6.0 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 -40 °C to +125 °C.

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
74HC193DProduction2.0 - 6.0± 5.2CMOS20low-40~125661.023SO16
74HC193PWProduction2.0 - 6.0± 5.2CMOS20low-40~1251011.027TSSOP16
74HCT193DProduction4.5 - 5.5± 4TTL20low-40~125661.023SO16
74HCT193PWProduction4.5 - 5.5± 4TTL20low-40~1251011.027TSSOP16

Package

Type numberPackagePackage informationReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
74HC193D
SO16
(SOT109-1)
SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
SOT109-1_653Active74HC193D74HC193D,653
( 9337 146 20653 )
74HC193PW
TSSOP16
(SOT403-1)
SOT403-1SSOP-TSSOP-VSO-WAVE
SOT403-1_118ActiveHC19374HC193PW,118
( 9351 889 80118 )
74HCT193D
SO16
(SOT109-1)
SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
SOT109-1_653Active74HCT193D74HCT193D,653
( 9337 151 00653 )
74HCT193PW
TSSOP16
(SOT403-1)
SOT403-1SSOP-TSSOP-VSO-WAVE
SOT403-1_118ActiveHCT19374HCT193PW,118
( 9352 830 88118 )

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))
74HC193D
SO16
(SOT109-1)
SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
SOT109-1_652Withdrawn / End-of-life74HC193D74HC193D,652
( 9337 146 20652 )

Discontinuation information

Type numberOrderable part number, (Ordering code (12NC))Last time buy dateLast time delivery dateReplacement productStatusComments
74HC193D9337146206522021-12-312022-06-3074HC193D
    74HC193PW9351889801122021-12-312022-06-3074HC193PW
      74HCT193D9337151006522021-12-312022-06-3074HCT193D
        74HCT193PW9352830881122018-12-312019-06-3074HCT193PW

          Environmental information

          Type numberOrderable part numberChemical contentRoHSRHF-indicatorLeadfree conversion date
          74HC193D74HC193D,65374HC193Dweek 30, 2004
          74HC193PW74HC193PW,11874HC193PWweek 10, 2005
          74HCT193D74HCT193D,65374HCT193Dweek 6, 2004
          74HCT193PW74HCT193PW,11874HCT193PWAlways Pb-free

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

          Type numberOrderable part numberChemical contentRoHSRHF-indicatorLeadfree conversion date
          74HC193D74HC193D,65274HC193Dweek 30, 2004
          Quality and reliability disclaimer

          Documentation (11)

          File nameTitleTypeDate
          74HC_HCT193Presettable synchronous 4-bit binary up/down counterData sheet2024-03-14
          AN11044Pin FMEA 74HC/74HCT familyApplication note2019-01-09
          hc19374HC193 IBIS modelIBIS model2019-01-31
          hct19374HCT193 IBIS modelIBIS model2022-10-11
          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

          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
          hc19374HC193 IBIS modelIBIS model2019-01-31
          hct19374HCT193 IBIS modelIBIS model2022-10-11

          Ordering, pricing & availability

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