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SN74HC191N - Texas Instruments

Description: 4 BIT Synchronous Up/Down Binary Counters

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SN74HC191N - Texas Instruments PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - N (R-PDIP-T16)
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SN74HC191N - Texas Instruments  - 3D model - Dual-In-Line Packages - N (R-PDIP-T16)
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SN74HC191N Details

  • Manufacturer Part Number:

    SN74HC191N

  • Brand Name:

    Texas Instruments

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    DIP

  • Pin Count:

    16

  • Country Of Origin:

    Malaysia, Mexico

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Additional Feature:

    RCO OUTPUT

  • Count Direction:

    BIDIRECTIONAL

  • Family:

    HC/UH

  • JESD-30 Code:

    R-PDIP-T16

  • JESD-609 Code:

    e4

  • Length:

    19.305 mm

  • Load Capacitance (CL):

    50 pF

  • Load/Preset Input:

    YES

  • Logic IC Type:

    BINARY COUNTER

  • Max Frequency@Nom-Sup:

    17000000 Hz

  • Max I(ol):

    0.0052 A

  • Mode of Operation:

    SYNCHRONOUS

  • Number of Bits:

    4

  • Number of Functions:

    1

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    DIP

  • Package Equivalence Code:

    DIP16,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Packing Method:

    TUBE

  • Power Supply Current-Max (ICC):

    0.08 mA

  • Prop. Delay@Nom-Sup:

    41 ns

  • Propagation Delay (tpd):

    240 ns

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    5.08 mm

  • Supply Voltage-Max (Vsup):

    6 V

  • Supply Voltage-Min (Vsup):

    2 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    NO

  • Technology:

    CMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Nickel/Palladium/Gold (Ni/Pd/Au)

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

  • Trigger Type:

    POSITIVE EDGE

  • Width:

    7.62 mm

  • fmax-Min:

    19 MHz

SN74HC191N Frequently Asked Questions (FAQs)

  • The SN74HC191N can handle clock frequencies up to 30 MHz.
  • To ensure proper reset, the reset input (R) should be held low for at least 10 ns, and then released to allow the counter to start counting.
  • The SN74HC191N is a 4-bit synchronous up/down counter, which means it can store a maximum count value of 15 (1111 in binary).
  • Yes, the SN74HC191N can be used as a divide-by-n counter by connecting the Q0 output to the clock input and using the preset inputs to set the divide ratio.
  • To cascade multiple SN74HC191N counters, connect the carry-out (CO) output of one counter to the clock input of the next counter, and connect the preset inputs of each counter to the desired preset value.

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About Texas Instruments

Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.

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For a full list of alternate parts for SN74HC191N, check out Findchips.com