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SN74LS161AN - Texas Instruments

Description: Synchronous 4-Bit Binary Counters

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SN74LS161AN - Texas Instruments PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - SN74LS161AN
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SN74LS161AN Details

  • Manufacturer Part Number:

    SN74LS161AN

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • 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:

    TCO OUTPUT

  • Count Direction:

    UP

  • Family:

    LS

  • JESD-30 Code:

    R-PDIP-T16

  • JESD-609 Code:

    e4

  • Length:

    19.305 mm

  • Load Capacitance (CL):

    15 pF

  • Load/Preset Input:

    YES

  • Logic IC Type:

    BINARY COUNTER

  • Max Frequency@Nom-Sup:

    25000000 Hz

  • Max I(ol):

    0.008 A

  • Mode of Operation:

    SYNCHRONOUS

  • Number of Bits:

    4

  • Number of Functions:

    1

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    70 °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):

    32 mA

  • Prop. Delay@Nom-Sup:

    35 ns

  • Propagation Delay (tpd):

    27 ns

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    5.08 mm

  • Supply Voltage-Max (Vsup):

    5.25 V

  • Supply Voltage-Min (Vsup):

    4.75 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    NO

  • Technology:

    TTL

  • Temperature Grade:

    COMMERCIAL

  • 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:

    25 MHz

SN74LS161AN Frequently Asked Questions (FAQs)

  • The maximum clock frequency of the SN74LS161AN is 25 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 maximum count value of the SN74LS161AN is 65,535 (FFFFh).
  • Yes, the SN74LS161AN can be used as a divide-by-n counter by connecting the Q4 output to the clock input and using the preset inputs to load the desired count value.
  • To cascade multiple SN74LS161AN counters, connect the Q4 output of the first counter to the clock input of the second counter, and so on.

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SN74LS161AN Overview

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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 SN74LS161AN, check out Findchips.com