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SN74161N - Texas Instruments

Description: IC, Logic, 7400, Counter, SN74161N

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SN74161N - Texas Instruments PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - 16 pdip n
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SN74161N - Texas Instruments  - 3D model - Dual-In-Line Packages - 16 pdip n
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SN74161N Details

  • Manufacturer Part Number:

    SN74161N

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    No

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    DIP

  • Package Description:

    PLASTIC, DIP-16

  • Pin Count:

    16

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Additional Feature:

    TCO OUTPUT

  • Count Direction:

    UP

  • Family:

    TTL/H/L

  • JESD-30 Code:

    R-PDIP-T16

  • 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):

    0.016 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

  • Peak Reflow Temperature (Cel):

    NOT SPECIFIED

  • Power Supply Current-Max (ICC):

    101 mA

  • Prop. Delay@Nom-Sup:

    29 ns

  • Propagation Delay (tpd):

    29 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 Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

  • Time@Peak Reflow Temperature-Max (s):

    NOT SPECIFIED

  • Trigger Type:

    POSITIVE EDGE

  • Width:

    7.62 mm

  • fmax-Min:

    25 MHz

SN74161N Frequently Asked Questions (FAQs)

  • The maximum clock frequency of the SN74161N is 25 MHz, but it can vary depending on the operating voltage and temperature. It's recommended to check the datasheet for specific frequency limits under different operating conditions.
  • To ensure proper reset, connect the CLR (clear) input to a pull-up resistor and a capacitor to ground. This will ensure that the counter is reset to zero during power-up. Additionally, make sure to meet the specified reset timing requirements.
  • The SN74161N can be used as both a binary counter and a decade counter. By connecting the Q4 output to the CI (clock inhibit) input, you can configure the counter to count in binary. Otherwise, it will count in decimal (0-9).
  • The SN74161N can sink or source up to 16 mA of current per output pin. However, it's recommended to limit the output current to 10 mA or less to ensure reliable operation and prevent overheating.
  • To cascade multiple SN74161N counters, connect the Q4 output of the first counter to the CI input of the second counter, and so on. Make sure to connect the clock inputs of all counters together and use a common reset signal.

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SN74161N 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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