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TC74HC161AP - Toshiba

Description: Synchronous Presettable 4-Bit Counter

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TC74HC161AP - Toshiba PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - DIP-16-P-300-2.54A*
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TC74HC161AP - Toshiba  - 3D model - Dual-In-Line Packages - DIP-16-P-300-2.54A*
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TC74HC161AP Details

  • Manufacturer Part Number:

    TC74HC161AP

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    DIP

  • Package Description:

    DIP-16

  • Pin Count:

    16

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Toshiba America Electronic Components

  • YTEOL:

    0

  • Count Direction:

    UP

  • Family:

    HC/UH

  • JESD-30 Code:

    R-PDIP-T16

  • Length:

    19.25 mm

  • Load Capacitance (CL):

    50 pF

  • Load/Preset Input:

    YES

  • Logic IC Type:

    BINARY COUNTER

  • Max Frequency@Nom-Sup:

    25000000 Hz

  • Max I(ol):

    0.004 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

  • Peak Reflow Temperature (Cel):

    NOT SPECIFIED

  • Power Supply Current-Max (ICC):

    50 mA

  • Prop. Delay@Nom-Sup:

    31 ns

  • Propagation Delay (tpd):

    155 ns

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    4.45 mm

  • Supply Voltage-Max (Vsup):

    6 V

  • Supply Voltage-Min (Vsup):

    2 V

  • Supply Voltage-Nom (Vsup):

    4.5 V

  • Surface Mount:

    NO

  • Technology:

    CMOS

  • Temperature Grade:

    INDUSTRIAL

  • 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:

    63 MHz

TC74HC161AP Frequently Asked Questions (FAQs)

  • The recommended operating voltage range for the TC74HC161AP is 2.0V to 5.5V.
  • The asynchronous clear (CLR) input should be tied to VCC through a pull-up resistor to prevent accidental clearing of the counter. A 1kΩ to 10kΩ resistor is recommended.
  • The maximum clock frequency for the TC74HC161AP is 30 MHz at VCC = 5V and 15 MHz at VCC = 3.3V.
  • To ensure proper synchronization of the clock signal, the clock signal should be synchronized with the system clock, and the clock signal should have a rise and fall time of less than 10 ns.
  • The carry-out (CO) output is used to cascade multiple counters together. When the counter overflows, the CO output goes high, indicating that the counter has overflowed.

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