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SN7490AN - Texas Instruments

Description: Counter ICs Asynchronous decade counters 14-PDIP 0 to 70

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SN7490AN - Texas Instruments PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - N (R-PDIP-T14)
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SN7490AN - Texas Instruments  - 3D model - Dual-In-Line Packages - N (R-PDIP-T14)
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SN7490AN Details

  • Manufacturer Part Number:

    SN7490AN

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    No

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    DIP

  • Package Description:

    PLASTIC, MS-001AA, DIP-14

  • Pin Count:

    14

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Additional Feature:

    ONE FUNCTION HAS 1 BIT

  • Count Direction:

    UP

  • Family:

    TTL/H/L

  • JESD-30 Code:

    R-PDIP-T14

  • Length:

    19.305 mm

  • Load Capacitance (CL):

    15 pF

  • Load/Preset Input:

    YES

  • Logic IC Type:

    DECADE COUNTER

  • Max Frequency@Nom-Sup:

    32000000 Hz

  • Max I(ol):

    0.016 A

  • Mode of Operation:

    ASYNCHRONOUS

  • Number of Bits:

    3

  • Number of Functions:

    2

  • Number of Terminals:

    14

  • Operating Temperature-Max:

    70 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    DIP

  • Package Equivalence Code:

    DIP14,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Peak Reflow Temperature (Cel):

    NOT SPECIFIED

  • Power Supply Current-Max (ICC):

    42 mA

  • Prop. Delay@Nom-Sup:

    50 ns

  • Propagation Delay (tpd):

    50 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:

    NEGATIVE EDGE

  • Width:

    7.62 mm

  • fmax-Min:

    32 MHz

SN7490AN Frequently Asked Questions (FAQs)

  • The SN7490AN can handle clock frequencies up to 25 MHz.
  • To ensure reliable operation in high-temperature environments, ensure that the device is operated within the recommended operating temperature range of 0°C to 70°C, and that the device is properly heat-sinked to prevent overheating.
  • The recommended power-on sequence for the SN7490AN is to apply power to the VCC pin first, followed by the clock signal, and then the input signals.
  • To troubleshoot issues with the SN7490AN, check the power supply voltage, clock signal, and input signals to ensure they are within the recommended operating ranges. Also, verify that the device is properly connected and that there are no short circuits or open circuits.
  • Yes, the SN7490AN can be used in a 3.3V system, but the input voltage levels must be adjusted accordingly to ensure proper operation.

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SN7490AN 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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Part Image 7490ADC Fairchild Semiconductor Corporation

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Part Image 7490ADC National Semiconductor Corporation

Decade Counter, TTL/H/L Series, Asynchronous, Negative Edge Triggered, 4-Bit, Up Direction, TTL, CDIP14

Part Image 7490ADC Texas Instruments

Decade Counter, TTL/H/L Series, Asynchronous, Negative Edge Triggered, 4-Bit, Up Direction, TTL, CDIP14

Part Image SN7490ANP3 Texas Instruments

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Part Image DM5490AJ/883 Texas Instruments

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For a full list of alternate parts for SN7490AN, check out Findchips.com