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SN74LS390DR

SN74LS390DR

Manufacturer No:

SN74LS390DR

Manufacturer:

Texas Instruments

Description:

IC DECADE COUNTR DL 4BIT 16SOIC

Datasheet:

Datasheet

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SN74LS390DR Specifications

  • Type
    Parameter
  • Supplier Device Package
    16-SOIC
  • Package / Case
    16-SOIC (0.154", 3.90mm Width)
  • Mounting Type
    Surface Mount
  • Operating Temperature
    0°C ~ 70°C
  • Voltage - Supply
    4.75 V ~ 5.25 V
  • Trigger Type
    Negative Edge
  • Count Rate
    35 MHz
  • Timing
    -
  • Reset
    Asynchronous
  • Number of Bits per Element
    4
  • Number of Elements
    2
  • Direction
    Up
  • Logic Type
    Counter, Decade
  • Packaging
    Tape & Reel (TR)
  • Product Status
    Obsolete
  • Series
    74LS
The SN74LS390DR is a dual 4-bit decade counter/divider integrated circuit chip. It has multiple advantages and can be used in various application scenarios, including:1. Counter and Divider Functions: The SN74LS390DR can be used as a counter, allowing it to count up or down. It can also function as a divider, dividing the input frequency by a specified factor. This makes it useful in applications where counting or division is required, such as frequency counters, timers, and digital clocks.2. High-Speed Operation: The SN74LS390DR offers high-speed operation, making it suitable for applications that require quick and accurate counting or division. Its maximum clock frequency is 42 MHz, allowing it to handle fast input signals effectively.3. Dual Channels: The chip features two separate 4-bit decade counters/dividers in one package. This dual-channel design provides flexibility, allowing the chip to perform independent counting or division operations on two different signals simultaneously.4. Cascading Capability: The SN74LS390DR is designed to be easily cascaded with additional chips to expand the counting or division capacity. By cascading multiple chips together, larger counters or dividers can be implemented. This feature is valuable in applications where higher counting range or division ratios are required.5. Wide Operating Voltage Range: The chip operates within a wide voltage range of 4.75V to 5.25V, suitable for most digital systems and circuits.Application scenarios where the SN74LS390DR can be used include:1. Industrial Control Systems: It can be employed in digital control systems, like process control or automation, where counting or timing operations are necessary.2. Communication Systems: The chip can be used in frequency synthesizers, frequency dividers, or clock generators in communication systems, providing accurate timing and frequency control.3. Test and Measurement Instruments: It can be utilized in frequency counters, timers, and other measurement devices to accurately count or divide input signals.4. Digital Clocks: The SN74LS390DR can be used in digital clocks to keep track of and display time, providing a stable and accurate timekeeping capability.5. Programmable Logic Controllers (PLCs): In PLCs, the chip can be used for various control and counting purposes, allowing users to implement complex timing or counting operations.Overall, the SN74LS390DR offers versatile counting and division functionalities with high-speed operation, making it suitable for a wide range of applications that require accurate timing, counting, or frequency division.
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