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DM7446AN
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DM7446AN Encyclopedia Entry

Product Overview

Category

The DM7446AN belongs to the category of integrated circuits, specifically as a BCD-to-Seven-Segment Latch/Decoder/Driver.

Use

It is used for converting binary-coded decimal (BCD) input data into the 7-segment display format.

Characteristics

  • The DM7446AN features a latch to hold the last BCD input data and an NPN output sourcing drivers for common-cathode, 7-segment displays.
  • It operates with a wide range of supply voltages.
  • The device is designed to be directly interfaced with CMOS, NMOS, and TTL.

Package

The DM7446AN is available in a 16-pin dual in-line package (DIP).

Essence

The essence of the DM7446AN lies in its ability to simplify the process of driving 7-segment displays by providing a convenient interface for BCD input data.

Packaging/Quantity

The DM7446AN is typically packaged in tubes or trays and is available in various quantities depending on the supplier.

Specifications

  • Supply Voltage: 4.75V to 5.25V
  • Input Voltage: 0V to Vcc
  • Operating Temperature Range: -55°C to 125°C
  • Output Current: 40mA

Detailed Pin Configuration

  1. A
  2. B
  3. C
  4. D
  5. LT
  6. BI/RBO
  7. a
  8. f
  9. e
  10. d
  11. c
  12. b
  13. RBO
  14. GND
  15. Vcc
  16. LE

Functional Features

  • BCD-to-Seven-Segment Decoding
  • Latching of BCD Input Data
  • Direct Interface Compatibility

Advantages

  • Wide Operating Voltage Range
  • Compatibility with Various Logic Families
  • Simplifies Driving 7-Segment Displays

Disadvantages

  • Limited Output Current Capacity
  • Requires External Components for Full Functionality

Working Principles

The DM7446AN works by latching the BCD input data and then decoding it to drive the appropriate segments of a 7-segment display based on the input.

Detailed Application Field Plans

The DM7446AN is commonly used in digital panel meters, frequency counters, and other applications where BCD input needs to be displayed on 7-segment displays.

Detailed and Complete Alternative Models

  • SN7446N
  • MC7446P
  • CD7446E

In conclusion, the DM7446AN serves as a versatile and reliable solution for BCD-to-7-segment decoding, offering compatibility with various logic families and simplifying the process of driving 7-segment displays in a wide range of applications.

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Listen Sie 10 häufige Fragen und Antworten im Zusammenhang mit der Anwendung von DM7446AN in technischen Lösungen auf

Sure, here are 10 common questions and answers related to the application of DM7446AN:

  1. What is DM7446AN?

    • DM7446AN is a BCD-to-7-segment latch/decoder/driver IC used for converting binary-coded decimal (BCD) input into a 7-segment display output.

  2. What is the maximum input voltage for DM7446AN?

    • The maximum input voltage for DM7446AN is typically around 5V.

  3. How many BCD inputs does DM7446AN have?

    • DM7446AN has 4 BCD inputs, labeled A, B, C, and D.

  4. What is the output configuration of DM7446AN?

    • The outputs of DM7446AN are open-collector, allowing for easy interfacing with various display types.

  5. Can DM7446AN directly drive a common-cathode 7-segment display?

    • Yes, DM7446AN can directly drive a common-cathode 7-segment display.

  6. What is the maximum current sink capability of DM7446AN?

    • The maximum current sink capability of DM7446AN is typically around 40mA per segment.

  7. Can DM7446AN be cascaded to drive multiple 7-segment displays?

    • Yes, DM7446AN can be cascaded to drive multiple 7-segment displays in applications requiring more than one display.

  8. What is the power supply requirement for DM7446AN?

    • DM7446AN typically operates on a 5V power supply.

  9. Does DM7446AN have built-in latches?

    • Yes, DM7446AN has built-in latches that hold the BCD input data.

  10. Is DM7446AN suitable for low-power applications?

    • Yes, DM7446AN is suitable for low-power applications due to its low power consumption and open-collector outputs.

These questions and answers cover some common aspects of using DM7446AN in technical solutions. If you have any further questions, feel free to ask!