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MM74C48N
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MM74C48N

Product Overview

  • Category: Integrated Circuit
  • Use: BCD-to-7 Segment Decoder/Driver
  • Characteristics: High-speed, low-power consumption
  • Package: 16-pin DIP (Dual Inline Package)
  • Essence: Converts binary-coded decimal (BCD) input into the corresponding 7-segment display output
  • Packaging/Quantity: Typically available in tubes or trays containing multiple units

Specifications

  • Supply Voltage: 4.75V to 5.25V
  • Operating Temperature: -55°C to 125°C
  • Output Current: 20mA
  • Propagation Delay: 30ns
  • Power Consumption: 33mW

Detailed Pin Configuration

  1. A-Ground
  2. B-BCD Input A
  3. C-BCD Input B
  4. D-BCD Input C
  5. E-BCD Input D
  6. F-Blanking Input
  7. G-Lamp Test Input
  8. H-BCD Input LT
  9. I-BCD Input LE
  10. J-BCD Input LF
  11. K-BCD Input LG
  12. L-BCD Input LH
  13. M-BCD Input LI
  14. N-BCD Input LJ
  15. O-BCD Input LK
  16. VCC-Supply Voltage

Functional Features

  • Converts BCD input into 7-segment display output
  • Blanking input for controlling display
  • Lamp test input for testing the display
  • Low power consumption
  • High-speed operation

Advantages and Disadvantages

Advantages

  • High-speed operation
  • Low power consumption
  • Versatile BCD-to-7 segment decoding capabilities

Disadvantages

  • Limited to BCD input
  • Requires additional components for driving displays

Working Principles

The MM74C48N is designed to take BCD input and convert it into signals suitable for driving a 7-segment display. It uses internal logic to decode the BCD input and activate the appropriate segments of the display to represent the input value.

Detailed Application Field Plans

The MM74C48N is commonly used in electronic devices that require numerical displays, such as digital clocks, calculators, and instrumentation panels. Its ability to efficiently drive 7-segment displays makes it an essential component in various consumer and industrial electronics applications.

Detailed and Complete Alternative Models

  • CD4511: BCD-to-7 Segment Latch/Decoder/Driver
  • SN74LS47: BCD-to-7 Segment Decoder/Driver
  • 74HC4511: CMOS BCD-to-7 Segment Latch/Decoder/Driver

In conclusion, the MM74C48N is a versatile integrated circuit that efficiently converts BCD input into signals suitable for driving 7-segment displays. Its high-speed operation, low power consumption, and wide range of applications make it a popular choice for electronic design engineers.

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10个与MM74C48N在技术解决方案中的应用相关的常见问题及解答

  1. What is MM74C48N?

    • MM74C48N is a BCD-to-7 segment latch/decoder/driver IC, commonly used to convert binary-coded decimal (BCD) input into a 7-segment display output.

  2. What is the pin configuration of MM74C48N?

    • The pin configuration of MM74C48N includes BCD inputs (A, B, C, D), lamp test input (LT), ripple blanking input (RB), and 7-segment outputs (a, b, c, d, e, f, g).

  3. How does MM74C48N work?

    • MM74C48N takes BCD input from A, B, C, and D pins and converts it into corresponding 7-segment display output. It also provides features like lamp test and ripple blanking for display control.

  4. What are the typical applications of MM74C48N?

    • MM74C48N is commonly used in digital clocks, electronic meters, industrial control panels, and other devices requiring BCD-to-7 segment display conversion.

  5. What is the maximum voltage rating for MM74C48N?

    • The maximum voltage rating for MM74C48N is typically around 7V to 15V, depending on the specific variant and manufacturer.

  6. How can MM74C48N be interfaced with a microcontroller?

    • MM74C48N can be interfaced with a microcontroller by connecting the BCD inputs to the microcontroller's output pins and using the microcontroller to control the LT and RB inputs.

  7. What are the key features of MM74C48N?

    • Key features of MM74C48N include low power consumption, direct drive of common-cathode LED displays, and built-in lamp test and ripple blanking functions.

  8. Can MM74C48N drive multiple 7-segment displays?

    • Yes, MM74C48N can drive multiple 7-segment displays by multiplexing the outputs and controlling the LT and RB inputs accordingly.

  9. What are the limitations of MM74C48N?

    • Some limitations of MM74C48N include the need for external current-limiting resistors for the LED segments and the requirement for proper interfacing with the BCD input source.

  10. Where can I find the datasheet for MM74C48N?

    • The datasheet for MM74C48N can be found on the websites of semiconductor manufacturers or distributors, such as Texas Instruments, ON Semiconductor, or STMicroelectronics.