Texas Instruments
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CD74HC4511MT
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CD74HC4511MT

Product Overview

Category

CD74HC4511MT belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in digital electronics for BCD-to-7-segment latch/decoder/drivers.

Characteristics

  • High-speed operation
  • Wide supply voltage range
  • Low power consumption
  • TTL compatibility
  • Directly drives common-cathode LED displays
  • Output capability: source/sink 25 mA

Package

CD74HC4511MT is available in a small outline package (SOP) with 16 pins.

Essence

The essence of CD74HC4511MT lies in its ability to convert binary-coded decimal (BCD) input into a 7-segment display output.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

  • Supply Voltage Range: 2V to 6V
  • Input Voltage Range: 0V to VCC
  • Operating Temperature Range: -40°C to +85°C
  • Maximum Propagation Delay: 60 ns
  • Maximum Quiescent Current: 4 µA

Detailed Pin Configuration

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

Functional Features

  • BCD input decoding
  • Latch and display enable inputs
  • Seven segment outputs for driving LED displays
  • Ripple-blanking input/output for multiplexing applications

Advantages and Disadvantages

Advantages

  • High-speed operation allows for efficient data processing
  • Wide supply voltage range enables compatibility with various systems
  • Low power consumption reduces energy usage
  • TTL compatibility ensures easy integration with existing circuits
  • Directly drives common-cathode LED displays, simplifying the design

Disadvantages

  • Limited to BCD input decoding and 7-segment display output
  • Not suitable for applications requiring complex digital logic operations

Working Principles

CD74HC4511MT works by taking a BCD input and converting it into a corresponding 7-segment display output. The inputs A, B, C, and D represent the BCD code, while the outputs a-g correspond to the segments of the 7-segment display. The latch enable (LE) input is used to store the BCD input, and the display enable (LT) input controls the output display. By providing the appropriate BCD input, the desired number or character can be displayed on the 7-segment LED display.

Detailed Application Field Plans

CD74HC4511MT finds applications in various fields, including: 1. Digital clocks 2. Counters 3. Scoreboards 4. Industrial control panels 5. Electronic voting machines

Detailed and Complete Alternative Models

Some alternative models that serve similar functions to CD74HC4511MT are: 1. CD4511BCN 2. SN74LS47N 3. HEF4511BP 4. MC14511BCL

These alternatives offer similar BCD-to-7-segment decoding capabilities and can be used as substitutes depending on specific requirements.

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Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af CD74HC4511MT i tekniske løsninger

Sure! Here are 10 common questions and answers related to the application of CD74HC4511MT in technical solutions:

Q1: What is CD74HC4511MT? A1: CD74HC4511MT is a BCD-to-7-segment latch/decoder/driver IC. It converts binary-coded decimal (BCD) input into a 7-segment display output.

Q2: What is the maximum supply voltage for CD74HC4511MT? A2: The maximum supply voltage for CD74HC4511MT is 6V.

Q3: How many inputs does CD74HC4511MT have? A3: CD74HC4511MT has four BCD inputs (A, B, C, D) and an active-low latch enable input (LE).

Q4: What is the purpose of the latch enable input (LE)? A4: The latch enable input (LE) allows the user to latch the BCD inputs and hold the current state until a new input is provided.

Q5: How many 7-segment outputs does CD74HC4511MT have? A5: CD74HC4511MT has seven 7-segment outputs (a, b, c, d, e, f, g) that can drive a common-cathode 7-segment display.

Q6: Can CD74HC4511MT directly drive a 7-segment display? A6: No, CD74HC4511MT requires external current-limiting resistors to drive a 7-segment display.

Q7: What is the maximum sink/source current for each segment output? A7: The maximum sink/source current for each segment output is typically 25mA.

Q8: How do I connect CD74HC4511MT to a microcontroller? A8: Connect the BCD inputs (A, B, C, D) to the microcontroller's output pins and connect the latch enable input (LE) to a digital output pin.

Q9: Can CD74HC4511MT be used for multiplexing multiple 7-segment displays? A9: Yes, CD74HC4511MT can be used for multiplexing by connecting the common-cathode terminals of multiple 7-segment displays together.

Q10: Are there any precautions to consider when using CD74HC4511MT? A10: It is important to ensure that the supply voltage does not exceed the maximum rating, and to use current-limiting resistors when driving a 7-segment display. Additionally, proper decoupling capacitors should be used near the power supply pins.