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CD74HC4511PWT
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CD74HC4511PWT

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: BCD to 7-segment latch/decoder/driver
  • Characteristics: High-speed CMOS logic, low power consumption
  • Package: TSSOP-16
  • Essence: Converts binary-coded decimal (BCD) input into a 7-segment display output
  • Packaging/Quantity: Tape and reel, 2500 pieces per reel

Specifications

  • Supply Voltage: 2V to 6V
  • Input Voltage: 0V to VCC
  • Output Voltage: 0V to VCC
  • Operating Temperature: -40°C to +85°C
  • Propagation Delay Time: 25 ns (typical)
  • Output Current: ±5.2 mA

Pin Configuration

The CD74HC4511PWT has a total of 16 pins arranged as follows:

┌───┬───┐ 1 │ │ 16 │ VCC 2 │ │ 15 │ A 3 │ │ 14 │ F 4 │ │ 13 │ GND 5 │ │ 12 │ B 6 │ │ 11 │ C 7 │ │ 10 │ D 8 │ │ 9 │ E └───┴───┘

Functional Features

  • Converts BCD input to 7-segment display output
  • Latches the input data for stable output
  • Drives common-cathode or common-anode displays
  • Supports active-high or active-low outputs
  • Provides blanking input for display control

Advantages

  • High-speed operation allows for real-time display updates
  • Low power consumption makes it suitable for battery-powered devices
  • Compact TSSOP-16 package saves board space
  • Versatile input and output configurations provide flexibility in design

Disadvantages

  • Limited to BCD input, not suitable for other numeric systems
  • Requires additional components for driving multiplexed displays
  • May require external resistors for current limiting

Working Principles

The CD74HC4511PWT is a BCD to 7-segment latch/decoder/driver IC. It takes a 4-bit binary-coded decimal (BCD) input and converts it into the corresponding 7-segment display output. The input data is latched internally, ensuring stable output even when the input changes.

The IC can drive common-cathode or common-anode displays, depending on the configuration. It supports both active-high and active-low outputs, allowing compatibility with various display types. Additionally, a blanking input is provided for display control.

Detailed Application Field Plans

The CD74HC4511PWT is commonly used in applications that require numerical display output based on BCD input. Some of the potential application fields include:

  1. Digital clocks and timers
  2. Counters and frequency meters
  3. Industrial control panels
  4. Measurement instruments
  5. Scoreboards and score displays
  6. Consumer electronics, such as calculators and digital watches

Alternative Models

  • CD4511BE: DIP-16 package, through-hole mounting
  • SN74LS47N: DIP-16 package, low-power Schottky TTL logic
  • HEF4511BP: DIP-16 package, high-speed CMOS logic

These alternative models offer similar functionality to the CD74HC4511PWT and can be used as replacements in compatible designs.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de CD74HC4511PWT en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of CD74HC4511PWT:

1. What is CD74HC4511PWT? - CD74HC4511PWT is a BCD-to-7-segment latch/decoder/driver IC, commonly used for driving 7-segment displays in digital circuits.

2. How does CD74HC4511PWT work? - It takes a 4-bit binary input (BCD) and converts it into the corresponding 7-segment display output. The output pins of the IC can directly drive a 7-segment display.

3. What is the maximum voltage rating for CD74HC4511PWT? - The maximum voltage rating for CD74HC4511PWT is typically 6V.

4. Can CD74HC4511PWT drive multiple 7-segment displays? - Yes, CD74HC4511PWT can drive multiple 7-segment displays by connecting the outputs of multiple ICs together.

5. How many 7-segment displays can CD74HC4511PWT drive simultaneously? - CD74HC4511PWT can drive up to 8 individual 7-segment displays simultaneously.

6. Does CD74HC4511PWT have built-in current limiting resistors for the 7-segment display? - No, CD74HC4511PWT does not have built-in current limiting resistors. External resistors are required to limit the current through the 7-segment display.

7. What is the maximum frequency at which CD74HC4511PWT can operate? - CD74HC4511PWT can typically operate at frequencies up to 25 MHz.

8. Can CD74HC4511PWT be used with common cathode 7-segment displays? - No, CD74HC4511PWT is designed to work with common anode 7-segment displays. For common cathode displays, an additional inverter circuit is required.

9. Can CD74HC4511PWT be cascaded with other ICs for larger BCD inputs? - Yes, CD74HC4511PWT can be cascaded with other ICs to handle larger BCD inputs by connecting the carry output of one IC to the carry input of the next IC.

10. What are some typical applications of CD74HC4511PWT? - CD74HC4511PWT is commonly used in digital clocks, scoreboards, frequency counters, and any application that requires driving multiple 7-segment displays based on a binary input.

Please note that these answers are general and may vary depending on specific datasheet specifications and circuit design considerations.