NXP USA Inc.
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MC14489BDWE
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MC14489BDWE

Product Overview

Category

MC14489BDWE belongs to the category of integrated circuits (ICs).

Use

This product is commonly used for controlling and driving various types of displays, such as LED matrices and segment displays.

Characteristics

  • Integrated circuit
  • Display controller and driver
  • Suitable for LED matrices and segment displays

Package

MC14489BDWE is available in a small outline package (SOIC) with 16 pins.

Essence

The essence of MC14489BDWE lies in its ability to efficiently control and drive displays, providing a convenient solution for display applications.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

  • Supply voltage: 2.7V to 5.5V
  • Maximum output current: 25mA
  • Operating temperature range: -40°C to +85°C
  • Communication interface: Serial I/O

Detailed Pin Configuration

  1. VDD - Power supply voltage
  2. VSS - Ground
  3. DIN - Serial data input
  4. CLK - Clock input
  5. CS - Chip select input
  6. DOUT - Serial data output
  7. RST - Reset input
  8. INT - Interrupt output
  9. SEG0-SEG7 - Segment outputs
  10. SEG8-SEG15 - Segment outputs
  11. COM0-COM3 - Common outputs
  12. COM4-COM7 - Common outputs
  13. NC - No connection
  14. NC - No connection
  15. NC - No connection
  16. NC - No connection

Functional Features

  • Serial communication interface for easy integration
  • High output current capability for driving various displays
  • Flexible segment and common output configuration
  • Built-in interrupt functionality for efficient control

Advantages and Disadvantages

Advantages

  • Versatile display controller and driver
  • Wide operating voltage range
  • Compact package size for space-constrained applications
  • Efficient serial communication interface

Disadvantages

  • Limited maximum output current may not be suitable for high-power displays
  • Lack of built-in display memory requires external storage for complex display patterns

Working Principles

MC14489BDWE operates by receiving serial data input through the DIN pin, which is then processed and used to control the segment and common outputs. The clock input (CLK) synchronizes the data transfer, while the chip select input (CS) enables or disables the device. The output data can be read through the DOUT pin, and the interrupt output (INT) provides a signal when specific conditions are met.

Detailed Application Field Plans

MC14489BDWE finds application in various fields where display control and driving are required. Some potential application areas include:

  1. Consumer electronics: LCD displays, LED matrices in remote controls, digital watches, etc.
  2. Automotive: Dashboard displays, instrument clusters, infotainment systems, etc.
  3. Industrial equipment: Control panels, measurement devices, process monitors, etc.
  4. Medical devices: Patient monitors, diagnostic equipment, portable medical instruments, etc.

Detailed and Complete Alternative Models

  1. MAX7219 - Display driver IC with serial interface and integrated display memory.
  2. HT16K33 - LED matrix driver IC with I2C interface and integrated key scanning functionality.
  3. TLC5940 - LED driver IC with grayscale control and multiplexing capabilities.

These alternative models offer similar functionalities to MC14489BDWE and can be considered as alternatives based on specific requirements and design constraints.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de MC14489BDWE en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of MC14489BDWE in technical solutions:

  1. Q: What is MC14489BDWE? A: MC14489BDWE is a versatile LED driver IC (Integrated Circuit) that can be used to control multiple LEDs in various technical applications.

  2. Q: What is the maximum number of LEDs that MC14489BDWE can control? A: MC14489BDWE can control up to 128 LEDs, making it suitable for applications requiring a large number of LED outputs.

  3. Q: Can MC14489BDWE drive different types of LEDs? A: Yes, MC14489BDWE can drive both common anode and common cathode LEDs, providing flexibility in LED selection for your application.

  4. Q: How does MC14489BDWE communicate with a microcontroller or other control device? A: MC14489BDWE uses a simple serial interface (SPI) to communicate with the control device, allowing for easy integration into existing systems.

  5. Q: Is MC14489BDWE capable of dimming LEDs? A: Yes, MC14489BDWE supports LED dimming through pulse width modulation (PWM), enabling control over LED brightness levels.

  6. Q: Can MC14489BDWE handle high current LEDs? A: No, MC14489BDWE is designed to drive low to medium current LEDs. For high current LEDs, external drivers or amplifiers may be required.

  7. Q: Does MC14489BDWE have built-in protection features? A: Yes, MC14489BDWE includes built-in protection features such as thermal shutdown and overvoltage protection to ensure safe operation.

  8. Q: Can MC14489BDWE operate at different supply voltages? A: Yes, MC14489BDWE can operate at a wide range of supply voltages, typically between 2.7V and 5.5V, making it compatible with various systems.

  9. Q: Is MC14489BDWE suitable for automotive applications? A: Yes, MC14489BDWE is automotive-grade and meets the requirements for automotive applications, including temperature and reliability standards.

  10. Q: Are there any application examples where MC14489BDWE is commonly used? A: Yes, MC14489BDWE is commonly used in applications such as automotive instrument clusters, industrial control panels, gaming machines, and more.

Please note that these answers are general and may vary depending on specific implementation details and requirements.