ON Semiconductor
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LC75821EHS-E

LC75821EHS-E

Product Overview

Category

LC75821EHS-E belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in electronic devices for controlling and driving liquid crystal displays (LCDs).

Characteristics

  • Package: The LC75821EHS-E comes in a compact surface mount package.
  • Essence: It is designed to provide efficient control and drive capabilities for LCD panels.
  • Packaging/Quantity: The IC is typically packaged in reels or tubes, with varying quantities depending on the supplier.

Specifications

The LC75821EHS-E has the following specifications:

  • Supply Voltage: 2.7V to 5.5V
  • Operating Temperature Range: -40°C to +85°C
  • Maximum Output Current: 60mA
  • Number of Segments: 80
  • Number of Common Outputs: 16
  • Display Data RAM: 80 x 4 bits
  • Built-in Oscillator Frequency: 262kHz

Detailed Pin Configuration

The LC75821EHS-E has a total of 64 pins. Here is a detailed pin configuration:

  1. VDD
  2. VSS
  3. OSC
  4. M
  5. N
  6. O
  7. P
  8. Q
  9. R
  10. S
  11. T
  12. U
  13. V
  14. W
  15. X
  16. Y
  17. Z
  18. AA
  19. AB
  20. AC
  21. AD
  22. AE
  23. AF
  24. AG
  25. AH
  26. AI
  27. AJ
  28. AK
  29. AL
  30. AM
  31. AN
  32. AO
  33. AP
  34. AQ
  35. AR
  36. AS
  37. AT
  38. AU
  39. AV
  40. AW
  41. AX
  42. AY
  43. AZ
  44. BA
  45. BB
  46. BC
  47. BD
  48. BE
  49. BF
  50. BG
  51. BH
  52. BI
  53. BJ
  54. BK
  55. BL
  56. BM
  57. BN
  58. BO
  59. BP
  60. BQ
  61. BR
  62. BS
  63. BT
  64. BU

Functional Features

The LC75821EHS-E offers the following functional features:

  • Segment and common output drivers for LCD panels
  • Built-in oscillator for generating display timing signals
  • Serial data input for easy control interface
  • Display data RAM for storing segment data
  • High output current capability for driving large LCDs
  • Low power consumption in standby mode

Advantages and Disadvantages

Advantages: - Efficient control and drive capabilities for LCD panels - Compact package size - Wide operating voltage range - High output current capability

Disadvantages: - Limited number of segments and common outputs - Requires an external oscillator for proper operation

Working Principles

The LC75821EHS-E works by receiving serial data input, which is then stored in its display data RAM. The built-in oscillator generates timing signals to control the segment and common output drivers, which in turn drive the LCD panel. The IC's high output current capability ensures proper display illumination.

Detailed Application Field Plans

The LC75821EHS-E is commonly used in various electronic devices that require LCD control and drive capabilities. Some specific application fields include:

  1. Automotive dashboards and instrument clusters
  2. Consumer electronics such as calculators and digital watches
  3. Industrial equipment displays
  4. Medical devices with LCD screens
  5. Home appliances with LCD interfaces

Detailed and Complete Alternative Models

  1. LC75822EHS-E: Similar to LC75821EHS-E, but with additional features for larger LCD panels.
  2. LC75823EHS-E: Higher output current capability compared to LC75821EHS-E, suitable for driving high-resolution LCDs.
  3. LC75824EHS-E: Enhanced control interface options and increased number of segments for more complex displays.

These alternative models offer similar functionality to the LC75821EHS-E, but with specific enhancements or variations to meet different application requirements.

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기술 솔루션에 LC75821EHS-E 적용과 관련된 10가지 일반적인 질문과 답변을 나열하세요.

Sure! Here are 10 common questions and answers related to the application of LC75821EHS-E in technical solutions:

  1. Question: What is LC75821EHS-E?
    Answer: LC75821EHS-E is a specific integrated circuit (IC) designed for use in technical solutions, particularly in display applications.

  2. Question: What are the main features of LC75821EHS-E?
    Answer: LC75821EHS-E features include a built-in display RAM, a key scan circuit, a PWM circuit, and a voltage regulator, making it suitable for various display applications.

  3. Question: What types of displays can LC75821EHS-E be used with?
    Answer: LC75821EHS-E can be used with a wide range of displays, including dot matrix displays, segment displays, and alphanumeric displays.

  4. Question: How does LC75821EHS-E handle key scanning?
    Answer: LC75821EHS-E has a built-in key scan circuit that allows for easy integration of keypad functionality into your technical solution.

  5. Question: Can LC75821EHS-E control multiple displays simultaneously?
    Answer: Yes, LC75821EHS-E supports multiplexing, allowing it to control multiple displays at the same time.

  6. Question: Is LC75821EHS-E compatible with microcontrollers?
    Answer: Yes, LC75821EHS-E can be easily interfaced with microcontrollers through its serial interface, making it convenient for integration into larger systems.

  7. Question: What is the maximum display size supported by LC75821EHS-E?
    Answer: LC75821EHS-E can support displays with up to 80 segments and 16 commons, providing flexibility for various display sizes.

  8. Question: Does LC75821EHS-E have built-in brightness control?
    Answer: Yes, LC75821EHS-E includes a PWM circuit that allows for easy brightness control of the connected display.

  9. Question: Can LC75821EHS-E operate on low voltage power supplies?
    Answer: Yes, LC75821EHS-E has a built-in voltage regulator that enables operation on low voltage power supplies, making it suitable for portable devices.

  10. Question: Are there any application examples for LC75821EHS-E?
    Answer: Yes, LC75821EHS-E can be used in various applications such as automotive dashboards, home appliances, industrial equipment, and consumer electronics.

Please note that these answers are general and may vary depending on the specific requirements and implementation of your technical solution.