ICM7218DIJI

Product Overview

Category

ICM7218DIJI belongs to the category of integrated circuits (ICs).

Use

This integrated circuit is commonly used in electronic devices for various applications, including digital panel meters, clocks, timers, and other similar devices.

Characteristics

• The ICM7218DIJI is a high-performance, 8-digit, multiplexed, LED display driver.
• It offers a wide operating voltage range, making it suitable for different power supply configurations.
• This IC supports both static and dynamic display modes.
• It has built-in decoding and multiplexing circuitry, reducing the external component count.
• The ICM7218DIJI provides versatile control options for driving common cathode or common anode displays.
• It offers low power consumption and high reliability.

Package

The ICM7218DIJI is available in a DIP (Dual In-line Package) format.

Essence

The essence of ICM7218DIJI lies in its ability to drive LED displays efficiently and accurately, enabling the creation of visually appealing and functional electronic devices.

Packaging/Quantity

The ICM7218DIJI is typically packaged in tubes or trays, with each package containing a specified quantity of ICs. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Supply Voltage: 4.5V to 40V
• Maximum Clock Frequency: 2MHz
• Display Type: Common Cathode or Common Anode
• Number of Digits: 8
• Multiplexing Ratio: 1:8
• Operating Temperature Range: -40°C to +85°C
• Package Type: DIP-28

Detailed Pin Configuration

The ICM7218DIJI has a total of 28 pins. Here is the detailed pin configuration:

1. VDD - Power Supply Voltage
2. VSS - Ground
3. CLK - Clock Input
4. DIN - Serial Data Input
5. LOAD - Load Input
6. BLANK - Blank Input
7. TEST - Test Input
8. DIG1 - Digit 1 Output
9. DIG2 - Digit 2 Output
10. DIG3 - Digit 3 Output
11. DIG4 - Digit 4 Output
12. DIG5 - Digit 5 Output
13. DIG6 - Digit 6 Output
14. DIG7 - Digit 7 Output
15. DIG8 - Digit 8 Output
16. SEG A - Segment A Output
17. SEG B - Segment B Output
18. SEG C - Segment C Output
19. SEG D - Segment D Output
20. SEG E - Segment E Output
21. SEG F - Segment F Output
22. SEG G - Segment G Output
23. SEG DP - Decimal Point Output 24-28. NC - Not Connected

Functional Features

• Multiplexed LED Display: The ICM7218DIJI can drive up to 8 digits of common cathode or common anode LED displays, allowing the creation of visually appealing numeric or alphanumeric displays.
• Built-in Decoding and Multiplexing: This IC eliminates the need for external decoding and multiplexing circuitry, simplifying the design and reducing component count.
• Versatile Control Options: The ICM7218DIJI supports both static and dynamic display modes, providing flexibility in controlling the LED display.
• Low Power Consumption: With its efficient design, this IC consumes minimal power, making it suitable for battery-powered applications.
• High Reliability: The ICM7218DIJI is designed to offer high reliability, ensuring consistent performance over extended periods of use.

Advantages and Disadvantages

Advantages

• Simplified circuit design due to built-in decoding and multiplexing.
• Versatile control options for different display modes.
• Wide operating voltage range allows flexibility in power supply configurations.
• Low power consumption, suitable for battery-powered devices.
• High reliability ensures consistent performance.

Disadvantages

• Limited to driving 8-digit displays.
• Requires additional external components for complete functionality.
• May not be suitable for applications requiring a higher number of digits or advanced features.

Working Principles

The ICM7218DIJI operates by receiving clock and data signals. It decodes the input data and drives the appropriate segments and digits of the LED display. The multiplexing feature allows the IC to cycle through each digit rapidly, giving the illusion of a continuous display. The control inputs, such as LOAD, BLANK, and TEST, provide additional functionality for controlling the display behavior.

Detailed Application Field Plans

The ICM7218DIJI finds application in various electronic devices, including: - Digital Panel Meters: Used for measuring and displaying various parameters such as voltage, current, temperature, etc. - Clocks and Timers: Enables