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The Harris Semiconductor ICM7228BIJI is an integrated circuit (IC) specifically designed for interfacing large multiplexed displays with digital systems. It is part of the ICM7228 family of display drivers and provides various features to control and drive display elements efficiently. Functions: - The ICM7228BIJI is a high-performance, 8-digit, multiplexed display driver with serial/parallel input. It features a multiplexed output that can drive common-cathode or common-anode LED displays. - It includes various display modes such as blanking, intensity control, and left/right-justified displays, providing flexibility in display control. - The IC also offers a programmable slew rate for limiting display noise and reducing electromagnetic interference (EMI). Applications: - The ICM7228BIJI is commonly used in digital panel meters, clocks, industrial process monitors, and other instrumentation applications that require large multiplexed displays. - It can also be utilized in consumer electronics such as digital clocks, timers, and display modules in household appliances. Alternative Components: - MAX7219: A popular LED display driver that provides similar functionality to the ICM7228BIJI. - HT16K33: Another LED driver IC with advanced features for controlling multiplexed displays. - TLC5940: A PWM LED driver that can be used for driving multiple LEDs individually. Embedded Modules: The ICM7228BIJI does not have embedded modules. However, it can be integrated into larger systems using microcontrollers or programmable logic devices for enhanced control and functionality. Related Q&A: 1. Q: Can the ICM7228BIJI drive both common-cathode and common-anode displays? A: Yes, the ICM7228BIJI is designed to drive both common-cathode and common-anode displays, providing flexibility in display configurations. 2. Q: What is the maximum number of digits that the ICM7228BIJI can drive? A: The ICM7228BIJI is capable of driving up to 8 digits in a multiplexed configuration, making it suitable for medium to large displays. 3. Q: Is the ICM7228BIJI compatible with both serial and parallel input data? A: Yes, the ICM7228BIJI supports both serial and parallel input data, allowing for versatile interfacing with different types of digital systems. 4. Q: Can the ICM7228BIJI be cascaded with additional drivers for driving more digits? A: Yes, multiple ICM7228BIJI ICs can be cascaded together to drive additional digits in large display applications, expanding the display capacity. 5. Q: How does the programmable slew rate feature of the ICM7228BIJI help in reducing EMI? A: By controlling the transition times of the display signals, the programmable slew rate feature of the ICM7228BIJI helps in minimizing high-frequency noise and EMI generated during display operation.