ICM7228CMJI883B

Display Drivers Overview

The ICM7228CMJI883B is a CMOS LED display driver manufactured by Harris Corporation, featuring an 8x8 RAM matrix and built-in segment drivers. It supports direct driving of 8-digit 7-segment displays with decimal points via multiplexing. The device accepts 8-bit parallel data input and includes internal decode logic and oscillation circuits, eliminating the need for external crystals. Designed for military specifications under the JESD-95 standard, it operates at +5V and utilizes a ceramic flatpack package to ensure reliability in harsh environments.

Display Drivers Feature Summary

• Integrated 8x8 RAM memory for display data storage
• Built-in segment and digit drive circuitry
• Internal oscillator circuit without external components
• Military-grade ceramic packaging for environmental stability

Display Drivers Applications

• Military avionics instrumentation panels
• Ruggedized industrial control systems
• Defense communication equipment displays
• Space-constrained embedded monitoring units

Display Drivers Procurement Notes

Verify that the component meets the full JESD-95 qualification requirements specified for the ICM7228 series. Confirm the presence of the 'J883B' suffix indicates compliance with MIL-PRF-38534 Class K or H standards. Ensure the ceramic flatpack package integrity is intact, as thermal cycling performance depends on hermetic sealing. Cross-reference the manufacturer lot code with Harris Corporation historical records to validate authenticity and traceability for defense procurement contracts.

Display Drivers Selection Notes

Select this variant when military-grade reliability and radiation hardness are required over commercial alternatives. The ceramic package offers superior thermal conductivity and hermetic sealing compared to plastic SOIC versions. Choose the ICM7228 over the ICM7218 if dual-bank RAM functionality or single-byte update capabilities are necessary for dynamic display refreshing. Ensure the system design accommodates the specific MODE/SHUTDOWN pin voltage thresholds required for mode selection.

Display Drivers Part Context

This component belongs to the ICM72xx family of LED display controllers developed by Harris Semiconductor, which was later acquired by Intersil and subsequently Renesas Electronics. The ICM7228 variant specifically enhances the base ICM7218 architecture by adding dual-bank RAM support and flexible mode control via tri-state pins. The 'CMJI883B' designation identifies the commercial temperature range, ceramic flatpack package, and JESD-95 military qualification respectively.

Display Drivers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Direct replacements require matching the JESD-95 military specification and ceramic flatpack package dimensions. Verify compatibility with existing PCB footprints and voltage levels before considering alternative manufacturers.