ICM7218BI/D

Display Drivers Overview

The ICM7218BI/D is an 8-digit, multiplexed LED decoder driver manufactured by Analog Devices Inc./Maxim Integrated. It utilizes CMOS technology and supports a supply voltage range of 2V to 6V with a maximum operating temperature of 85°C. The device features a parallel interface and is designed for driving 7-segment displays with decimal points. It integrates internal RAM, segment drivers, and decoding logic, eliminating the need for external components in standard applications.

Display Drivers Feature Summary

• Integrates 8x8 bit RAM for display data storage
• Supports direct driving of common-cathode or common-anode LED displays
• Includes built-in decoding logic for 7-segment configurations

Display Drivers Applications

• Multiplexed LED numeric displays
• Industrial control panel indicators
• Consumer appliance status readouts

Display Drivers Procurement Notes

Verify the specific suffix (B vs D) against the datasheet to confirm pinout compatibility and mode selection requirements. Confirm RoHS compliance status as older variants may not meet current environmental standards. Check manufacturer documentation for any obsolescence notices or recommended replacement parts before finalizing procurement plans.

Display Drivers Selection Notes

Select this component when a dedicated solution for multiplexed LED displays is required without complex microcontroller overhead. Ensure the system power supply falls within the 2V to 6V range. Verify that the host controller can provide the necessary parallel data inputs and control signals compatible with the B-series variant specifications.

Display Drivers Part Context

This part belongs to the ICM7218 family of LED display drivers originally developed by Intersil and later acquired by Maxim Integrated, now under Analog Devices. The series is known for simplifying the interface between digital logic and LED displays by combining decoding, latching, and driving functions into a single CMOS package.

Display Drivers Replacement Considerations

• ICM7218DIQI+

Display Drivers FAQ

What is the difference between the B and D variants?

The primary difference lies in the control signal configuration. The B variant uses dedicated pins for decode/shutdown modes, while the D variant often utilizes tri-state multiplexing on specific pins like MODE/SHUTDOWN to reduce GPIO usage.

Does the ICM7218 require an external clock oscillator?

No, the ICM7218 typically includes an internal oscillator circuit, allowing it to operate without external timing components for standard display refresh rates.