ICM7224I/D Equivalent & Substitute Parts

Part Overview

The ICM7224I/D is an LCD driver die manufactured by Analog Devices Inc./Maxim Integrated, designed for 7-segment, 4.5-digit display applications. This component is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. The die form factor and specific electrical characteristics define the scope of compatible alternatives.

Substiute Parts

ICM7224I/D

Analog Devices Inc./Maxim IntegratedIn Stock: 1080ICM7224I/D Datasheet

Current PartRFQ

ICM7224IQH+D

Analog Devices Inc./Maxim IntegratedIn Stock: 1040ICM7224IQH+D Datasheet

MFR RecommendedRFQ

TC7126ACKW

Microchip TechnologyIn Stock: 1093TC7126ACKW Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the ICM7224I/D is determined by the following critical parameters:

• Display Type: LCD
• Configuration: 7-Segment
• Digits or Characters: 4.5 Digits
• Current - Supply: 10 µA
• Voltage - Supply: 3V ~ 6V
• Operating Temperature: 0°C ~ 70°C
• RoHS Status: ROHS3 Compliant

The primary substitute, ICM7224IQH+D, maintains identical electrical specifications and functional characteristics while offering an active product status in a 44-PLCC package. The secondary substitute, TC7126ACKW, provides functional equivalence for 7-segment LCD driver applications, though with a different digit configuration (4.6 digits) and modified supply voltage specification (9V).

Parameter Comparison

Engineering Selection Recommendations

ICM7224IQH+D is the primary substitute for ICM7224I/D applications. Both components share identical electrical specifications, functional configuration, and compliance certifications. The transition from die form factor to 44-PLCC package requires PCB layout modification but eliminates obsolescence risk through active product status.

TC7126ACKW serves as a secondary alternative for applications where digit resolution can be reduced from 4.5 to 4.6 digits and supply voltage can be adjusted to 9V. This substitute is manufactured by Microchip Technology and maintains active product status with equivalent RoHS3 and REACH compliance.

All substitute parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the original component.

Frequently Asked Questions (FAQ)

Q: Can ICM7224IQH+D directly replace ICM7224I/D in existing designs?

A: Electrical and functional compatibility is complete. The primary design change involves package form factor transition from die to 44-PLCC, requiring PCB layout and assembly process modifications.

Q: What are the key differences between ICM7224IQH+D and TC7126ACKW?

A: ICM7224IQH+D maintains 4.5-digit configuration and 3V-6V supply voltage range identical to the original part. TC7126ACKW operates at 9V with 4.6-digit resolution and is manufactured by Microchip Technology. Selection depends on display resolution requirements and available supply voltage in the target application.

Q: Are both substitutes RoHS3 compliant?

A: Yes. Both ICM7224IQH+D and TC7126ACKW are ROHS3 compliant and REACH unaffected, matching the regulatory status of ICM7224I/D.

Q: What packaging considerations apply to these substitutes?

A: ICM7224IQH+D uses 44-PLCC (16.59x16.59mm) package. TC7126ACKW uses 44-MQFP (10x10mm) package. Both differ from the original die form factor and require appropriate PCB footprint design and assembly handling procedures.

Q: Is the 10 µA supply current specification maintained across all substitutes?

A: ICM7224IQH+D maintains the 10 µA specification. TC7126ACKW does not specify supply current in the provided data, requiring verification against Microchip datasheets for applications with strict power consumption requirements.