ICM7218BI/D Equivalent & Substitute Parts

Part Overview

The ICM7218BI/D is a 7-segment LED driver die manufactured by Analog Devices Inc./Maxim Integrated, designed to control 8-digit LED displays via serial interface. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and production continuity. The die form factor limits direct application in standard PCB assembly, requiring either packaging conversion or selection of pre-packaged alternatives that maintain functional compatibility.

Substiute Parts

ICM7218BI/D

Analog Devices Inc./Maxim IntegratedIn Stock: 1001ICM7218BI/D Datasheet

Current PartRFQ

ICM7218BIQI+

Analog Devices Inc./Maxim IntegratedIn Stock: 2141ICM7218BIQI+ Datasheet

MFR RecommendedRFQ

ICM7218AIJIR5254

Renesas Electronics CorporationIn Stock: 1533ICM7218AIJIR5254 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the ICM7218BI/D is determined by the following criteria:

Functional Equivalence: All substitute parts share the same base product number (ICM7218), 7-segment configuration, 8-digit display capability, and serial interface protocol.

Electrical Compatibility: Substitute parts must operate within the voltage supply range of 2V to 6V and maintain compatible current consumption characteristics. The ICM7218BIQI+ maintains the 250 µA supply current specification, while the ICM7218AIJIR5254 operates at 2.5 mA with a narrower voltage range (4V ~ 6V).

Packaging Differences: The main part is supplied as a die; substitutes are available in packaged forms (28-PLCC and 28-CerDip) suitable for standard assembly processes. Package selection depends on mounting requirements: surface mount (PLCC) or through-hole (CerDip).

Product Status Consideration: The ICM7218BIQI+ is active production status, providing long-term availability. The ICM7218AIJIR5254 is obsolete, similar to the main part.

Parameter Comparison

Engineering Selection Recommendations

ICM7218BIQI+ (Primary Substitute)

This part is the recommended substitute for new designs. It maintains identical electrical specifications (250 µA supply current, 2V ~ 6V voltage range, -20°C ~ 85°C operating temperature) and is in active production status, ensuring long-term availability. The 28-PLCC surface-mount package is compatible with modern PCB assembly processes. ROHS3 compliance and EAR99 ECCN classification match regulatory requirements.

ICM7218AIJIR5254 (Alternative Substitute)

This part provides functional equivalence with extended lower operating temperature range (-40°C ~ 85°C) but operates at higher supply current (2.5 mA) and requires a narrower voltage range (4V ~ 6V). The through-hole 28-CerDip package suits legacy board designs. Obsolete product status limits future availability. Selection is appropriate only when through-hole mounting is mandatory and higher current consumption is acceptable.

Frequently Asked Questions (FAQ)

Q: Can ICM7218BIQI+ directly replace ICM7218BI/D in existing designs?

A: Electrical substitution is direct; however, the main part is supplied as a die while ICM7218BIQI+ is a packaged component. PCB layout and assembly process modifications are required. Functional performance and electrical specifications are identical.

Q: What is the primary difference between ICM7218BIQI+ and ICM7218AIJIR5254?

A: ICM7218BIQI+ is surface-mount (28-PLCC) with 250 µA supply current and active production status. ICM7218AIJIR5254 is through-hole (28-CerDip) with 2.5 mA supply current and obsolete status. Voltage range differs: ICM7218BIQI+ supports 2V ~ 6V; ICM7218AIJIR5254 requires 4V ~ 6V.

Q: Are all substitute parts RoHS compliant?

A: Yes. All parts listed (main and substitutes) are ROHS3 compliant with MSL rating of 1 (Unlimited).

Q: Which substitute should be selected for new production?

A: ICM7218BIQI+ is the appropriate choice for new designs due to active production status, ensuring component availability and supply chain continuity.

Q: Does the higher supply current of ICM7218AIJIR5254 affect circuit design?

A: Yes. The 2.5 mA supply current of ICM7218AIJIR5254 is 10 times higher than the 250 µA specification of ICM7218BIQI+. Power supply and current budgeting must be recalculated if this part is selected.

Q: Are there compatibility concerns with the narrower voltage range of ICM7218AIJIR5254?

A: Yes. ICM7218AIJIR5254 operates only within 4V ~ 6V, excluding the 2V ~ 4V range supported by ICM7218BIQI+. Circuit voltage specifications must be verified before selection.