ICM7212IQH-D Equivalent & Substitute Parts

Part Overview

The ICM7212IQH-D is a 7-segment LED driver manufactured by Analog Devices Inc./Maxim Integrated, designed to drive 4-digit LED displays using BCD interface control. This Surface Mount device operates from 4V to 6V with a maximum supply current of 200 mA and is housed in a 44-PLCC package. The product is currently obsolete, making equivalent or substitute parts necessary for new designs or legacy system replacements.

Substiute Parts

ICM7212IQH-D

Analog Devices Inc./Maxim IntegratedIn Stock: 875ICM7212IQH-D Datasheet

Current PartRFQ

CD74HC4511E

Texas InstrumentsIn Stock: 1746CD74HC4511E Datasheet

MFR RecommendedRFQ

CD74HCT4543E

Harris CorporationIn Stock: 28866CD74HCT4543E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the ICM7212IQH-D is constrained by the following critical parameters: BCD interface compatibility, 7-segment LED driver functionality, and voltage supply range of 4V to 6V. The substitute parts identified operate within these functional boundaries but differ in digit capacity and package type.

The CD74HC4511E and CD74HCT4543E are single-digit 7-segment LED drivers with BCD interface, requiring cascading or multiplexing techniques to achieve multi-digit display control equivalent to the ICM7212IQH-D's native 4-digit capability. Both substitutes operate at reduced supply current levels and support the required BCD control interface.

Key substitution parameters:

• BCD interface requirement
• 7-segment LED driver function
• Voltage supply compatibility (minimum 4V operation)
• RoHS compliance status

Parameter Comparison

Engineering Selection Recommendations

For applications requiring direct replacement of the ICM7212IQH-D, the CD74HC4511E is the preferred substitute based on active product status and ROHS3 compliance. This device maintains BCD interface compatibility and operates within the required voltage range, though it is limited to single-digit control and requires through-hole mounting.

The CD74HCT4543E provides equivalent BCD interface functionality but is obsolete and RoHS non-compliant, making it unsuitable for new designs or applications with environmental compliance requirements.

Design modifications are necessary when substituting either part, as the single-digit architecture requires external multiplexing or cascading logic to replicate the ICM7212IQH-D's 4-digit native capability. The transition from surface mount to through-hole packaging also requires PCB layout redesign.

Frequently Asked Questions (FAQ)

Q: Can the CD74HC4511E directly replace the ICM7212IQH-D without circuit modifications?

A: No. The CD74HC4511E is a single-digit driver, while the ICM7212IQH-D controls 4 digits. Direct substitution requires external multiplexing circuitry or multiple CD74HC4511E devices with digit selection logic.

Q: What is the voltage compatibility between these parts?

A: The ICM7212IQH-D operates at 4V to 6V. The CD74HC4511E operates at 2V to 6V, providing broader low-voltage support. The CD74HCT4543E operates at 4.5V to 5.5V, which overlaps with the ICM7212IQH-D range but with narrower tolerance.

Q: Are there package compatibility considerations?

A: Yes. The ICM7212IQH-D uses 44-PLCC surface mount packaging, while both substitutes use 16-DIP through-hole packages. PCB redesign is required for any substitution.

Q: Which substitute is recommended for new designs?

A: The CD74HC4511E is recommended due to active product status and ROHS3 compliance. The CD74HCT4543E is obsolete and RoHS non-compliant.

Q: What is the BCD interface requirement?

A: BCD (Binary Coded Decimal) interface means the driver accepts 4-bit binary input to select which of the 16 possible 7-segment display patterns to show. All three parts support this standard interface.