ICM7218DIPI LED Driver 7-Segment 8-Digit Equivalent & Substitute Parts

Part Overview

The ICM7218DIPI is a 28-pin DIP LED driver integrated circuit designed for 7-segment, 8-digit display applications. Manufactured by Analog Devices Inc./Maxim Integrated, this component operates with a supply voltage range of 2V to 6V and draws 250 µA supply current. The ICM7218DIPI is classified as obsolete, making identification of functionally equivalent substitute parts essential for ongoing design support and production continuity.

Substiute Parts

ICM7218DIPI

Analog Devices Inc./Maxim IntegratedIn Stock: 1559ICM7218DIPI Datasheet

Current PartRFQ

ICM7218DIPI+

Analog Devices Inc./Maxim IntegratedIn Stock: 1234ICM7218DIPI+ Datasheet

DirectRFQ

ICM7228AIPIZ

Renesas Electronics CorporationIn Stock: 1268ICM7228AIPIZ Datasheet

MFR RecommendedRFQ

ICM7228BIPIZ

Renesas Electronics CorporationIn Stock: 2227ICM7228BIPIZ Datasheet

MFR RecommendedRFQ

ICM7228CIPIZ

Renesas Electronics CorporationIn Stock: 1697ICM7228CIPIZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ICM7218DIPI is determined by the following critical parameters:

• Display Type & Configuration: All substitutes must support LED 7-segment display driving
• Digit Count: All substitutes must support 8-digit operation
• Package & Mounting: All substitutes must use 28-DIP through-hole packaging (0.600", 15.24mm)
• Electrical Compatibility: Supply voltage range, current consumption, and operating temperature must be compatible with the original design
• Interface Type: Parallel interface requirement must be maintained

The substitute parts identified fall into two categories:

1. Direct Manufacturer Variant (ICM7218DIPI+): Same base product number with updated RoHS compliance status
2. Manufacturer-Recommended Alternatives (ICM7228 series): Enhanced variants from Renesas Electronics Corporation with improved specifications and active product status

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Minimum Change): ICM7218DIPI+ is the primary substitute, offering identical electrical specifications and package configuration while transitioning to active product status with ROHS3 compliance. This part maintains backward compatibility with existing designs without circuit modification.

For Enhanced Performance and Extended Support: The ICM7228 series (AIPIZ, BIPIZ, CIPIZ variants) from Renesas Electronics Corporation provides active product status with extended operating temperature range (-40°C to 85°C). These parts are suitable for designs requiring improved temperature performance or long-term supply assurance. The ICM7228BIPIZ maintains the original 250 µA supply current specification, while ICM7228AIPIZ and ICM7228CIPIZ operate at 200 µA, offering reduced power consumption. All ICM7228 variants operate within the 4V to 6V supply voltage range, which is compatible with designs operating above 4V.

Compliance Considerations: All substitute parts listed are ROHS3 compliant and REACH unaffected, supporting modern regulatory requirements. The original ICM7218DIPI is RoHS non-compliant; substitution with compliant alternatives is recommended for new production or updated designs.

Frequently Asked Questions (FAQ)

Q: Can ICM7218DIPI be directly replaced with ICM7218DIPI+? A: Yes. ICM7218DIPI+ is a direct variant with identical electrical and mechanical specifications. The primary difference is active product status and ROHS3 compliance. No circuit modifications are required.

Q: What is the key difference between ICM7228AIPIZ and ICM7228BIPIZ? A: Both parts are functionally equivalent 7-segment 8-digit LED drivers in 28-DIP packaging. ICM7228AIPIZ operates at 200 µA supply current, while ICM7228BIPIZ operates at 250 µA, matching the original ICM7218DIPI specification. Selection depends on power consumption requirements.

Q: Are the ICM7228 series parts compatible with designs using 2V to 4V supply voltages? A: No. The ICM7228 series operates within 4V to 6V supply voltage range. Designs requiring operation below 4V must use ICM7218DIPI or ICM7218DIPI+. Verify your design's minimum supply voltage before substitution.

Q: What is the impact of the extended operating temperature range in ICM7228 variants? A: ICM7228 series parts operate from -40°C to 85°C, compared to -20°C to 85°C for ICM7218DIPI. This extended lower temperature limit provides improved performance in cold environment applications. Designs operating within -20°C to 85°C are compatible with both part families.

Q: Are all substitute parts available in the same packaging format? A: Yes. All substitute parts use 28-DIP (0.600", 15.24mm) through-hole packaging, identical to the original ICM7218DIPI. Direct PCB socket compatibility is maintained across all listed substitutes.

Q: What is the inventory status of these substitute parts? A: ICM7218DIPI+ (1169 pcs), ICM7228AIPIZ (1207 pcs), ICM7228BIPIZ (2200 pcs), and ICM7228CIPIZ (1668 pcs) are all listed as new original stock. Availability should be confirmed with your component supplier for current production requirements.