ICL7136CPL-3 Equivalent & Substitute Parts

Part Overview

The ICL7136CPL-3 is a display driver IC manufactured by Analog Devices Inc./Maxim Integrated, designed for 4.6-digit display applications in a 40-pin DIP package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and production continuity. The original part operates on a single 9V supply and is rated for 0°C to 70°C operating temperature range. Due to its obsolete status, identifying compatible alternatives is essential for system redesign and component sourcing.

Substiute Parts

ICL7136CPL-3

Analog Devices Inc./Maxim IntegratedIn Stock: 868ICL7136CPL-3 Datasheet

Current PartRFQ

ICM7228AIBIZ

Renesas Electronics CorporationIn Stock: 1394ICM7228AIBIZ Datasheet

MFR RecommendedRFQ

ICM7228AIPIZ

Renesas Electronics CorporationIn Stock: 1268ICM7228AIPIZ Datasheet

MFR RecommendedRFQ

ICM7228CIPIZ

Renesas Electronics CorporationIn Stock: 1697ICM7228CIPIZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute parts identified for the ICL7136CPL-3 are based on functional equivalence in display driver applications. However, critical differences exist that must be understood for proper selection:

Key Substitution Parameters:

• Display driver functionality for numeric display applications
• LED/segment display interface capability
• Multi-digit display support (8 digits vs. 4.6 digits)
• Through-hole or surface-mount packaging availability
• Operating voltage range compatibility
• Temperature operating range
• RoHS compliance status

The ICM7228 series (AIBIZ, AIPIZ, CIPIZ variants) represents the manufacturer-recommended alternatives. These parts function as LED drivers for 7-segment, 8-digit displays. While the digit count differs from the original 4.6-digit specification, these parts provide equivalent display driver functionality for numeric display applications. The substitutes operate at lower supply voltages (4V ~ 6V) compared to the original 9V requirement, necessitating power supply redesign in host systems.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The ICL7136CPL-3 is obsolete, while all three ICM7228 variants are active products with current manufacturing support. Selection among the substitutes should prioritize active status for long-term availability and supply chain stability.

RoHS Compliance: The original ICL7136CPL-3 is RoHS non-compliant. All substitute parts (ICM7228AIBIZ, ICM7228AIPIZ, ICM7228CIPIZ) are ROHS3 compliant, meeting modern regulatory requirements for electronic components in regulated markets.

Packaging and Mounting Considerations:

• ICM7228AIPIZ and ICM7228CIPIZ: Through-hole 28-DIP packages, compatible with existing through-hole PCB designs
• ICM7228AIBIZ: Surface-mount 28-SOIC package, requires PCB redesign for SMT assembly

For through-hole designs, ICM7228AIPIZ or ICM7228CIPIZ are direct mechanical alternatives. For surface-mount designs, ICM7228AIBIZ is appropriate.

Voltage Supply Redesign: Substitution requires power supply modification from 9V to 4V ~ 6V range. System-level redesign is necessary to accommodate this voltage change.

Temperature Range: Substitute parts operate across -40°C ~ 85°C, exceeding the original 0°C ~ 70°C range, providing improved thermal performance for extended operating conditions.

Frequently Asked Questions (FAQ)

Q: Can the ICM7228 series directly replace the ICL7136CPL-3 without circuit modifications?

A: No. While both are display drivers, the ICM7228 series requires circuit redesign due to different supply voltage requirements (4V ~ 6V vs. 9V), different package pinouts (28-pin vs. 40-pin), and different display digit configurations (8 digits vs. 4.6 digits). Pin-for-pin compatibility does not exist.

Q: What is the primary reason for substitution?

A: The ICL7136CPL-3 is obsolete. The ICM7228 series represents the manufacturer-recommended active alternatives for display driver applications, ensuring continued component availability and supply chain support.

Q: Which substitute part should be selected for through-hole PCB designs?

A: ICM7228AIPIZ or ICM7228CIPIZ, both available in 28-DIP through-hole packages. These maintain through-hole mounting compatibility while requiring PCB layout redesign due to pin count reduction from 40 to 28.

Q: Which substitute part should be selected for surface-mount designs?

A: ICM7228AIBIZ, available in 28-SOIC surface-mount package. This requires SMT assembly capability and PCB redesign for surface-mount footprint implementation.

Q: Are there differences between ICM7228AIPIZ and ICM7228CIPIZ?

A: Both parts are functionally equivalent LED drivers in 28-DIP through-hole packages with identical electrical specifications. Selection between them may be based on inventory availability, supplier preference, or internal part numbering conventions. Both are ROHS3 compliant with MSL 1 rating.

Q: What is the impact of moisture sensitivity level differences?

A: The original ICL7136CPL-3 has MSL 1 (unlimited shelf life). ICM7228AIBIZ has MSL 3 (168-hour floor life after moisture exposure), requiring controlled storage conditions. ICM7228AIPIZ and ICM7228CIPIZ maintain MSL 1 rating, matching the original specification.

Q: Does the extended operating temperature range of substitutes affect compatibility?

A: The substitute parts operate across -40°C ~ 85°C versus the original 0°C ~ 70°C. This extended range provides improved performance margin for applications operating at temperature extremes, with no negative compatibility impact for systems within the original temperature specification.