ICL7665ACSA Equivalent & Substitute Parts

Part Overview

The ICL7665ACSA is a multi-voltage supervisor IC manufactured by Analog Devices Inc./Maxim Integrated, designed for power management applications requiring monitoring of two voltage channels. This device features open drain or open collector output with active high reset functionality and operates across the industrial temperature range of 0°C to 70°C. The ICL7665ACSA is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

ICL7665ACSA

Analog Devices Inc./Maxim IntegratedIn Stock: 3776ICL7665ACSA Datasheet

Current PartRFQ

ICL7665ACSA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2604ICL7665ACSA+ Datasheet

DirectRFQ

ICL7665CSA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1402ICL7665CSA+ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ICL7665ACSA is determined by strict equivalence across the following critical parameters:

• Functional Type: Multi-voltage supervisor with 2-channel monitoring capability
• Output Configuration: Open drain or open collector output topology
• Reset Characteristics: Active high reset with <1ms minimum timeout
• Voltage Threshold Control: Adjustable/selectable threshold capability
• Package Compatibility: 8-SOIC surface mount package (0.154", 3.90mm width)
• Operating Temperature Range: 0°C to 70°C
• Electrical Interface: Identical pin configuration and signal levels

The identified substitute parts maintain full parametric equivalence across all monitored channels, output behavior, and thermal operating conditions. Substitution is valid where system design does not impose additional constraints beyond the specified parameters.

Parameter Comparison

Engineering Selection Recommendations

ICL7665ACSA+ is the direct substitute for the obsolete ICL7665ACSA. Both parts share identical parametric specifications and package configuration. The ICL7665ACSA+ maintains active product status and achieves ROHS3 compliance, making it suitable for new designs and legacy system replacements where regulatory compliance is required.

ICL7665CSA+ is a parametric equivalent offering identical functional and electrical characteristics. This part also maintains active product status and ROHS3 compliance. Selection between ICL7665ACSA+ and ICL7665CSA+ depends on availability and supply chain considerations, as both parts satisfy all specified electrical and mechanical requirements.

For systems currently using the obsolete ICL7665ACSA, transition to either ICL7665ACSA+ or ICL7665CSA+ is supported without circuit modification, provided the design operates within the specified temperature range and does not impose additional constraints beyond the documented parameters.

Frequently Asked Questions (FAQ)

Q: Can ICL7665ACSA+ directly replace ICL7665ACSA in existing designs?

A: Yes. The ICL7665ACSA+ maintains identical parametric specifications, package configuration, and pin assignment. No circuit modifications are required for substitution.

Q: What is the difference between ICL7665ACSA+ and ICL7665CSA+?

A: Both parts are parametrically equivalent across all monitored electrical and mechanical parameters. The difference lies in product designation and supply chain availability. Both are active products with ROHS3 compliance.

Q: Is the 8-SOIC package identical across all three part numbers?

A: Yes. All three parts use the 8-SOIC package with 0.154" width (3.90mm). Pin configuration and footprint are identical, supporting direct PCB-level substitution.

Q: Does the obsolete status of ICL7665ACSA affect substitution compatibility?

A: No. Obsolete status indicates the part is no longer manufactured. Substitution is based on parametric equivalence. ICL7665ACSA+ and ICL7665CSA+ provide identical functionality and are actively produced.

Q: Are there temperature range limitations when substituting these parts?

A: All three parts operate across 0°C to 70°C. Substitution is valid within this range. Systems requiring extended temperature operation require alternative component selection.

Q: What is the significance of ROHS3 compliance for the substitute parts?

A: ROHS3 compliance indicates the substitute parts meet current regulatory requirements for hazardous substance restrictions. The original ICL7665ACSA is RoHS non-compliant. Compliance status should be verified against system-level regulatory requirements.