ICM7242IPA Equivalent & Substitute Parts

Part Overview

The ICM7242IPA is a Counter/Timer Circuit (CTC) binary oscillator IC operating at 15MHz, manufactured by Analog Devices Inc./Maxim Integrated. This component is classified as obsolete, which necessitates identification of equivalent and substitute parts for ongoing design support and procurement. The ICM7242IPA is packaged in an 8-DIP through-hole configuration and operates across a wide supply voltage range of 2V to 16V, making it suitable for legacy timing and counting applications.

Substiute Parts

ICM7242IPA

Analog Devices Inc./Maxim IntegratedIn Stock: 1388ICM7242IPA Datasheet

Current PartRFQ

ICM7242IPA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1495ICM7242IPA+ Datasheet

DirectRFQ

ICM7242IPAZ

IntersilIn Stock: 1679ICM7242IPAZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ICM7242IPA are identified based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

• Package Type: 8-DIP (0.300", 7.62mm) through-hole configuration
• Functional Category: Counter/Timer Circuit (CTC), Binary
• Supply Voltage Range: 2V ~ 16V minimum compatibility
• Operating Temperature Range: Minimum 0°C ~ 85°C coverage
• Mounting Type: Through Hole

Two substitute parts meet these criteria:

1. ICM7242IPA+ (Direct Substitute - Active Status): Identical electrical specifications and packaging to the original part, with improved product status and RoHS3 compliance.

2. ICM7242IPAZ (Manufacturer-Recommended Substitute - Active Status): Functionally equivalent Counter/Timer Circuit with compatible packaging and supply voltage range, manufactured by Intersil.

Parameter Comparison

Engineering Selection Recommendations

ICM7242IPA+ (Direct Substitute): This part is the primary substitute for the obsolete ICM7242IPA. It maintains identical electrical specifications (15MHz frequency, 800 µA supply current, 0°C ~ 85°C operating range) and mechanical compatibility (8-DIP through-hole package). The ICM7242IPA+ is currently in active production status with ROHS3 compliance, making it suitable for new designs and legacy system maintenance where direct replacement is required.

ICM7242IPAZ (Manufacturer-Recommended Substitute): This Intersil-manufactured part provides functional equivalence as a Counter/Timer Circuit (CTC) binary IC with compatible supply voltage range (2V ~ 16V) and identical 8-DIP through-hole packaging. The ICM7242IPAZ offers extended operating temperature range (-25°C ~ 85°C) and reduced supply current (340 µA), with active product status. The frequency range of 0.1Hz ~ 13MHz encompasses the original 15MHz specification within its operational envelope, and the expanded count capability (128/256) provides additional functionality.

Frequently Asked Questions (FAQ)

Q: Can ICM7242IPA+ be used as a direct replacement for ICM7242IPA?

A: Yes. The ICM7242IPA+ is electrically and mechanically identical to the ICM7242IPA, with matching frequency (15MHz), supply voltage range (2V ~ 16V), supply current (800 µA), and operating temperature range (0°C ~ 85°C). Both use the same 8-DIP through-hole package. The primary difference is product status (Active vs. Obsolete) and improved RoHS3 compliance.

Q: What are the key differences between ICM7242IPA+ and ICM7242IPAZ?

A: Both parts share the same 8-DIP through-hole package and 2V ~ 16V supply voltage range. ICM7242IPA+ maintains the exact 15MHz frequency and 800 µA current specifications of the original. ICM7242IPAZ offers a frequency range of 0.1Hz ~ 13MHz, lower supply current (340 µA), and extended operating temperature (-25°C ~ 85°C). The choice depends on whether exact frequency matching or reduced power consumption is prioritized.

Q: Are there packaging differences between these parts?

A: All three parts use identical 8-DIP (0.300", 7.62mm) through-hole packaging. The primary packaging difference is in supplier delivery format: ICM7242IPA is supplied in standard packaging, ICM7242IPA+ in tube packaging, and ICM7242IPAZ in bulk packaging. This does not affect electrical or mechanical compatibility on the PCB.

Q: Which substitute is recommended for new designs?

A: Selection depends on design requirements. For direct replacement of existing ICM7242IPA circuits, use ICM7242IPA+. For new designs requiring reduced power consumption or extended temperature range, ICM7242IPAZ is suitable if the 0.1Hz ~ 13MHz frequency range meets application needs.

Q: Are there compliance considerations for substitute selection?

A: ICM7242IPA+ is ROHS3 compliant, making it suitable for applications with RoHS requirements. Both ICM7242IPA+ and ICM7242IPAZ maintain REACH Unaffected status. The original ICM7242IPA is RoHS non-compliant, which is a primary reason for substitution in regulated applications.