IP82C55A Equivalent & Substitute Parts

Part Overview

The IP82C55A is a parallel I/O expander manufactured by Renesas Electronics Corporation, designed to provide 24 parallel input/output lines in a 40-DIP package. This component functions as a transponder interface for parallel communication applications requiring expanded I/O capability.

The IP82C55A is classified as obsolete. Locating equivalent substitute parts is necessary for system redesign, board revision, or when original inventory becomes unavailable. The IP82C55AZ serves as the direct active production equivalent, offering identical electrical and mechanical specifications with improved compliance status.

Substiute Parts

IP82C55A

Renesas Electronics CorporationIn Stock: 1655IP82C55A Datasheet

Current PartRFQ

IP82C55AZ

Renesas Electronics CorporationIn Stock: 2265IP82C55AZ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IP82C55A with the IP82C55AZ is valid based on the following criteria:

Electrical Parameters Match:

• Number of I/O: 24 (identical)
• Interface: Parallel (identical)
• Output Type: Open Drain (identical)
• Current - Output Source/Sink: 2.5mA (identical)
• Voltage - Supply: 4.5V ~ 5.5V (identical)
• Operating Temperature: -40°C ~ 85°C (identical)

Mechanical Parameters Match:

• Mounting Type: Through Hole (identical)
• Package / Case: 40-DIP (0.600", 15.24mm) (identical)
• Supplier Device Package: 40-PDIP (identical)

Environmental Parameters Match:

• Moisture Sensitivity Level (MSL): 1 (Unlimited) (identical)
• ECCN: EAR99 (identical)
• HTSUS: 8542.39.0001 (identical)

The IP82C55AZ is the direct successor to the IP82C55A, maintaining full electrical, mechanical, and environmental compatibility while offering active production status and improved regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The IP82C55AZ is the appropriate selection for new designs and board revisions. This part maintains complete electrical and mechanical compatibility with the obsolete IP82C55A while offering the following advantages:

Product Status: The IP82C55AZ is in active production, ensuring long-term availability and supply chain stability compared to the obsolete IP82C55A.

Regulatory Compliance: The IP82C55AZ is ROHS3 compliant, meeting current environmental and hazardous substance restrictions. The IP82C55A is RoHS non-compliant and does not meet modern regulatory requirements.

Packaging: The IP82C55AZ is supplied in tube packaging, providing standardized handling and storage suitable for automated assembly processes.

For applications currently using the IP82C55A, direct substitution with the IP82C55AZ requires no circuit modifications, as all electrical parameters, pin configurations, and operating characteristics are identical.

Frequently Asked Questions (FAQ)

Q: Can the IP82C55AZ be used as a direct replacement for the IP82C55A?

A: Yes. The IP82C55AZ is electrically and mechanically identical to the IP82C55A. All electrical parameters, including I/O count, supply voltage, output current, operating temperature range, and package dimensions are identical. No circuit modifications are required.

Q: What is the difference between the IP82C55A and IP82C55AZ?

A: The primary differences are product status and regulatory compliance. The IP82C55A is obsolete and RoHS non-compliant. The IP82C55AZ is in active production and ROHS3 compliant. Electrically and mechanically, both parts are identical.

Q: Are there any pin configuration differences between these parts?

A: No. Both the IP82C55A and IP82C55AZ use the 40-PDIP package with identical pin assignments. The parts are pin-for-pin compatible.

Q: What does the 40-DIP package dimension (0.600", 15.24mm) refer to?

A: This dimension refers to the width of the dual inline package. Both parts use the same physical package footprint, ensuring compatibility with existing PCB layouts designed for either part.

Q: Is the IP82C55AZ suitable for new product designs?

A: Yes. The IP82C55AZ is the recommended choice for new designs. It is in active production, ROHS3 compliant, and offers long-term supply availability.

Q: What is the significance of the MSL rating of 1 (Unlimited)?

A: MSL 1 indicates the lowest moisture sensitivity level. Both parts can be stored indefinitely without special moisture control measures, simplifying inventory management and reducing handling requirements.