CP82C55A Equivalent & Substitute Parts

Part Overview

The CP82C55A 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 CP82C55A is classified as obsolete product status. Locating equivalent or substitute components becomes necessary when original stock is depleted or when design requirements favor active production parts with extended availability and compliance certifications.

Substiute Parts

CP82C55A

Renesas Electronics CorporationIn Stock: 1368CP82C55A Datasheet

Current PartRFQ

CP82C55AZ

Renesas Electronics CorporationIn Stock: 7059CP82C55AZ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CP82C55A is determined by strict equivalence across the following critical parameters:

• Number of I/O: 24 parallel lines
• Interface: Parallel
• Output Type: Open Drain
• Current Rating: 2.5mA source/sink
• Supply Voltage: 4.5V ~ 5.5V
• Operating Temperature Range: 0°C ~ 70°C
• Package: 40-DIP (0.600", 15.24mm)
• Mounting: Through Hole

The CP82C55AZ meets all electrical and mechanical substitution criteria. Both parts share identical I/O configuration, interface characteristics, output specifications, and physical packaging. The primary distinction lies in product status and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The CP82C55AZ serves as the direct substitute for the CP82C55A based on complete electrical and mechanical equivalence. Selection between these parts should be determined by the following factors:

CP82C55A is suitable for applications where RoHS non-compliance is acceptable and obsolete component sourcing is feasible. Current inventory availability is 1,276 pieces.

CP82C55AZ is the preferred selection for new designs, production continuity, and applications requiring RoHS3 compliance. This part maintains active product status with significantly higher inventory availability at 6,999 pieces. The CP82C55AZ is supplied in tube packaging, which is standard for active production components.

Both parts are functionally interchangeable at the circuit level. No design modifications are required when substituting between CP82C55A and CP82C55AZ.

Frequently Asked Questions (FAQ)

Q: Are CP82C55A and CP82C55AZ electrically identical?

A: Yes. Both parts provide 24 parallel I/O lines with identical electrical specifications including 2.5mA output current, 4.5V to 5.5V supply voltage, and open drain output configuration.

Q: Can CP82C55AZ be used as a direct replacement for CP82C55A in existing designs?

A: Yes. The CP82C55AZ is a direct substitute. No circuit modifications, PCB changes, or firmware updates are required. Both parts use the 40-DIP package with identical pinout and mechanical dimensions.

Q: What is the primary difference between these parts?

A: The CP82C55A is obsolete, while the CP82C55AZ maintains active production status. The CP82C55AZ is ROHS3 compliant, whereas the CP82C55A is RoHS non-compliant. Inventory availability differs significantly between the two parts.

Q: Are there any compliance or certification differences?

A: The CP82C55AZ carries ROHS3 compliance and REACH unaffected status. The CP82C55A does not have these certifications. Both parts share identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications