CS82C55A-596 Equivalent & Substitute Parts

Part Overview

The CS82C55A-596 is a parallel I/O expander manufactured by Renesas Electronics Corporation, designed for interface applications requiring 24 parallel I/O lines in a 44-PLCC surface mount package. This part is classified as obsolete, which necessitates identification of functionally equivalent alternatives for new designs and ongoing system support. The CS82C55A-596 operates within a 4.5V to 5.5V supply voltage range with open drain output configuration, making it suitable for legacy industrial and embedded control systems.

Substiute Parts

CS82C55A-596

Renesas Electronics CorporationIn Stock: 1208CS82C55A-596 Datasheet

Current PartRFQ

CS82C55A-5Z96

Renesas Electronics CorporationIn Stock: 4447CS82C55A-5Z96 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CS82C55A-596 is determined by strict equivalence across the following critical parameters:

• Number of I/O lines: 24 parallel I/O channels
• Interface protocol: Parallel interface
• Output configuration: Open drain topology
• Output current capability: 2.5mA source/sink
• Supply voltage range: 4.5V ~ 5.5V
• Package form factor: 44-PLCC (16.58x16.58)
• Mounting technology: Surface mount
• Operating temperature range: 0°C ~ 70°C

The CS82C55A-5Z96 meets all electrical and mechanical substitution criteria for the CS82C55A-596. Both parts share identical I/O architecture, electrical specifications, and physical packaging. The primary distinction is product lifecycle status and compliance certification.

Parameter Comparison

Engineering Selection Recommendations

The CS82C55A-5Z96 is the direct functional equivalent for the obsolete CS82C55A-596. All electrical parameters, I/O configuration, and physical packaging are identical. The CS82C55A-5Z96 carries active product status from Renesas Electronics Corporation, ensuring continued availability and supply chain reliability.

For applications subject to RoHS compliance requirements, the CS82C55A-5Z96 meets ROHS3 certification, whereas the CS82C55A-596 does not. Both parts maintain identical MSL ratings and REACH compliance status. Selection between these parts depends on regulatory requirements and supply availability rather than functional performance.

Frequently Asked Questions (FAQ)

Q: Can the CS82C55A-5Z96 directly replace the CS82C55A-596 in existing designs?

A: Yes. Both parts are electrically and mechanically identical. The CS82C55A-5Z96 operates within the same voltage range (4.5V ~ 5.5V), provides 24 parallel I/O lines with 2.5mA output capability, and uses the identical 44-PLCC package footprint. No circuit modifications are required.

Q: What is the primary difference between these two parts?

A: The CS82C55A-596 is obsolete, while the CS82C55A-5Z96 maintains active product status. Additionally, the CS82C55A-5Z96 is ROHS3 compliant, whereas the CS82C55A-596 is not. Electrical and mechanical specifications are identical.

Q: Are there any package or pinout differences?

A: No. Both parts use the 44-PLCC (16.58x16.58) surface mount package with J-lead configuration. Pinout and footprint are identical, allowing direct PCB substitution.

Q: What does the open drain output configuration mean for circuit design?

A: Open drain outputs require external pull-up resistors to establish logic high levels. Both parts share this output topology, so existing pull-up networks designed for the CS82C55A-596 remain valid for the CS82C55A-5Z96.

Q: Are moisture sensitivity considerations the same for both parts?

A: Yes. Both parts carry MSL rating 3 (168 Hours), indicating identical moisture handling and storage requirements during manufacturing and assembly processes.