IS82C54 Equivalent & Substitute Parts

Part Overview

The IS82C54 is a Programmable Timer IC operating at 8MHz, manufactured by Renesas Electronics Corporation. This component is classified as a Clock/Timing device in 28-PLCC surface mount packaging. The IS82C54 is currently listed as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing system support and new designs requiring this timer functionality.

Substiute Parts

IS82C54

Renesas Electronics CorporationIn Stock: 1526IS82C54 Datasheet

Current PartRFQ

IS82C54Z

Renesas Electronics CorporationIn Stock: 2214IS82C54Z Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IS82C54 is determined by strict equivalence across the following critical parameters:

• Frequency: 8MHz operation
• Voltage Supply: 4.5V ~ 5.5V compatibility
• Supply Current: 10 mA maximum
• Operating Temperature: -40°C ~ 85°C range
• Package Configuration: 28-LCC (J-Lead) surface mount form factor
• Moisture Sensitivity: MSL 3 (168 Hours)

The IS82C54Z qualifies as a direct substitute based on identical electrical specifications and mechanical packaging. The primary distinction is product status and compliance certification, not functional capability.

Parameter Comparison

Engineering Selection Recommendations

The IS82C54Z is the direct equivalent substitute for the obsolete IS82C54. Both components share identical electrical and mechanical specifications, ensuring pin-for-pin compatibility and functional interchangeability in circuit applications.

The IS82C54Z offers the advantage of active product status, ensuring continued availability and supply chain reliability. Additionally, the IS82C54Z meets ROHS3 compliance and REACH unaffected status, providing regulatory alignment for applications subject to environmental and hazardous substance restrictions.

Selection between these parts should be based on supply availability, compliance requirements, and project timeline. The IS82C54Z is the preferred choice for new designs and long-term production requirements due to its active status and regulatory certifications.

Frequently Asked Questions (FAQ)

Q: Can IS82C54Z be used as a direct replacement for IS82C54?

A: Yes. The IS82C54Z is electrically and mechanically identical to the IS82C54. Both operate at 8MHz with 4.5V ~ 5.5V supply voltage, 10 mA current draw, and -40°C ~ 85°C temperature range. The 28-LCC (J-Lead) package is identical, enabling direct substitution without circuit modification.

Q: What is the primary difference between IS82C54 and IS82C54Z?

A: The IS82C54 is obsolete, while IS82C54Z maintains active product status. The IS82C54Z also provides ROHS3 compliance and REACH unaffected certification, whereas the IS82C54 is RoHS non-compliant.

Q: Are there any packaging differences between these parts?

A: Both parts use 28-LCC (J-Lead) surface mount packaging with identical dimensions (11.51x11.51mm). The IS82C54Z is supplied in tube packaging, while the IS82C54 packaging specification is not detailed. This does not affect electrical or mechanical compatibility.

Q: What is the Moisture Sensitivity Level significance?

A: Both parts carry MSL 3 rating with 168-hour floor life. This indicates identical moisture handling requirements during storage and assembly processes. No difference in moisture sensitivity exists between the two parts.

Q: Should I use IS82C54Z for new designs?

A: Yes. The IS82C54Z is recommended for new designs due to active product status, ensuring long-term availability and supply chain continuity. The obsolete status of IS82C54 makes it unsuitable for new development.