DS90340I-PCX Equivalent & Substitute Parts

Part Overview

The DS90340I-PCX is a nonvolatile SRAM with integrated timekeeping and power management functionality, manufactured by Analog Devices Inc./Maxim Integrated. This component is classified as an obsolete product, indicating it has been discontinued and is no longer in active production. The DS90340I-PCX serves a critical backup management function in applications requiring persistent memory retention during power loss events, utilizing an integrated lithium cell battery chemistry for sustained operation.

Due to its obsolete status, sourcing original inventory becomes increasingly difficult. Identifying qualified substitute components ensures design continuity and maintains system reliability in applications where this memory architecture is essential.

Substiute Parts

DS90340I-PCX

Analog Devices Inc./Maxim IntegratedIn Stock: 869DS90340I-PCX Datasheet

Current PartRFQ

DS9034I-PCX+

Analog Devices Inc./Maxim IntegratedIn Stock: 24188DS9034I-PCX+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DS90340I-PCX is determined by strict alignment of the following critical parameters:

• Functional Equivalence: Both components must provide nonvolatile SRAM with integrated timekeeping and backup management capabilities
• Package Compatibility: Both must utilize the 34-PowerCap™ Module form factor to ensure mechanical and electrical fit within existing PCB layouts
• Battery Chemistry: Both must employ lithium cell technology for consistent power backup performance
• Operating Temperature Range: Both must support the -40°C to 85°C operating window
• Mounting Configuration: Both must be surface mount devices
• Manufacturer Consistency: Both must originate from Analog Devices Inc./Maxim Integrated to ensure design continuity and technical support alignment

The DS9034I-PCX+ meets all substitution criteria and is classified as an active product with improved compliance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The DS9034I-PCX+ is the qualified substitute for the DS90340I-PCX based on the following engineering criteria:

Product Status Alignment: The DS9034I-PCX+ maintains active production status, ensuring long-term availability and supply chain stability compared to the obsolete DS90340I-PCX.

Compliance Enhancement: The DS9034I-PCX+ achieves ROHS3 compliance, whereas the DS90340I-PCX is RoHS non-compliant. This compliance improvement aligns with current regulatory requirements for electronic components in regulated markets.

Moisture Sensitivity Improvement: The DS9034I-PCX+ demonstrates superior moisture handling characteristics with MSL 1 (Unlimited) rating, compared to the DS90340I-PCX MSL 3 (168 Hours) rating. This enhancement reduces handling and storage constraints during manufacturing and logistics operations.

Functional and Mechanical Equivalence: Both components share identical functional specifications, operating temperature ranges, package form factors, and battery chemistry, ensuring direct substitution without circuit redesign.

Frequently Asked Questions (FAQ)

Q: Can the DS9034I-PCX+ be used as a direct replacement for the DS90340I-PCX in existing designs?

A: Yes. Both components share identical package form factors (34-PowerCap™ Module), functional specifications, operating temperature ranges (-40°C to 85°C), and battery chemistry (Lithium Cell). No circuit modifications are required for substitution.

Q: What are the key differences between these two parts?

A: The primary differences are product status, RoHS compliance, and moisture sensitivity rating. The DS9034I-PCX+ is an active product with ROHS3 compliance and MSL 1 rating, while the DS90340I-PCX is obsolete, RoHS non-compliant, and carries MSL 3 rating.

Q: Why is the DS90340I-PCX classified as obsolete?

A: Obsolete classification indicates the manufacturer has discontinued production. The DS9034I-PCX+ represents the active successor product line from Analog Devices Inc./Maxim Integrated.

Q: Are there any packaging differences between these components?

A: Both components utilize the 34-PowerCap™ Module package. The DS9034I-PCX+ is supplied in Tube packaging, while the DS90340I-PCX packaging specification was not provided in the technical data.

Q: What does MSL 1 (Unlimited) mean compared to MSL 3 (168 Hours)?

A: MSL rating indicates moisture sensitivity level. MSL 1 (Unlimited) allows indefinite storage without moisture conditioning, while MSL 3 (168 Hours) requires moisture conditioning if storage exceeds 168 hours. The DS9034I-PCX+ offers superior handling flexibility.

Q: Are both components subject to the same shipping restrictions?

A: Yes. Both components are subject to ground shipment restrictions due to lithium cell battery content.