CS5464-IS Equivalent & Substitute Parts

Part Overview

The CS5464-IS is a single-phase energy metering IC manufactured by Cirrus Logic Inc., housed in a 28-SSOP surface mount package. This component functions as a power and energy meter for single-phase applications with 0.1% measurement accuracy. The CS5464-IS is classified as obsolete, making identification of active equivalent parts essential for new designs and ongoing production support. Substitute parts must maintain identical electrical characteristics and package specifications to ensure direct compatibility in existing circuit implementations.

Substiute Parts

CS5464-IS

Cirrus Logic Inc.In Stock: 720CS5464-IS Datasheet

Current PartRFQ

CS5464-ISZ

Cirrus Logic Inc.In Stock: 24027CS5464-ISZ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CS5464-IS is determined by strict equivalence across the following critical parameters:

• Meter Type: Single Phase (identical functional requirement)
• Package / Case: 28-SSOP (0.209", 5.30mm Width) (identical physical footprint and pin configuration)
• Input Impedance: 30kOhm (identical signal conditioning)
• Measurement Error: 0.1% (identical accuracy specification)
• Voltage - Supply: 4.75 V ~ 5.25 V (identical power supply range)
• Current - Supply: 4.6mA (identical power consumption)
• Voltage - I/O High / Low: 0.8V / 0.2V (identical logic levels)
• Operating Temperature: -40°C ~ 85°C (identical thermal operating range)
• Mounting Type: Surface Mount (identical assembly method)

The CS5464-ISZ meets all these criteria and qualifies as a direct substitute. Differences in product status, packaging format (Tube vs. standard), RoHS compliance, and MSL rating do not affect electrical or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The CS5464-ISZ is the direct substitute for the CS5464-IS. Both parts are manufactured by Cirrus Logic Inc. and share identical electrical and mechanical specifications across all critical parameters. The primary distinction is product status: the CS5464-IS is obsolete, while the CS5464-ISZ is active and currently in production.

For new designs and production continuity, the CS5464-ISZ is the appropriate selection. The CS5464-ISZ carries ROHS3 compliance, whereas the CS5464-IS is RoHS non-compliant. This compliance difference may be relevant for applications subject to RoHS regulations. Both parts are REACH Unaffected and classified under ECCN EAR99.

Frequently Asked Questions (FAQ)

Q: Can the CS5464-ISZ be used as a direct replacement for the CS5464-IS in existing designs?

A: Yes. The CS5464-ISZ is electrically and mechanically identical to the CS5464-IS. All critical parameters—meter type, package, impedance, accuracy, supply voltage, current consumption, logic levels, and operating temperature—are equivalent. No circuit modifications are required.

Q: What is the difference between CS5464-IS and CS5464-ISZ?

A: The parts are functionally identical. Differences exist in product status (obsolete vs. active), packaging format (standard vs. Tube), RoHS compliance (non-compliant vs. ROHS3 Compliant), and MSL rating (2 vs. 3). These differences do not affect electrical performance or physical compatibility.

Q: Why is the CS5464-IS classified as obsolete?

A: Obsolescence indicates the part is no longer manufactured or supported by Cirrus Logic Inc. The CS5464-ISZ is the active production equivalent and should be used for all new applications.

Q: Are there any compatibility concerns when switching from CS5464-IS to CS5464-ISZ?

A: No compatibility concerns exist. Both parts use the 28-SSOP package with identical pin configuration and electrical characteristics. PCB layout, schematic connections, and firmware remain unchanged.

Q: Does the RoHS compliance difference affect substitution?

A: RoHS compliance is a regulatory and supply chain consideration, not an electrical or mechanical one. If your application requires RoHS compliance, the CS5464-ISZ is the appropriate choice. If RoHS compliance is not a requirement, both parts are functionally equivalent.

Q: What is the MSL rating difference, and does it matter?

A: MSL (Moisture Sensitivity Level) affects storage and handling procedures. CS5464-IS has MSL 2 (1 Year); CS5464-ISZ has MSL 3 (168 Hours). This difference does not affect electrical performance but requires adherence to appropriate moisture control during storage and assembly.