CS48L32-CNZ Equivalent & Substitute Parts

Part Overview

The CS48L32-CNZ is a low-power voice digital signal processor (DSP) manufactured by Cirrus Logic Inc., designed for embedded audio processing applications. This part is classified as an integrated circuit in the audio processor category and features a 64-pin very fine pitch quad flat no-lead (VFQFN) package with exposed pad.

The CS48L32-CNZ has been discontinued at DiGi Electronics. Due to this discontinuation status, identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for production and maintenance applications.

Substiute Parts

CS48L32-CNZ

Cirrus Logic Inc.In Stock: 1025CS48L32-CNZ Datasheet

Current PartRFQ

CS48L32-CNZR

Cirrus Logic Inc.In Stock: 17179CS48L32-CNZR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CS48L32-CNZ is determined by strict equivalence across the following critical parameters:

• Manufacturer and base product number (CS48L32 series)
• Audio processor functionality and DSP architecture
• Interface specifications (Quad-SPI, SPI)
• Clock rate (100 MHz)
• On-chip RAM capacity (768 kB)
• Core voltage requirements (1.2V, 1.8V)
• Operating temperature range (-40°C to 85°C)
• Physical package specification (64-VFQFN Exposed Pad, 64-QFN 8x8)
• Surface mount mounting type

The CS48L32-CNZR qualifies as a direct substitute based on identical electrical specifications and package configuration. The primary distinction is packaging format and product status.

Parameter Comparison

Engineering Selection Recommendations

The CS48L32-CNZR is the direct substitute for the discontinued CS48L32-CNZ. Both parts share identical electrical and mechanical specifications, including interface protocols, clock frequency, memory configuration, voltage requirements, and thermal operating range.

The CS48L32-CNZR maintains active product status with Cirrus Logic Inc., ensuring ongoing availability and supply chain continuity. The part carries ROHS3 compliance, meeting current regulatory requirements. The primary operational difference is packaging format: the CS48L32-CNZR is supplied in Tape & Reel format, which is standard for production volume applications, whereas the original CS48L32-CNZ was supplied in bulk packaging.

For new designs or production restocking, the CS48L32-CNZR is the appropriate selection. Existing inventory of CS48L32-CNZ units remains functionally equivalent and may be used interchangeably in applications where the electrical and thermal specifications are met.

Frequently Asked Questions (FAQ)

Q: Can the CS48L32-CNZR be used as a direct replacement for the CS48L32-CNZ in existing designs?

A: Yes. The CS48L32-CNZR is electrically and mechanically identical to the CS48L32-CNZ. Both parts feature the same 100 MHz clock rate, 768 kB on-chip RAM, Quad-SPI and SPI interfaces, core voltage specifications (1.2V, 1.8V), operating temperature range (-40°C to 85°C), and 64-VFQFN package configuration. No design modifications are required.

Q: What is the difference between CS48L32-CNZ and CS48L32-CNZR?

A: The primary differences are product status and packaging format. The CS48L32-CNZ is discontinued and supplied in bulk packaging. The CS48L32-CNZR is an active product supplied in Tape & Reel format, which is standard for automated assembly and production environments. Both parts are functionally equivalent.

Q: Are there any compliance differences between these parts?

A: Both parts are RoHS compliant. The CS48L32-CNZ carries RoHS Compliant status, while the CS48L32-CNZR carries ROHS3 Compliant status, reflecting current regulatory standards. Both parts are REACH Unaffected and carry identical ECCN and HTSUS classifications.

Q: What is the moisture sensitivity level for these parts?

A: Both the CS48L32-CNZ and CS48L32-CNZR have a Moisture Sensitivity Level (MSL) of 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Is the 64-QFN (8x8) package suitable for high-volume production?

A: Yes. The 64-QFN (8x8) package is a standard surface mount package suitable for automated assembly. The CS48L32-CNZR is supplied in Tape & Reel format, which is optimized for high-volume production environments.