ISD4003-08MS Voice Record/Playback IC Equivalent & Substitute Parts

Part Overview

The ISD4003-08MS is a ChipCorder® voice record/playback interface IC designed for multiple message applications with 8 minutes of recording duration. This component features SPI interface connectivity, differential analog input, and single-ended analog output with a 4kHz sampling frequency and 1.7kHz filter pass band.

The ISD4003-08MS carries an Obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications currently utilizing this component.

Substiute Parts

ISD4003-08MS

Nuvoton Technology CorporationIn Stock: 1123ISD4003-08MS Datasheet

Current PartRFQ

ISD4003-08MSY

Nuvoton Technology CorporationIn Stock: 1051ISD4003-08MSY Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ISD4003-08MS is determined by strict equivalence across the following critical parameters:

• Interface protocol: SPI
• Input/Output signal characteristics: Analog - Differential input, Analog - Single Ended output
• Sampling frequency: 4kHz
• Recording duration: 8 minutes
• Filter pass band: 1.7kHz
• Messaging capability: Multiple
• Oscillator configuration: Internal/External
• Package type: 28-SOIC
• Supply voltage range: 2.7 V ~ 3.3 V
• Operating temperature range: 0°C ~ 70°C

The ISD4003-08MSY qualifies as a direct substitute based on complete parameter alignment across all electrical and mechanical specifications. The primary distinction is product status and compliance certification.

Parameter Comparison

Engineering Selection Recommendations

The ISD4003-08MSY is the direct substitute for the ISD4003-08MS. Both components share identical electrical and mechanical specifications, ensuring functional compatibility in existing circuit designs without modification.

The ISD4003-08MSY offers two significant advantages over the ISD4003-08MS:

1. Active product status ensures ongoing manufacturer support and supply chain availability
2. ROHS3 compliance satisfies current environmental and regulatory requirements, whereas the ISD4003-08MS is RoHS non-compliant

For new designs or production transitions, the ISD4003-08MSY is the appropriate selection. For existing applications currently using the ISD4003-08MS, the ISD4003-08MSY provides a compliant replacement with identical performance characteristics.

Frequently Asked Questions (FAQ)

Q: Are the ISD4003-08MS and ISD4003-08MSY electrically interchangeable?

A: Yes. Both components share identical electrical specifications including SPI interface, 4kHz sampling frequency, 8-minute recording duration, 2.7V to 3.3V supply voltage range, and 0°C to 70°C operating temperature range. No circuit modifications are required for substitution.

Q: What is the difference between these two part numbers?

A: The primary differences are product status and compliance certification. The ISD4003-08MSY is an active product with ROHS3 compliance and tube packaging, while the ISD4003-08MS is obsolete, RoHS non-compliant, and supplied in bulk packaging.

Q: Can I use the ISD4003-08MSY in place of the ISD4003-08MS in existing designs?

A: Yes. The ISD4003-08MSY is a direct substitute with identical package type (28-SOIC), pin configuration, and functional specifications. No PCB redesign or firmware changes are necessary.

Q: What is the significance of the packaging difference?

A: The ISD4003-08MS is supplied in bulk packaging, while the ISD4003-08MSY is supplied in tube packaging. This affects handling and storage procedures but does not impact electrical or mechanical performance.

Q: Why is the ISD4003-08MS marked as obsolete?

A: The ISD4003-08MS has reached end-of-life status. The ISD4003-08MSY represents the current production equivalent and is recommended for all new applications and production transitions.