ISD2560S Equivalent & Substitute Parts

Part Overview

The ISD2560S is a voice record/playback IC from Nuvoton Technology Corporation's ChipCorder® series, designed for single-message applications with 1-minute recording duration. This component features pushbutton interface control, analog single-ended microphone input, and PWM speaker output capability. The product is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing system support.

Substiute Parts

ISD2560S

Nuvoton Technology CorporationIn Stock: 2181ISD2560S Datasheet

Current PartRFQ

ISD1760SY

Nuvoton Technology CorporationIn Stock: 3592ISD1760SY Datasheet

MFR RecommendedRFQ

ISD4002-120PY

Nuvoton Technology CorporationIn Stock: 1967ISD4002-120PY Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the ISD2560S is determined by compatibility across the following critical parameters:

Primary Substitution Criteria:

• Manufacturer: Nuvoton Technology Corporation (ChipCorder® series)
• Category: Interface (voice record/playback functionality)
• Messaging capability: Multiple message support
• Operating temperature range: 0°C ~ 70°C (TA)
• REACH and ECCN compliance: REACH Unaffected, EAR99

Secondary Compatibility Factors:

• Recording duration capability (minimum 1 minute)
• Sampling frequency (8kHz or compatible range)
• Input/output signal compatibility
• Package form factor and mounting type
• Supply voltage overlap

The substitute parts ISD1760SY and ISD4002-120PY maintain core ChipCorder® functionality and environmental compliance. However, each presents distinct trade-offs in interface type, packaging, and electrical specifications that must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

ISD1760SY Substitution: The ISD1760SY is an active product offering extended recording duration (40–120 seconds) with dual interface support (pushbutton and SPI). It maintains the 28-SOIC surface-mount package and shares the same operating temperature range. The ISD1760SY provides broader supply voltage compatibility (2.4–5.5V) and includes volume control in addition to automatic gain control. However, the recording duration falls short of the ISD2560S 1-minute specification at its minimum (40 seconds). The ISD1760SY achieves ROHS3 compliance, addressing environmental regulatory requirements absent in the obsolete ISD2560S.

ISD4002-120PY Substitution: The ISD4002-120PY is an active product with 2-minute recording duration, exceeding the ISD2560S specification. It maintains 8kHz sampling frequency and 3.4kHz filter pass band alignment. The component features SPI interface exclusively, eliminating pushbutton control capability. The through-hole 28-DIP package differs from the surface-mount 28-SOIC form factor, requiring PCB redesign. Supply voltage range (2.7–3.3V) is narrower than the ISD2560S and incompatible with 5V systems. The ISD4002-120PY achieves ROHS3 compliance and includes auto-mute functionality.

Compliance Considerations: Both substitute parts achieve ROHS3 compliance, addressing modern environmental standards. The ISD2560S RoHS non-compliance status makes migration to either substitute necessary for new designs subject to RoHS regulations. All three components maintain REACH Unaffected and EAR99 ECCN classifications.

Frequently Asked Questions (FAQ)

Q: Can ISD1760SY directly replace ISD2560S in existing designs? A: The ISD1760SY shares the 28-SOIC surface-mount package and operating temperature range, enabling direct socket substitution in most applications. However, the recording duration specification (40–120 seconds minimum) falls below the ISD2560S 1-minute baseline. Verify that your application tolerates this duration reduction. The ISD1760SY supports both pushbutton and SPI interfaces, providing backward compatibility with pushbutton-only designs.

Q: What are the key differences between ISD1760SY and ISD4002-120PY? A: The ISD1760SY maintains surface-mount 28-SOIC packaging and dual interface support (pushbutton/SPI), while the ISD4002-120PY uses through-hole 28-DIP packaging with SPI-only interface. Recording duration differs: ISD1760SY provides 40–120 seconds; ISD4002-120PY provides 2 minutes. Supply voltage ranges are incompatible: ISD1760SY operates 2.4–5.5V; ISD4002-120PY operates 2.7–3.3V. The ISD4002-120PY is unsuitable for 5V systems.

Q: Does supply voltage compatibility affect substitution? A: Yes. The ISD2560S requires 4.5–5.5V operation. The ISD1760SY supports this range (2.4–5.5V), enabling direct voltage compatibility. The ISD4002-120PY operates only at 2.7–3.3V, requiring external voltage regulation or system redesign for 5V applications. Verify your power supply specifications before selection.

Q: What packaging considerations apply to these substitutes? A: The ISD2560S and ISD1760SY both use 28-SOIC surface-mount packages, allowing direct PCB footprint compatibility. The ISD4002-120PY uses 28-DIP through-hole packaging, requiring PCB redesign and different assembly processes. Surface-mount components (SOIC) are preferred for modern manufacturing; through-hole components (DIP) are suitable for prototyping and legacy systems.

Q: Are there interface control differences? A: The ISD2560S uses pushbutton interface control exclusively. The ISD1760SY supports both pushbutton and SPI interfaces, maintaining backward compatibility while enabling serial control options. The ISD4002-120PY supports SPI interface only, eliminating pushbutton control. If your design relies on pushbutton operation, the ISD1760SY is the appropriate substitute.

Q: How do RoHS compliance changes affect component selection? A: The ISD2560S is RoHS non-compliant. Both substitutes (ISD1760SY and ISD4002-120PY) achieve ROHS3 compliance. If your application or market requires RoHS compliance, migration to either substitute is mandatory. Verify compliance requirements with your procurement and regulatory teams.

Q: What is the impact of recording duration differences? A: The ISD2560S provides 1 minute (60 seconds) recording duration. The ISD1760SY provides 40–120 seconds (minimum 40 seconds). The ISD4002-120PY provides 2 minutes (120 seconds). If your application requires exactly 60 seconds, the ISD1760SY minimum specification (40 seconds) may be insufficient. The ISD4002-120PY exceeds requirements but requires packaging and voltage redesign.