ISD2560P Voice Record/Playback IC Equivalent & Substitute Parts

Part Overview

The ISD2560P is a ChipCorder® voice record/playback interface IC manufactured by Nuvoton Technology Corporation, designed for single-message voice recording and playback applications with a 1-minute duration capacity. The device features pushbutton control, analog microphone input, and PWM speaker output with automatic gain control.

The ISD2560P is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure component availability for production, and support long-term product maintenance where original inventory becomes depleted.

Substiute Parts

ISD2560P

Nuvoton Technology CorporationIn Stock: 1928ISD2560P Datasheet

Current PartRFQ

ISD1760PY

Nuvoton Technology CorporationIn Stock: 1984ISD1760PY Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ISD2560P is determined by compatibility across the following critical parameters:

Package and Mounting: Both the main part and substitute must use 28-DIP through-hole packaging to ensure direct PCB compatibility without layout modifications.

Functional Interface: The substitute must support pushbutton control and accept analog microphone input to maintain signal chain compatibility with existing circuitry.

Output Characteristics: The substitute must provide PWM speaker output or compatible analog output to drive existing speaker amplification stages.

Signal Processing: The substitute must support multiple messaging and automatic gain control to preserve functional behavior in voice recording and playback applications.

Supply Voltage Range: The substitute voltage range must overlap with or encompass the original 4.5 V ~ 5.5 V specification to ensure operation within existing power supply designs.

Operating Temperature: The substitute must support the 0°C ~ 70°C operating range to maintain thermal compatibility.

Parameter Comparison

Engineering Selection Recommendations

The ISD1760PY is the manufacturer-recommended substitute for the ISD2560P. Selection is based on the following engineering criteria:

Package Compatibility: Both devices use identical 28-DIP through-hole packaging, enabling direct PCB substitution without layout modifications.

Functional Equivalence: The ISD1760PY maintains all core voice recording and playback functionality, including pushbutton interface, microphone input, PWM speaker output, multiple messaging, and automatic gain control.

Parameter Overlap: The ISD1760PY's configurable sampling frequency (4 ~ 12kHz) and duration range (40 ~ 120 Sec) encompass the ISD2560P's fixed 8kHz sampling and 1-minute duration specifications.

Supply Voltage Compatibility: The ISD1760PY's 2.4 V ~ 5.5 V supply range fully encompasses the ISD2560P's 4.5 V ~ 5.5 V requirement, ensuring operation within existing power supply designs.

Product Status and Availability: The ISD1760PY is in active production with documented inventory availability, addressing the obsolescence of the ISD2560P.

Regulatory Compliance: The ISD1760PY meets ROHS3 compliance requirements, supporting modern manufacturing and environmental standards.

Design Considerations: The ISD1760PY includes an additional SPI interface and volume control feature not present in the ISD2560P. Existing designs using only pushbutton control and fixed gain will operate without modification. Designs requiring external oscillator control should verify internal oscillator configuration options with the device datasheet.

Frequently Asked Questions (FAQ)

Q: Can the ISD1760PY be used as a direct replacement for the ISD2560P without PCB modifications?

A: Yes. Both devices use identical 28-DIP through-hole packaging with the same pin pitch and dimensions. Direct PCB substitution is possible without layout changes. Existing pushbutton control and microphone input circuitry will function without modification.

Q: What are the key differences between the ISD2560P and ISD1760PY?

A: The ISD1760PY offers extended recording duration (40 ~ 120 seconds versus fixed 1 minute), configurable sampling frequency (4 ~ 12kHz versus fixed 8kHz), additional SPI interface capability, volume control feature, wider supply voltage range (2.4 V ~ 5.5 V), and ROHS3 compliance. The ISD2560P uses internal or external oscillator selection, while the ISD1760PY uses internal oscillator only.

Q: Is the ISD1760PY compatible with the existing power supply design for the ISD2560P?

A: Yes. The ISD2560P requires 4.5 V ~ 5.5 V supply voltage. The ISD1760PY supports 2.4 V ~ 5.5 V, which fully encompasses this range. Existing power supply designs will operate the ISD1760PY without modification.

Q: Will the ISD1760PY work with existing microphone input and speaker output circuitry?

A: Yes. Both devices accept analog single-ended microphone input and provide PWM speaker output. The ISD1760PY additionally supports analog single-ended output, providing flexibility for existing amplification stages. Existing circuitry designed for the ISD2560P will function with the ISD1760PY.

Q: What is the impact of the ISD1760PY's internal-only oscillator compared to the ISD2560P's internal/external oscillator option?

A: The ISD2560P supports both internal and external oscillator configurations. The ISD1760PY uses internal oscillator only. Designs relying on external oscillator control must be evaluated against the ISD1760PY's internal oscillator specifications. Designs using the internal oscillator option will transition without modification.

Q: Is the ISD1760PY available in the same packaging options as the ISD2560P?

A: Both devices are available in 28-DIP through-hole packaging. The ISD1760PY is supplied in tube packaging. This does not affect electrical or mechanical compatibility for PCB assembly.

Q: Does the ISD1760PY's additional SPI interface affect compatibility with existing designs?

A: No. The SPI interface is an additional feature that does not interfere with pushbutton control operation. Existing designs using only pushbutton interface will function without modification. The SPI interface is optional and available for designs requiring serial communication capability.