ISD1416PI Equivalent & Substitute Parts

Part Overview

The ISD1416PI is a voice record/playback interface IC manufactured by Nuvoton Technology Corporation, part of the ChipCorder® series. This device provides multiple message recording and playback functionality with a 16-second duration capacity, designed for pushbutton-controlled applications with analog microphone input and PWM speaker output.

The ISD1416PI is classified as obsolete. Identifying suitable substitute components is necessary for ongoing system maintenance, design updates, and procurement continuity when original inventory becomes unavailable.

Substiute Parts

ISD1416PI

Nuvoton Technology CorporationIn Stock: 3131ISD1416PI Datasheet

Current PartRFQ

ISD1740PY

Nuvoton Technology CorporationIn Stock: 944ISD1740PY Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ISD1416PI is determined by compatibility across the following critical parameters:

Physical Compatibility:

• Package type: 28-DIP (0.600", 15.24mm)
• Mounting type: Through Hole

Functional Compatibility:

• Interface type: Pushbutton control capability
• Input signal: Analog microphone input support
• Output signal: Speaker output capability (PWM or Analog)
• Messaging: Multiple message support
• Oscillator: Internal oscillator

Electrical Compatibility:

• Supply voltage range must overlap or encompass the original 4.5 V ~ 5.5 V range
• Operating temperature range must support the application requirements

The ISD1740PY qualifies as a substitute based on matching physical package, functional interface requirements, and electrical operating parameters within acceptable ranges for voice record/playback applications.

Parameter Comparison

Engineering Selection Recommendations

The ISD1740PY is the manufacturer-recommended substitute for the obsolete ISD1416PI. Both devices share identical physical packaging (28-DIP) and core functional architecture within the ChipCorder® series.

Status Consideration: The ISD1416PI is obsolete, while the ISD1740PY maintains active product status with current manufacturing support and availability.

Compliance Consideration: The ISD1740PY achieves ROHS3 compliance, whereas the ISD1416PI is RoHS non-compliant. Applications subject to RoHS regulatory requirements must use the ISD1740PY or equivalent compliant alternatives.

Operational Differences: The ISD1740PY provides extended recording duration (26 ~ 80 seconds versus 16 seconds), variable sampling frequency (4 ~ 12kHz versus fixed 8kHz), and additional volume control functionality. The ISD1740PY also supports SPI interface in addition to pushbutton control, offering expanded system integration options.

Temperature Range: The ISD1416PI operates across -40°C ~ 85°C, while the ISD1740PY operates across 0°C ~ 70°C. Applications requiring extended low-temperature operation below 0°C must evaluate alternative solutions.

Supply Voltage: The ISD1740PY accepts a wider supply voltage range (2.4 V ~ 5.5 V) compared to the ISD1416PI (4.5 V ~ 5.5 V), providing greater flexibility for low-voltage applications.

Frequently Asked Questions (FAQ)

Q: Can the ISD1740PY directly replace the ISD1416PI in existing designs?

A: Physical package compatibility is confirmed (both 28-DIP through-hole). Functional compatibility exists for pushbutton interface, microphone input, and speaker output. Design verification is required to confirm that the extended recording duration, variable sampling frequency, and additional SPI interface do not introduce unintended behavior in existing firmware or control logic.

Q: What are the key differences between these two parts?

A: The ISD1740PY offers extended recording duration (26 ~ 80 seconds), variable sampling frequency (4 ~ 12kHz), SPI interface support, volume control, wider supply voltage range (2.4 V ~ 5.5 V), and ROHS3 compliance. The ISD1416PI provides fixed 16-second duration, fixed 8kHz sampling, pushbutton-only interface, and extended low-temperature operation (-40°C minimum).

Q: Is the ISD1740PY suitable for applications requiring -40°C operation?

A: No. The ISD1740PY minimum operating temperature is 0°C. Applications requiring -40°C operation must identify alternative components within the ChipCorder® series or other manufacturers' voice record/playback IC families.

Q: Does the ISD1740PY require different PCB layout or component support compared to the ISD1416PI?

A: Both devices use identical 28-DIP package dimensions and through-hole mounting. PCB footprints are directly compatible. Component support requirements must be verified against the respective device datasheets, as the ISD1740PY may include additional functional pins or control requirements related to SPI interface and volume control features.

Q: What is the impact of RoHS compliance on component selection?

A: The ISD1416PI is RoHS non-compliant, while the ISD1740PY is ROHS3 compliant. Applications subject to RoHS directives (EU 2011/65/EU and amendments) must use ROHS3-compliant components. The ISD1740PY satisfies this regulatory requirement.