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ISD2540SY Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
ISD2540SYISD110Yes

ISD2540SY is a single-chip voice record and playback device manufactured by ISD (Integrated Silicon Solution Inc.

The ISD2540SY is a single-chip voice record and playback device manufactured by ISD (Integrated Silicon Solution Inc.). Below are its key specifications, descriptions, and features:

Specifications:

  • Duration: 40 seconds (at 8 kHz sampling rate)
  • Sampling Frequency: 8 kHz (default)
  • Supply Voltage: 3V (2.4V - 5.5V operating range)
  • Non-Volatile Storage: Utilizes multi-level storage (MLS) technology
  • Audio Output: Direct speaker drive (up to 12.5mW into 16Ω)
  • Interface: Serial or parallel control options
  • Operating Current: ~25 mA (typical during playback/record)
  • Standby Current: <1 µA
  • Operating Temperature: 0°C to 70°C
  • Package: 28-pin SOIC (Small Outline Integrated Circuit)

Descriptions:

The ISD2540SY is a high-quality, single-chip solution for digital voice recording and playback. It eliminates the need for external memory by integrating analog storage directly on-chip. The device supports manual or microcontroller-based operation and provides high-fidelity audio output with low power consumption.

Features:

  • Single-Chip Solution: No external memory required
  • Direct Analog Storage: Maintains high-quality audio without compression
  • Multiple Operating Modes: Supports manual push-button or microprocessor control
  • Low Power Consumption: Ultra-low standby current
  • Edge/Level Triggering: Flexible control options
  • Automatic Power-Down: Reduces power usage when idle
  • Durable Storage: Retains data for over 100 years (typical)
  • On-Chip Oscillator: No external timing components needed

This device is commonly used in applications such as voice memos, toys, security systems, and industrial voice prompts.

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