ISD4004-08ME

Product Overview

Category: Integrated Circuit (IC)

Use: The ISD4004-08ME is a specialized IC designed for audio recording and playback applications. It offers high-quality digital audio storage and retrieval capabilities.

Characteristics: - Compact size - Low power consumption - Non-volatile memory - Easy integration with microcontrollers - High-quality audio playback

Package: The ISD4004-08ME is available in a standard 28-pin plastic dual inline package (PDIP).

Essence: This IC provides a reliable and efficient solution for audio recording and playback needs in various electronic devices.

Packaging/Quantity: The ISD4004-08ME is typically sold in reels or tubes, with quantities varying based on customer requirements.

Specifications

• Memory Capacity: 4 minutes of audio recording/playback time
• Sampling Rate: 8 kHz
• Bit Resolution: 8-bit
• Operating Voltage: 2.4V - 5.5V
• Standby Current: <1 µA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The ISD4004-08ME features a total of 28 pins, each serving a specific function. Here is the detailed pin configuration:

Pin 1: VDD (Power Supply) Pin 2: VSS (Ground) Pin 3: XTI (Crystal Oscillator Input) Pin 4: XTO (Crystal Oscillator Output) Pin 5: /CS (Chip Select) Pin 6: /WR (Write Enable) Pin 7: /RD (Read Enable) Pin 8: /RESET (Reset) Pin 9: A0 (Address Input) Pin 10: A1 (Address Input) Pin 11: A2 (Address Input) Pin 12: A3 (Address Input) Pin 13: A4 (Address Input) Pin 14: A5 (Address Input) Pin 15: A6 (Address Input) Pin 16: A7 (Address Input) Pin 17: /INT (Interrupt Output) Pin 18: D0 (Data I/O) Pin 19: D1 (Data I/O) Pin 20: D2 (Data I/O) Pin 21: D3 (Data I/O) Pin 22: D4 (Data I/O) Pin 23: D5 (Data I/O) Pin 24: D6 (Data I/O) Pin 25: D7 (Data I/O) Pin 26: /WP (Write Protect) Pin 27: /ACC (Access Enable) Pin 28: VDD (Power Supply)

Functional Features

The ISD4004-08ME offers the following functional features:

1. Audio Recording: The IC allows users to record audio signals with high fidelity and store them in its non-volatile memory.
2. Audio Playback: It enables the playback of recorded audio with excellent sound quality.
3. Addressable Memory: The IC provides addressable memory, allowing easy access to specific audio segments.
4. Low Power Consumption: With its low standby current, the IC ensures minimal power consumption during idle periods.
5. Integration Capability: The ISD4004-08ME can be easily integrated with microcontrollers and other electronic systems.

Advantages and Disadvantages

Advantages: - Compact size makes it suitable for space-constrained applications. - Non-volatile memory ensures data retention even during power loss. - Easy integration with microcontrollers simplifies system design. - High-quality audio playback enhances user experience.

Disadvantages: - Limited recording/playback time (4 minutes). - Lower bit resolution (8-bit) compared to higher-end audio ICs. - Requires an external crystal oscillator for proper operation.

Working Principles

The ISD4004-08ME utilizes a combination of analog and digital circuitry to record and playback audio. When recording, the IC converts analog audio signals into digital format using an 8-bit ADC (Analog-to-Digital Converter). The digital audio data is then stored in its non-volatile memory.

During playback, the IC retrieves the stored digital audio data from memory and converts it back into analog signals using an 8-bit DAC (Digital-to-Analog Converter). These analog signals are then amplified and output through the appropriate channels.

Application Field Plans

The ISD4004-08ME finds applications in various electronic devices that require audio recording and playback capabilities. Some potential application fields include:

1. Voice Recorders: Portable voice recorders benefit from the compact size and low power consumption of the IC.
2. Toys and Games: The IC can be used in toys and games to provide audio feedback or sound effects.
3. **Security