ISD4004-12MEIR

Product Overview

Category: Integrated Circuit (IC)

Use: Audio Recording and Playback

Characteristics: - Non-volatile memory - Low power consumption - High-quality audio playback - Easy integration into electronic devices

Package: 28-pin PDIP (Plastic Dual In-line Package)

Essence: The ISD4004-12MEIR is a specialized IC designed for audio recording and playback applications. It offers non-volatile memory storage, allowing audio data to be stored even when power is removed.

Packaging/Quantity: The ISD4004-12MEIR is typically sold in reels or tubes containing multiple units.

Specifications

• Memory Capacity: 4 minutes of audio recording/playback
• Sampling Rate: 12 kHz
• Bit Resolution: 12 bits
• Operating Voltage: 2.4V - 5.5V
• Standby Current: 10 µA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The ISD4004-12MEIR has a total of 28 pins. Below is the detailed pin configuration:

1. VDD - Power Supply
2. VSS - Ground
3. XTI - Crystal Oscillator Input
4. XTO - Crystal Oscillator Output
5. /CE - Chip Enable
6. /OE - Output Enable
7. /WE - Write Enable
8. /RESET - Reset Input
9. /PD - Power Down Input
10. A0-A11 - Address Inputs
11. DQ0-DQ11 - Data Inputs/Outputs
12. /INT - Interrupt Output
13. /BUSY - Busy Output
14. /WP - Write Protect Input
15. NC - No Connection
16. NC - No Connection
17. NC - No Connection
18. NC - No Connection
19. NC - No Connection
20. NC - No Connection
21. NC - No Connection
22. NC - No Connection
23. NC - No Connection
24. NC - No Connection
25. NC - No Connection
26. NC - No Connection
27. NC - No Connection
28. NC - No Connection

Functional Features

• Audio Recording: The ISD4004-12MEIR allows users to record audio signals using an external microphone or line input.
• Audio Playback: It provides high-quality audio playback through an external speaker or headphone output.
• Non-volatile Memory: The recorded audio data is stored in non-volatile memory, ensuring data retention even when power is removed.
• Low Power Consumption: The IC operates on low power, making it suitable for battery-powered devices.
• Easy Integration: The ISD4004-12MEIR can be easily integrated into various electronic devices due to its compact size and simple interface.

Advantages and Disadvantages

Advantages: - Non-volatile memory ensures data retention - High-quality audio playback - Low power consumption - Easy integration into electronic devices

Disadvantages: - Limited recording capacity (4 minutes) - Relatively low sampling rate (12 kHz)

Working Principles

The ISD4004-12MEIR utilizes a combination of analog and digital circuitry to enable audio recording and playback. When recording, the analog audio signal is converted into digital format using an internal ADC (Analog-to-Digital Converter) and then stored in the non-volatile memory. During playback, the stored digital audio data is retrieved from memory and converted back into an analog signal using a DAC (Digital-to-Analog Converter), which is then amplified and outputted.

Detailed Application Field Plans

The ISD4004-12MEIR finds applications in various fields, including: 1. Voice Recorders: It can be used in portable voice recorders for capturing audio notes and memos. 2. Toys and Games: The IC can provide audio playback functionality in toys and games, enhancing the user experience. 3. Security Systems: It can be integrated into security systems to record and play back audio alerts or messages. 4. Medical Devices: The IC can be utilized in medical devices for recording and playing back patient instructions or reminders.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the ISD4004-12MEIR are: - ISD4004-08MPY - ISD4004-16MPY - ISD4004-20MPY

These models have different memory capacities and sampling rates, allowing users to choose the most suitable option based on their specific requirements.

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