ISD4002-120E

Product Overview

Category

ISD4002-120E belongs to the category of integrated circuits (ICs).

Use

The ISD4002-120E is primarily used for audio recording and playback applications.

Characteristics

• High-quality audio recording and playback capabilities
• Low power consumption
• Compact size
• Easy integration into electronic devices

Package

The ISD4002-120E comes in a standard 28-pin DIP (Dual Inline Package) format.

Essence

The essence of the ISD4002-120E lies in its ability to provide reliable and efficient audio recording and playback functionality.

Packaging/Quantity

The ISD4002-120E is typically packaged in reels or tubes, with quantities varying based on customer requirements.

Specifications

• Maximum Recording Time: 120 seconds
• Sampling Frequency: 8 kHz
• Operating Voltage: 2.4V - 5.5V
• Standby Current: 10 µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The ISD4002-120E has a total of 28 pins, each serving a specific function. Here is a detailed pin configuration:

1. VDD - Power supply voltage
2. VSS - Ground reference
3. CE1 - Chip enable input
4. CE2 - Chip enable input
5. WE - Write enable input
6. OE - Output enable input
7. RESET - Reset input
8. XTI - Crystal oscillator input
9. XTO - Crystal oscillator output
10. NC - No connection
11. A0-A10 - Address inputs
12. DQ0-DQ7 - Data inputs/outputs
13. DQ8-DQ15 - Data inputs/outputs
14. VCAP - External capacitor connection
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

• High-quality audio recording and playback with low noise
• Non-volatile storage of recorded audio data
• Simple control interface for easy integration into electronic systems
• Flexible addressing scheme for efficient data retrieval
• On-chip oscillator for accurate timing

Advantages and Disadvantages

Advantages

• Compact size allows for easy integration into various devices
• Low power consumption ensures extended battery life
• High-quality audio recording and playback capabilities provide excellent sound reproduction
• Non-volatile storage preserves recorded audio even when power is disconnected

Disadvantages

• Limited maximum recording time (120 seconds)
• Sampling frequency limited to 8 kHz, which may not meet the requirements of some applications
• Lack of built-in audio processing features, requiring external circuitry for advanced audio manipulation

Working Principles

The ISD4002-120E utilizes flash memory technology to store audio data. When recording, analog audio signals are converted into digital format and stored in the internal memory. During playback, the stored digital data is converted back into analog signals for audio output.

The chip's control interface allows users to initiate recording or playback operations by sending appropriate commands. The address inputs facilitate access to specific sections of the memory, enabling selective playback of recorded audio segments.

Detailed Application Field Plans

The ISD4002-120E finds application in various fields, including:

1. Voice recorders
2. Message playback systems
3. Toys and games with audio features
4. Security systems with voice prompts
5. Industrial equipment with audio feedback

Detailed and Complete Alternative Models

• ISD4002-90E: Similar to ISD4002-120E but with a maximum recording time of 90 seconds.
• ISD4002-60E: Similar to ISD4002-120E but with a maximum recording time of 60 seconds.
• ISD4002-30E: Similar to ISD4002-120E but with a maximum recording time of 30 seconds.

These alternative models offer different recording time options to suit specific application requirements.

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