ISD25120P

Product Overview

Category: Integrated Circuit (IC)

Use: The ISD25120P is a programmable voice and audio playback IC. It is commonly used in applications that require voice recording and playback capabilities.

Characteristics: - Programmable voice and audio playback - Low power consumption - Compact size - Easy integration into electronic devices

Package: The ISD25120P is available in a 28-pin DIP (Dual Inline Package) or SOIC (Small Outline Integrated Circuit) package.

Essence: The essence of the ISD25120P lies in its ability to store and play back recorded voice and audio messages.

Packaging/Quantity: The ISD25120P is typically sold in reels containing a quantity of 250 units per reel.

Specifications

• Supply Voltage: 2.4V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Maximum Recording Time: 120 seconds
• Sampling Frequency: 8 kHz
• Audio Output: PWM (Pulse Width Modulation)
• Memory Type: Non-volatile Flash

Detailed Pin Configuration

The ISD25120P has a total of 28 pins, each serving a specific function. Here is a detailed pin configuration:

1. VDD - Power supply voltage input
2. VSS - Ground reference
3. XTI - Crystal oscillator input
4. XTO - Crystal oscillator output
5. /CS - Chip select input
6. /WR - Write enable input
7. /RD - Read enable input
8. /RESET - Reset input
9. /INT - Interrupt output
10. /PD - Power-down input
11. /WP - Write protect input
12. A0-A15 - Address inputs
13. DQ0-DQ7 - Data inputs/outputs
14. /BUSY - Busy output
15. /VPP - Programming voltage input
16. NC - No connection

Functional Features

• Voice Recording: The ISD25120P allows users to record voice messages of up to 120 seconds in duration.
• Audio Playback: Recorded messages can be played back with high-quality audio output.
• Non-volatile Memory: The IC features non-volatile flash memory, ensuring that recorded messages are retained even when power is disconnected.
• Low Power Consumption: The ISD25120P is designed to operate efficiently with low power consumption, making it suitable for battery-powered devices.
• Easy Integration: The IC can be easily integrated into various electronic devices due to its compact size and simple interface.

Advantages and Disadvantages

Advantages: - High-quality audio playback - Compact size for easy integration - Non-volatile memory ensures data retention - Low power consumption

Disadvantages: - Limited recording time (up to 120 seconds) - Requires an external crystal oscillator for proper operation

Working Principles

The ISD25120P utilizes a combination of analog and digital circuitry to enable voice recording and playback. When a voice message is recorded, the IC converts the analog audio signal into a digital format and stores it in its non-volatile flash memory. During playback, the stored digital data is converted back into an analog audio signal, which is then amplified and output through the PWM audio output pin.

Detailed Application Field Plans

The ISD25120P finds applications in various fields, including: 1. Voice recorders 2. Toys and games 3. Security systems 4. Medical devices 5. Automotive electronics

Detailed and Complete Alternative Models

1. ISD25120P - 120 seconds recording time, 8 kHz sampling frequency
2. ISD25120A - 120 seconds recording time, 16 kHz sampling frequency
3. ISD25120B - 120 seconds recording time, 32 kHz sampling frequency
4. ISD25256P - 256 seconds recording time, 8 kHz sampling frequency
5. ISD25256A - 256 seconds recording time, 16 kHz sampling frequency

These alternative models offer different recording times and sampling frequencies to cater to specific application requirements.

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