Encyclopedia Entry: 25AA160AT-I/SN

Product Information Overview

Category: Integrated Circuit (IC)

Use: Non-volatile Memory

Characteristics: - Serial EEPROM (Electrically Erasable Programmable Read-Only Memory) - Low-power consumption - High-speed performance - Small form factor - Reliable data retention - Easy integration into various electronic devices

Package: SOIC (Small Outline Integrated Circuit)

Essence: The 25AA160AT-I/SN is a serial EEPROM IC that provides non-volatile memory storage for electronic devices. It offers reliable data retention and high-speed performance while consuming minimal power.

Packaging/Quantity: The 25AA160AT-I/SN is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Memory Size: 16 kilobits (2 kilobytes)
• Interface: Serial Peripheral Interface (SPI)
• Operating Voltage: 1.8V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Write Endurance: 1 million cycles
• Data Retention: 200 years
• Package Type: SOIC-8

Detailed Pin Configuration

The 25AA160AT-I/SN has an 8-pin SOIC package with the following pin configuration:

1. Chip Select (/CS) - Used to enable/disable the device for communication.
2. Serial Clock (SCK) - Provides the clock signal for data transfer.
3. Serial Data Input (SI) - Receives data from the microcontroller.
4. Serial Data Output (SO) - Transmits data to the microcontroller.
5. Write Protect (/WP) - Allows write protection when connected to VCC or GND.
6. VCC - Power supply input (1.8V to 5.5V).
7. Ground (GND) - Common ground reference.
8. Hold (/HOLD) - Suspends serial communication during a read or write operation.

Functional Features

• Byte and Page Write Operations: Allows individual byte or page (up to 32 bytes) write operations for flexible data storage.
• Sequential Read: Supports sequential read operations, enabling efficient retrieval of stored data.
• Software Protection: Provides software protection by allowing the write protect pin (/WP) to be connected to VCC or GND.
• Hardware Protection: Supports hardware protection by using the write protect pin (/WP) in conjunction with the chip select pin (/CS).
• Self-Timed Erase/Write Cycle: Automatically manages erase/write cycles, simplifying the programming process.

Advantages and Disadvantages

Advantages: - Compact size and low power consumption make it suitable for portable electronic devices. - High-speed performance enables quick data access and transfer. - Reliable data retention ensures long-term storage of critical information. - Easy integration into various electronic systems due to its standard SPI interface.

Disadvantages: - Limited memory capacity (16 kilobits) compared to other non-volatile memory options. - Requires an external microcontroller or host device for communication and control.

Working Principles

The 25AA160AT-I/SN operates based on the principles of EEPROM technology. It utilizes a floating gate transistor structure to store and retrieve data. When writing data, an electric charge is applied to the floating gate, altering its electrical characteristics. This change in charge determines the stored data. During read operations, the charge state of the floating gate is measured, allowing the retrieval of the stored data.

Detailed Application Field Plans

The 25AA160AT-I/SN finds applications in various electronic devices that require non-volatile memory storage, such as: 1. Consumer Electronics: Smartphones, tablets, digital cameras, and portable media players. 2. Automotive Systems: Infotainment systems, instrument clusters, and electronic control units. 3. Industrial Equipment: Data loggers, measurement devices, and control systems. 4. Medical Devices: Patient monitoring systems, medical imaging equipment, and diagnostic devices.

Detailed and Complete Alternative Models

1. 25AA320A-I/SN: Similar to the 25AA160AT-I/SN but with a larger memory capacity of 32 kilobits (4 kilobytes).
2. 25LC256-I/SN: Offers a higher memory capacity of 256 kilobits (32 kilobytes) with similar characteristics and package type.
3. 24AA02E48-I/OT: Provides a smaller memory size of 2 kilobits (256 bytes) in a different package type (SOT-23).

These alternative models offer different memory capacities and package options, allowing users to choose the most suitable option for their specific requirements.

Word count: 625 words