25AA040T/SN Encyclopedia Entry

Product Overview

The 25AA040T/SN is a serial electrically erasable programmable read-only memory (EEPROM) device. It falls under the category of non-volatile memory and is commonly used for storing small amounts of data in various electronic devices. The 25AA040T/SN is known for its high reliability, low power consumption, and compact package.

Basic Information

• Category: Non-volatile Memory
• Use: Storing small amounts of data in electronic devices
• Characteristics: High reliability, low power consumption
• Package: 8-pin SOIC (Small Outline Integrated Circuit)
• Essence: Reliable data storage
• Packaging/Quantity: Typically available in reels of 2500 units

Specifications

• Memory Size: 4 Kbits
• Interface: SPI (Serial Peripheral Interface)
• Operating Voltage: 1.8V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Write Endurance: 1,000,000 cycles
• Data Retention: 200 years

Detailed Pin Configuration

1. Chip Select (/CS)
2. Serial Data Input/Output (SI/SO)
3. Serial Clock (SCK)
4. Write Protect (/WP)
5. Ground (GND)
6. No Connection (NC)
7. No Connection (NC)
8. Power Supply (VCC)

Functional Features

• Byte and Page Write Modes
• Self-timed Write Cycle
• Enhanced ESD Protection
• Sequential Read Operation
• Status Register for Write In-Progress

Advantages and Disadvantages

Advantages

• Low power consumption
• High reliability
• Compact package size
• Wide operating voltage range

Disadvantages

• Limited storage capacity
• Slower write speeds compared to other memory types

Working Principles

The 25AA040T/SN operates by using the SPI interface to communicate with a microcontroller or other host device. When data needs to be stored or retrieved, the device follows a specific protocol outlined in its datasheet to ensure accurate and reliable data transfer.

Detailed Application Field Plans

The 25AA040T/SN is commonly used in applications such as: - Embedded systems - Consumer electronics - Industrial control systems - Automotive electronics

Detailed and Complete Alternative Models

• 25LC040A
• 24AA04
• AT25010A

In conclusion, the 25AA040T/SN is a reliable and versatile EEPROM device suitable for a wide range of electronic applications. Its compact package, low power consumption, and high reliability make it a popular choice for designers looking to incorporate non-volatile memory into their products.

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