25AA640A-I/S16K

Product Overview

Category

The 25AA640A-I/S16K belongs to the category of Serial EEPROM (Electrically Erasable Programmable Read-Only Memory) chips.

Use

It is used for non-volatile storage of data in various electronic devices, including consumer electronics, industrial equipment, and automotive applications.

Characteristics

• Non-volatile memory
• Low power consumption
• High reliability
• Small form factor
• Wide operating voltage range

Package

The 25AA640A-I/S16K is typically available in a small surface-mount package, such as SOIC (Small Outline Integrated Circuit) or DFN (Dual Flat No-leads).

Essence

The essence of this product lies in its ability to store data reliably in a compact and energy-efficient manner.

Packaging/Quantity

The 25AA640A-I/S16K is commonly supplied in tape and reel packaging, with quantities varying based on the manufacturer's specifications.

Specifications

• Memory Capacity: 64 kilobits (8 kilobytes)
• 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: 100 years

Detailed Pin Configuration

The 25AA640A-I/S16K typically features an 8-pin configuration, including pins for power supply, ground, SPI communication, and write protection.

Functional Features

• Byte and Page Write Modes
• Sequential Read Operation
• Software and Hardware Write Protection
• Status Register for Write In-Progress Monitoring
• Self-Timed Write Cycle

Advantages and Disadvantages

Advantages

• Low power consumption
• High reliability and endurance
• Compact form factor
• Wide operating voltage range

Disadvantages

• Limited storage capacity compared to larger EEPROM chips
• Slower write speeds compared to some other non-volatile memory technologies

Working Principles

The 25AA640A-I/S16K operates by using electrical signals to read from and write to specific memory locations within the chip. It utilizes the SPI interface for communication with the host device and employs internal circuitry to manage data storage and retrieval.

Detailed Application Field Plans

The 25AA640A-I/S16K is suitable for a wide range of applications, including: - Firmware storage in consumer electronics - Parameter storage in industrial control systems - Configuration data storage in automotive modules

Detailed and Complete Alternative Models

Some alternative models to the 25AA640A-I/S16K include: - 25LC640A from Microchip Technology - AT25080B from Atmel Corporation - M24M02 from STMicroelectronics

In conclusion, the 25AA640A-I/S16K is a versatile Serial EEPROM chip with a compact form factor, low power consumption, and high reliability, making it suitable for various embedded system applications.

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