23K640-I/ST Product Overview

Introduction

The 23K640-I/ST is a serial EEPROM (Electrically Erasable Programmable Read-Only Memory) device belonging to the Microchip Technology Inc.'s product line. This entry provides an in-depth overview of the 23K640-I/ST, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

Category

The 23K640-I/ST falls under the category of serial EEPROM devices, which are non-volatile memory chips used for storing small amounts of data that require frequent updates.

Use

It is commonly used in applications where low-power, non-volatile data storage is required, such as in consumer electronics, industrial control systems, and automotive applications.

Characteristics

• Low power consumption
• High reliability
• Small form factor
• Serial interface for easy integration

Package

The 23K640-I/ST is available in a standard 8-pin SOIC (Small Outline Integrated Circuit) package.

Essence

The essence of the 23K640-I/ST lies in its ability to provide reliable non-volatile data storage in a compact and energy-efficient form factor.

Packaging/Quantity

It is typically supplied in tape and reel packaging with a quantity of 2500 units per reel.

Specifications

• Memory Size: 64 kilobits (8 kilobytes)
• Interface: SPI (Serial Peripheral Interface)
• Operating Voltage: 2.5V - 5.5V
• Operating Temperature Range: -40°C to +85°C
• Write Endurance: 1,000,000 cycles
• Data Retention: 200 years

Detailed Pin Configuration

The 23K640-I/ST features the following pin configuration: 1. Chip Select (CS) 2. Serial Data Input/Output (SDI/O) 3. Serial Clock (SCK) 4. VSS (Ground) 5. Serial Data Output/Input (SDO/I) 6. Hold Input (HOLD) 7. Write Protect (WP) 8. Power Supply (VCC)

Functional Features

• Byte and Page Write Modes
• Sequential Read Operation
• Hardware Write Protection
• Self-timed Write Cycle

Advantages and Disadvantages

Advantages

• Low power consumption
• High reliability and endurance
• Compact form factor
• Easy integration with serial interface

Disadvantages

• Limited storage capacity compared to other memory technologies
• Slower write speeds compared to volatile memory

Working Principles

The 23K640-I/ST operates by utilizing the SPI interface to communicate with the host microcontroller or system. It employs a combination of floating gate transistors and control circuitry to store and retrieve data in a non-volatile manner.

Detailed Application Field Plans

The 23K640-I/ST is well-suited for various applications, including: - Data logging in portable consumer devices - Parameter storage in industrial control systems - Configuration storage in automotive electronics - Firmware storage in embedded systems

Detailed and Complete Alternative Models

Some alternative models to the 23K640-I/ST include: - 25AA640A-I/ST from Microchip Technology Inc. - AT24C64C-SSHM-T from Adesto Technologies

In conclusion, the 23K640-I/ST offers a reliable and efficient solution for non-volatile data storage in a wide range of applications, making it a valuable component in electronic design and development.

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