25LC640AT-I/MS

Product Overview

Category: Integrated Circuits (ICs)

Use: Non-volatile Serial EEPROM Memory

Characteristics: - Low-power CMOS technology - 64Kbits of memory - SPI interface - 2.5V to 5.5V operating voltage range - 1 MHz clock rate - 128-byte page write buffer - Self-timed erase and write cycles - Write protect pin for hardware protection - 100-year data retention - Industrial temperature range (-40°C to +85°C) - Small form factor package

Package: MSOP-8

Essence: The 25LC640AT-I/MS is a non-volatile serial EEPROM memory chip that provides reliable data storage in various electronic devices.

Packaging/Quantity: The 25LC640AT-I/MS is available in tape and reel packaging, with 2500 units per reel.

Specifications

• Memory Size: 64 Kbits
• Interface Type: Serial Peripheral Interface (SPI)
• Operating Voltage Range: 2.5V to 5.5V
• Clock Rate: 1 MHz
• Write Protection: Hardware write protect pin
• Data Retention: 100 years
• Operating Temperature Range: -40°C to +85°C
• Package Type: MSOP-8

Detailed Pin Configuration

The 25LC640AT-I/MS has the following pin configuration:

| Pin Name | Function | |----------|----------| | VCC | Power supply voltage | | CS | Chip select input | | SCK | Serial clock input | | SI | Serial data input | | SO | Serial data output | | WP | Write protect input | | GND | Ground |

Functional Features

• Non-volatile memory: The 25LC640AT-I/MS retains data even when power is removed.
• SPI interface: Allows for easy communication with microcontrollers and other devices.
• Low-power consumption: Ideal for battery-powered applications.
• Self-timed erase and write cycles: Simplifies programming operations.
• Write protect pin: Provides hardware protection against accidental writes.
• Wide operating voltage range: Can be used in various electronic systems.

Advantages and Disadvantages

Advantages: - Reliable non-volatile memory storage - Easy integration with microcontrollers - Low power consumption - Small form factor package - Long data retention period

Disadvantages: - Limited memory size (64 Kbits) - Slower clock rate compared to some other EEPROMs

Working Principles

The 25LC640AT-I/MS utilizes a Serial Peripheral Interface (SPI) to communicate with the host device. It stores data in non-volatile memory cells, which retain information even when power is removed. The chip supports self-timed erase and write cycles, making it easy to program and update data. The write protect pin provides an additional layer of hardware protection against accidental writes.

Detailed Application Field Plans

The 25LC640AT-I/MS can be used in various applications, including but not limited to: - Consumer electronics - Industrial automation - Automotive systems - Medical devices - Smart meters - IoT devices

Detailed and Complete Alternative Models

Some alternative models to the 25LC640AT-I/MS include: - 25AA640A - 25LC1024 - 25LC256 - 25LC512

These alternative models offer different memory sizes, interfaces, and package options to suit specific application requirements.

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