24LC21AT-I/SN

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24LC21AT-I/SN

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IC EEPROM 1KBIT I2C 400KHZ 8SOIC

  • FabricanteTecnologia Microchip

  • Peça do Fabricante #24LC21AT-I/SN

  • Em Estoque6204

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Especificações

Atributo Valor
Part Status Active
Digi Key Programmable Verified
Memory Type Non-Volatile
Memory Format EEPROM
Technology EEPROM
Memory Size 1Kbit
Memory Organization 128 x 8
Memory Interface I2C
Write Cycle Time - Word, Page 10ms
Voltage - Supply 2.5V ~ 5.5V
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SOIC
Base Product Number 24LC21
Clock Frequency 400 kHz
Access Time 900 ns

Visão Geral

Description

The 24LC21AT-I/SN is a specific variant of the 24LC21 series, which is a 2Kbit Electrically Erasable Programmable Read-Only Memory (EEPROM) produced by Microchip Technology. Designed for applications that require low power consumption and reliable non-volatile memory, this EEPROM is organized into 256 x 8-bit memory cells. It supports a two-wire I2C bus communication, which is useful in applications where pin count and space are critical.
Key features of the 24LC21AT-I/SN include its wide operating voltage range from 1.7V to 5.5V, making it suitable for various battery-operated devices. It also offers a maximum clock frequency of 400 kHz, allowing for fast data transfers. The EEPROM is available in an 8-lead SOIC package, which makes it easy to integrate into standard PCB layouts.
With a robust endurance of over 1 million erase/write cycles and data retention of more than 200 years, the 24LC21AT-I/SN is ideal for applications like consumer electronics, industrial controls, and automotive systems.

Equivalent

The 24LC21AT-I/SN is a 2Kb I2C Serial EEPROM from Microchip Technology. Equivalent products may include EEPROMs with similar capacities and specifications, such as the AT24C02 from Microchip Technologies, the M24C02 from STMicroelectronics, or the CAT24C02 from ON Semiconductor. Ensure to check the datasheets for compatibility in terms of voltage, package, and other electrical characteristics before selecting an equivalent.

Features

The 24LC21AT-I/SN is an EEPROM memory chip manufactured by Microchip Technology. It features a 2 Kbit (256 x 8) serial electrically erasable programmable read-only memory. Key features include:
1. I2C Interface: Utilizes a standard I2C bus for easy communication with microcontrollers.
2. Voltage Range: Operates within a wide voltage range of 1.7V to 5.5V.
3. Low Power Consumption: Designed for minimal power usage, which is ideal for battery-powered applications.
4. Data Retention: Offers a data retention capability of over 200 years and endurance of 1 million erase/write cycles.
5. Page Write Buffer: Includes an 8-byte page write buffer to enhance the speed of write operations.
6. Small Package: Available in a compact 8-pin SOIC package, making it suitable for space-constrained designs.
7. Temperature Range: Functions across an extended industrial temperature range, from -40°C to +85°C.
This EEPROM is well-suited for applications requiring reliable non-volatile memory with efficient power usage and robust communication capabilities in various environments.

Pinout

The 24LC21AT-I/SN is a 2Kbit (256 x 8) serial Electrically Erasable Programmable Read-Only Memory (EEPROM) from Microchip Technology. It features a two-wire I2C-compatible interface.
This device is housed in an 8-pin Small Outline Integrated Circuit (SOIC) package. The pin functions are as follows:
1. VSS: Ground reference.
2. SDA: Serial Data - the bidirectional data line for the I2C interface.
3. SCL: Serial Clock - the clock line for the I2C interface.
4. WP: Write Protect - enables or disables write protection.
5. A0: Device Address Input - used to select the device address.
6. A1: Device Address Input - used to select the device address.
7. A2: Device Address Input - used to select the device address.
8. VCC: Power Supply.
The 24LC21AT-I/SN is used for non-volatile storage applications and operates over a wide voltage range, making it suitable for various applications requiring data retention.

Manufacturer

The 24LC21AT-I/SN is manufactured by Microchip Technology Inc. Microchip is a leading American semiconductor company that designs, develops, and manufactures microcontrollers, memory, and analog semiconductors. They are known for providing a wide range of embedded control solutions and are a prominent player in the electronics industry, serving various sectors including automotive, industrial, consumer, aerospace, and telecommunications.

Application

The 24LC21AT-I/SN is a 2Kb Serial EEPROM, commonly used in applications requiring non-volatile memory storage. Key application areas include:
1. Consumer Electronics: Storing configuration settings and user preferences in devices like TVs and audio equipment.
2. Industrial Controls: Retaining critical data and system parameters in control systems and sensors.
3. Computers and Peripherals: Used in BIOS storage, calibration data, and device configurations.
4. Medical Devices: Holding calibration data and patient settings.
5. Automotive Systems: Storing diagnostic data, configuration settings, or user preferences.
6. Communication Equipment: Retaining network configurations and settings in routers and modems.
These applications leverage EEPROM's ability to retain data without power.

Package

The 24LC21AT-I/SN is packaged in an 8-lead SOIC (Small Outline Integrated Circuit) package, which is commonly used for surface-mount technology.

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