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HomeProductsIntegrated Circuits (ICs)Memory24LC21-I/SN
24LC21-I/SN Image
Image may be representation.
See specifications for product details.

24LC21-I/SN - Microchip Technology

Manufacturer Part Number
24LC21-I/SN
Manufacturer
Microchip Technology
Allelco Part Number
32D-24LC21-I/SN
ECAD Model
Parts Description
IC EEPROM 1KBIT I2C 400KHZ 8SOIC
Detailed Description
Package
8-SOIC (0.154', 3.90mm Width)
Data sheet
Cylindrical Battery Holders.pdf
RoHs Status
ROHS3 Compliant
In stock: 88270

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Quantity

Specifications

24LC21-I/SN Tech Specifications
Microchip Technology - 24LC21-I/SN technical specifications, attributes, parameters and parts with similar specifications to Microchip Technology - 24LC21-I/SN

Product Attribute Attribute Value  
Manufacturer Microchip Technology  
Write Cycle Time - Word, Page 10ms  
Voltage - Supply 2.5V ~ 5.5V  
Technology EEPROM  
Supplier Device Package 8-SOIC  
Series -  
Package / Case 8-SOIC (0.154', 3.90mm Width)  
Package Tube  
Operating Temperature -40°C ~ 85°C (TA)  
Product Attribute Attribute Value  
Mounting Type Surface Mount  
Memory Type Non-Volatile  
Memory Size 1Kbit  
Memory Organization 128 x 8  
Memory Interface I²C  
Memory Format EEPROM  
Clock Frequency 400 kHz  
Base Product Number 24LC21  
Access Time 900 ns  

Parts Introduction

Manufacturer Part Number

24LC21-I/SN

Manufacturer

Microchip Technology

Introduction

EEPROM device for reliable data storage

Product Features and Performance

Non-volatile memory retains data without power

EEPROM Technology

1Kbit memory size

Organized as 128 x 8 (128 bytes of 8 bits)

I2C serial interface for communication

Up to 400 kHz clock frequency support

10 ms write cycle time for word or page

900 ns access time for fast data retrieval

Wide voltage supply range from 2.5V to 5.5V

Operational across a broad temperature range -40°C to 85°C

Product Advantages

Compatible with serial I2C bus for easy integration

Low-power consumption extends battery life for portable devices

High reliability and long data retention

Lead-free and RoHS compliant

Key Technical Parameters

Memory Type: EEPROM

Format: EEPROM

Size: 1Kbit

Organization: 128 x 8

Interface: I2C

Clock Frequency: 400 kHz

Write Cycle Time: 10 ms

Access Time: 900 ns

Voltage Supply: 2.5V to 5.5V

Operating Temperature: -40°C to 85°C

Mounting Type: Surface Mount

Package: 8-SOIC

Quality and Safety Features

Built-in write protection to prevent unintended data changes

Endurance of 1 million write cycles

Data retention of 100 years

ESD protection

Compatibility

I2C serial interface standard allows for use with countless microcontrollers and processors

Application Areas

Consumer electronics

Industrial automation

Automotive systems

Telecommunication equipment

Medical devices

Product Lifecycle

Active product status with no indication of nearing discontinuation

Long-term availability ensures replacement or upgrade options

Several Key Reasons to Choose This Product

Stable and reliable EEPROM technology for critical data retention

Versatility through wide operating voltage and temperature ranges

Easy integration with standard I2C interface

Suitable for various applications in diverse electronic segments

High endurance and data retention for long-term performance

Manufacturer's reputation for quality and support in semiconductor industry

Parts with Similar Specifications

The three parts on the right have similar specifications to Microchip Technology 24LC21-I/SN

Product Attribute 24LC21-I/SN 24LC16BT/ST 24LC16BT-E/SN 24LC16BT-I/SN
Part Number 24LC21-I/SN 24LC16BT/ST 24LC16BT-E/SN 24LC16BT-I/SN
Manufacturer Microchip Technology Microchip Technology Microchip Technology Microchip Technology
Memory Interface I²C I²C I²C I²C
Write Cycle Time - Word, Page 10ms 5ms 5ms 5ms
Voltage - Supply 2.5V ~ 5.5V 2.5V ~ 5.5V 2.5V ~ 5.5V 2.5V ~ 5.5V
Technology EEPROM EEPROM EEPROM EEPROM
Package Tube Tape & Reel (TR) Tape & Reel (TR) Tape & Reel (TR)
Memory Format EEPROM EEPROM EEPROM EEPROM
Package / Case 8-SOIC (0.154', 3.90mm Width) 8-TSSOP (0.173", 4.40mm Width) 8-SOIC (0.154', 3.90mm Width) 8-SOIC (0.154', 3.90mm Width)
Memory Size 1Kbit 16Kbit 16Kbit 16Kbit
Supplier Device Package 8-SOIC 8-TSSOP 8-SOIC 8-SOIC
Operating Temperature -40°C ~ 85°C (TA) 0°C ~ 70°C (TA) -40°C ~ 125°C (TA) -40°C ~ 85°C (TA)
Series - - - -
Memory Organization 128 x 8 2K x 8 2K x 8 2K x 8
Clock Frequency 400 kHz 400 kHz 400 kHz 400 kHz
Memory Type Non-Volatile Non-Volatile Non-Volatile Non-Volatile
Base Product Number 24LC21 24LC16B 24LC16B 24LC16B
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Access Time 900 ns 900 ns 900 ns 900 ns

24LC21-I/SN Datasheet PDF

Download 24LC21-I/SN pdf datasheets and Microchip Technology documentation for 24LC21-I/SN - Microchip Technology.

Datasheets
Cylindrical Battery Holders.pdf
PCN Packaging
2.73KHz.pdf
PCN Assembly/Origin
2.73KHz.pdf
PCN Design/Specification
PdCu Bond Wire Update 21/Sep/2015.pdf

Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

Your Faithful Supply Chain Partner -

Contact us if you have any questions.

  1. Phone
    +00852 9146 4856

Certifications & Memberships

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24LC21-I/SN Image

24LC21-I/SN

Microchip Technology
32D-24LC21-I/SN

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