24LC21T-I/SN

Microchip Technology

IC EEPROM 1KBIT I2C 400KHZ 8SOIC

2100 Pcs New Original In Stock

EEPROM Memory IC 1Kbit I2C 400 kHz 900 ns 8-SOIC

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*Quantity
Minimum 1

4.9 / 5.0 - (502 Ratings)

24LC21T-I/SN

Name: Microchip Technology 24LC21T-I/SN
Brand: Microchip Technology
SKU: 24LC21TISN
Rating: 4.9 (502 reviews)

Product Overview

1405278

DiGi Electronics Part Number

24LC21T-I/SN-DG

Manufacturer

Microchip Technology

Manufacturer Product Number 24LC21T-I/SN

Description

IC EEPROM 1KBIT I2C 400KHZ 8SOIC

Inventory

2100 Pcs New Original In Stock

Detailed Description EEPROM Memory IC 1Kbit I2C 400 kHz 900 ns 8-SOIC

See all Memory

Datasheet 24LC21T-I/SN Datasheet

Quantity
Minimum 1

Purchase and inquiry

Quality Assurance & Returns

365 - Day Quality Guarantee - Every part fully backed.

90 - Day Refund or Exchange - Defective parts? No hassle.

Limited Stock, Order Now - Get reliable parts without worry.

Global Shipping & Secure Packaging

Worldwide Delivery in 3-5 Business Days

100% ESD Anti-Static Packaging

Real-Time Tracking for Every Order

Secure & Flexible Payment

Credit Card, VISA, MasterCard, PayPal, Western Union, Telegraphic Transfer(T/T) and more

All payments encrypted for security

RFQ (Request for Quotations)

Submit your RFQ directly on the product detail page or the RFQ page.

Our sales team will respond within 24 hours.

Payment method

PayPal (recommended for new customers)

Credit Cards

Wire Transfer (T/T) – Available in USD, EUR, HKD, and other currencies.

Important Notice

You’ll receive a confirmation email after submitting an RFQ.

Didn’t get it? Check your spam folder and whitelist [email protected].

Prices and stock may change; we’ll reconfirm your order.

Questions? Contact us anytime.

Freight

Basic cost: USD 70.00

Actual cost may vary depending on weight and destination

Shipping method

Shipped from Hong Kong via FedEx/DHL/UPS/TNT

Delivery Time

In-stock items: Ready to ship in 1-2 days

Transit time: 3-5 business days (FedEx/DHL/UPS)

Special requests? Contact us: [email protected]

Request Quote(Ships tomorrow)

Quantity
Minimum 1

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24LC21T-I/SN Technical Specifications

Datasheet & Documents

Datasheets

Download 24LC21T-I/SN Product Specification (PDF)

HTML Datasheet

24LC21T-I/SN-DG

Environmental & Export Classification

RoHS Status ROHS3 Compliant

Moisture Sensitivity Level (MSL) 1 (Unlimited)

REACH Status REACH Unaffected

ECCN EAR99

HTSUS 8542.32.0051

Additional Information

Other Names

24LC21T-I/SN-NDR

Standard Package

3,300

Alternative Models

PART NUMBER

MANUFACTURER

QUANTITY AVAILABLE

DiGi PART NUMBER

UNIT PRICE

SUBSTITUTE TYPE

AT24CS01-SSHM-T

Microchip Technology

7471

AT24CS01-SSHM-T-DG

0.2806

MFR Recommended

24LC01BT-E/SN

Microchip Technology

3200

24LC01BT-E/SN-DG

0.4101

MFR Recommended

24LC014T-I/SN

Microchip Technology

1900

24LC014T-I/SN-DG

0.1407

Parametric Equivalent

24AA01T-I/SN

Microchip Technology

18996

24AA01T-I/SN-DG

0.1673

MFR Recommended

24LC01BT-I/SN

Microchip Technology

16688

24LC01BT-I/SN-DG

0.8008

MFR Recommended

Reviews

4.9/5.0-(Show up to 5 Ratings)

바***야기

Dec 02, 2025

4.9

구매 후 제품이 예상보다 훨씬 오래가서 매우 만족스럽습니다.

悠***山

Dec 02, 2025

4.9

他們的專業和熱情，讓我成為長期的支持者。

Miroi***chanté

Dec 02, 2025

4.9

Leur réactivité après-vente m'a permis de continuer mon activité sans interruption.

Nuit***ique

Dec 02, 2025

4.9

Un fournisseur fiable, avec une livraison quasi immédiate et des produits de grande endurance.

Shimm***ngSoul

Dec 02, 2025

4.9

Browsing the website was a pleasant experience; it was well-organized and easy to locate different categories.

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Frequently Asked Questions (FAQ)

What are the key features of the 24LC21T-I/SN EEPROM memory chip?

The 24LC21T-I/SN is a 1Kbit EEPROM with I2C interface, operating at 400 kHz. It features non-volatile memory organized as 128 x 8, with a fast access time of 900 ns and a low power voltage range of 2.5V to 5.5V. It comes in an 8-SOIC package suitable for surface mount applications.

Is the 24LC21T-I/SN compatible with common microcontrollers and suitable for industrial applications?

Yes, the 24LC21T-I/SN uses the widely supported I2C interface, making it compatible with most microcontrollers. Its operating temperature range of -40°C to 85°C makes it ideal for industrial and embedded system environments.

What advantages does the 24LC21T-I/SN EEPROM offer compared to other memory devices?

This EEPROM provides reliable non-volatile storage with quick write cycles (10ms per page), low power consumption, and a compact surface-mount package. Its wide voltage range and robust temperature tolerance ensure performance in diverse conditions.

How do I program and write data to the 24LC21T-I/SN EEPROM chip?

Data is written via the I2C interface, with a typical write cycle time of 10ms per page. Properly managing the I2C communication protocol ensures successful programming, and no special verification process is required beyond standard I2C commands.

What should I know about the packaging and delivery of the 24LC21T-I/SN EEPROM for bulk purchase?

The chip is packaged in Tape & Reel (TR) format, suitable for automated assembly lines. It is stocked in large quantities (over 2000 pieces), ensuring quick delivery and reliable supply for your manufacturing needs.

DiGi Certification

24LC21T-I/SN CAD Models

Microchip Technology 24LC21T-I/SN PCB symbols & footprints

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