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24LC21T/SN The Microchip Technology 24LC21T/SN is a 1Kbit EEPROM memory IC with an I2C interface. It operates from a 2.5V to 5.5V supply.
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24LC21T/SN

Available from 1 distributors
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The Microchip Technology 24LC21T/SN is a 1Kbit EEPROM memory IC with an I2C interface. It operates from a 2.5V to 5.5V supply.
✓ Total Stock: 6,551 pcs
$ Price Range: $1.28

24LC21T/SN Available from 1 distributor

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✓ Non-Authorised
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6,551 pcs
On Request
6551 pcs On Request 1 On Request On Request 00+ On Request On Request
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24LC21T/SN Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Access Time
Clock Frequency
Interface
Lead Spacing
Lead Style
Memory Organization
Memory Size
Memory Type
Mounting Type
Operating Temperature
SVHC Present
Supplier Package
Tape & Reel
Voltage Supply
Write Cycle Time
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24LC21T/SN Description

Short technical summary and product information.

The Microchip Technology 24LC21T/SN is a 1Kbit Electrically Erasable PROM (EEPROM) designed for applications requiring serial transmission of configuration and control information. It features a 128 x 8 bit memory organization and utilizes a 2-wire serial interface bus compatible with I2C standards.

 

This device supports a clock frequency of up to 400 kHz and has an access time of 900 ns. It operates within a supply voltage range of 2.5V to 5.5V and is suitable for commercial temperature ranges from 0°C to 70°C. The EEPROM offers a page-write buffer for up to 8 bytes and ensures data retention for over 200 years with 1,000,000 erase/write cycles.

 

Available in an 8-pin SOIC package, the 24LC21T/SN is designed for surface mount applications. It operates in both transmit-only and bidirectional modes, with the bidirectional mode enabling byte-selectable read/write capabilities upon a valid high-to-low transition on the SCL pin.

24LC21T/SN Quick Information

Product Type: EEPROM Memory IC
Series: 24LC21
Canonical Name: Microchip Technology 24LC21 EEPROM Memory IC
Subcategory: Memory IC

24LC21T/SN Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

24LC21T/SN Estimated Pricing

Qty Low High
1+ $1.28 $1.28

Estimated market price range - modelled values for guidance only, not live distributor offers.

24LC21T/SN Features

  • 1Kbit EEPROM memory size
  • I2C compatible serial interface
  • 400 kHz maximum clock frequency
  • 2.5V to 5.5V operating voltage
  • 8-SOIC surface mount package

24LC21T/SN Applications

  • Implements DDC1/DDC2 monitor identification interface.
  • Stores configuration and control information.
  • Supports transmit-only and bidirectional modes.
  • Used for serial transmission of configuration data.

24LC21T/SN FAQs

7 frequently asked questions generated from this part’s specifications.
What is the memory size of the 24LC21T/SN?

The 24LC21T/SN has a memory size of 1 kbit.

What interface does the 24LC21T/SN use?

The 24LC21T/SN uses an I2C interface.

What is the operating voltage range for the 24LC21T/SN?

The 24LC21T/SN operates from 2.5V to 5.5V.

What is the operating temperature range for the 24LC21T/SN?

The 24LC21T/SN operates from 0°C to 70°C.

What package type is the 24LC21T/SN available in?

The 24LC21T/SN is available in an 8-SOIC package for surface mounting.

What is the data retention period for the 24LC21T/SN?

The 24LC21T/SN has a data retention period of over 200 years.

How many erase/write cycles are guaranteed for the 24LC21T/SN?

The 24LC21T/SN is guaranteed for 1,000,000 erase/write cycles.

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