24LC21AT-I/SN The Microchip Technology 24LC21AT-I/SN is a 1Kbit Serial EEPROM designed for data storage and serial transmission. It features an I2C interface and operates over a voltage range of 2.5V to 5.5V.
Mfr Part #:

24LC21AT-I/SN

Available from 2 distributors
Mfr Name: Microchip Technology
Microchip Technology
The Microchip Technology 24LC21AT-I/SN is a 1Kbit Serial EEPROM designed for data storage and serial transmission. It features an I2C interface and operates over a voltage range of 2.5V to 5.5V.
✓ Total Stock: 3,382 pcs
$ Price Range: $1.24

24LC21AT-I/SN Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
3,300 pcs
3300 pcs On Request 1 On Request On Request 13+ On Request On Request
Non-Authorised Inventory information
82 pcs
82 pcs On Request 1 On Request On Request 99+ On Request On Request

24LC21AT-I/SN Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Access Time
Clock Frequency
Lead Spacing
Lead Style
Memory Format
Memory Interface
Memory Organization
Memory Size
Memory Type
Mounting Type
Operating Temperature
Supplier Device Package
Technology
Voltage
Write Cycle Time

24LC21AT-I/SN Description

Short technical summary and product information.

The Microchip Technology 24LC21AT-I/SN is a 1Kbit dual-mode Electrically Erasable PROM (EEPROM) designed for applications requiring serial data storage and transmission. This device operates with a single supply voltage ranging from 2.5V to 5.5V and supports I2C compatible 2-wire serial interface bus communication.

 

Key electrical specifications include a clock frequency compatibility of 400 kHz, an access time of 900 ns, and a write cycle time of 10 ms. The memory is organized as 128 x 8 bits, providing 1Kbit of non-volatile storage. The device is built using low-power CMOS technology.

 

Packaged in an 8-pin SOIC, the 24LC21AT-I/SN is suitable for surface mount applications. It operates within an industrial temperature range of -40°C to 85°C. The device is RoHS3 compliant and has an MSL of 1.

24LC21AT-I/SN Quick Information

Product Type: EEPROM
Canonical Name: 24LC21AT-I/SN EEPROM
Subcategory: Serial EEPROM

24LC21AT-I/SN Compliance

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

24LC21AT-I/SN Estimated Pricing

Qty Low High
1+ $1.24 $1.24

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

24LC21AT-I/SN Features

  • 1Kbit serial EEPROM memory.
  • I2C compatible 2-wire interface.
  • Operates from 2.5V to 5.5V.
  • 400 kHz clock frequency compatibility.
  • Surface mount 8-SOIC package.

24LC21AT-I/SN Applications

  • Ideal for configuration data storage.
  • Suitable for serial control information.
  • Used in monitor identification systems.
  • Supports DDC1/DDC2 interfaces.

24LC21AT-I/SN FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range?

2.5V to 5.5V.

What is the memory size?

1 Kbit.

What is the interface type?

I²C.

What is the clock frequency?

400 kHz.

What is the operating temperature range?

-40°C to 85°C.

What is the package type?

8-SOIC (0.154", 3.90mm width).

What is the access time?

900 ns.

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