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24LC21/P The Microchip Technology 24LC21/P is a 1Kbit I2C serial EEPROM IC. It features a 400kHz clock frequency and operates within a 2.5V to 5.5V supply range.
Mfr Part #:

24LC21/P

Available from 1 distributors
Mfr Name: Microchip Technology
Microchip Technology
The Microchip Technology 24LC21/P is a 1Kbit I2C serial EEPROM IC. It features a 400kHz clock frequency and operates within a 2.5V to 5.5V supply range.
✓ Total Stock: 18,768 pcs
$ Price Range: $1.24

24LC21/P Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Smaxon Electronics ✓
Non-Authorised Inventory information
18,768 pcs
On Request
18768 pcs On Request 1 On Request On Request 2020+ On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

24LC21/P Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Access Time
Clock Frequency
Memory Format
Memory Interface
Memory Organization
Memory Size
Memory Type
Mounting Type
Operating Temperature
Supplier Device Package
Technology
Voltage
Write Cycle Time
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24LC21/P Description

Short technical summary and product information.

The Microchip Technology 24LC21/P is a 1Kbit Electrically Erasable PROM (EEPROM) designed for applications requiring serial data storage and transmission. This device utilizes a 2-wire serial interface bus compatible with I2C standards, operating at clock frequencies up to 400 kHz.

 

Key electrical characteristics include a supply voltage range of 2.5V to 5.5V, an access time of 900 ns, and a write cycle time of 10ms. The memory is organized as 128 x 8 bits, offering 1Kbit of non-volatile storage. It supports low-power operation with a typical active current of 1 mA and a standby current of 10 µA at 5.5V.

 

This EEPROM IC is housed in an 8-pin PDIP package, suitable for through-hole mounting. It operates within a commercial temperature range of 0°C to 70°C. The device ensures data integrity with 1,000,000 erase/write cycles and data retention exceeding 200 years.

 

The 24LC21/P is designed for applications needing to store and transmit configuration and control information, such as monitor identification through its DDC1/DDC2 interface compatibility.

24LC21/P Quick Information

Product Type: EEPROM IC
Canonical Name: Microchip Technology 24LC21/P 1Kbit I2C EEPROM
Subcategory: Serial EEPROM

24LC21/P Compliance

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

24LC21/P Estimated Pricing

Qty Low High
1+ $1.24 $1.24

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

24LC21/P Features

  • 1Kbit I2C serial EEPROM IC
  • 400 kHz clock frequency
  • 2.5V to 5.5V operating voltage
  • 900 ns access time
  • 8-PDIP through-hole package

24LC21/P Applications

  • Monitor identification
  • Configuration data storage
  • Control information transmission
  • Serial data logging

24LC21/P FAQs

7 frequently asked questions generated from this part’s specifications.
What is the supply voltage range for the 24LC21/P?

The supply voltage range is 2.5V to 5.5V.

What is the maximum clock frequency of the 24LC21/P?

The maximum clock frequency is 400 kHz.

What is the operating temperature range of this device?

The operating temperature range is 0°C to 70°C.

How is the 24LC21/P packaged?

It is supplied in an 8-DIP (0.300", 7.62mm) through-hole package with supplier device package 8-PDIP.

What is the memory organization of the 24LC21/P?

The memory is organized as 128 x 8 bits.

What is the data retention of this EEPROM?

Data retention is greater than 200 years.

How many erase/write cycles can the 24LC21/P endure?

It is rated for 1,000,000 erase/write cycles.

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