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24LC21AT/SN Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
24LC21AT/SNMICFOHIP3300Yes

24LC21AT/SN** is a serial EEPROM memory device manufactured by **Microchip Technology**.

The 24LC21AT/SN is a serial EEPROM memory device manufactured by Microchip Technology. Below are its key specifications, descriptions, and features:

Specifications:

  • Memory Size: 2 Kbit (256 x 8 bits)
  • Interface: I²C (2-wire serial interface)
  • Supply Voltage: 1.7V to 5.5V
  • Operating Temperature Range: -40°C to +85°C
  • Write Cycle Endurance: 1,000,000 cycles
  • Data Retention: 200 years
  • Package Type: 8-lead SOIC (SN)
  • Page Write Buffer: 16 bytes
  • Clock Frequency: Up to 400 kHz (I²C Fast mode)
  • Write Protect Feature: Hardware protection for partial/full array

Descriptions:

  • The 24LC21AT/SN is a low-power, byte-addressable EEPROM with I²C interface.
  • It supports both random and sequential read operations.
  • Features a built-in write-protect pin (WP) to prevent accidental writes.
  • Designed for industrial and consumer applications requiring reliable non-volatile memory.

Features:

  • Low Power Consumption: Ideal for battery-powered applications.
  • Wide Voltage Range: Operates from 1.7V to 5.5V.
  • Schmitt Trigger Inputs: Improved noise immunity.
  • Self-Timed Write Cycle: No external components needed.
  • ESD Protection: >4,000V (Human Body Model).

This device is commonly used in embedded systems, IoT devices, and other applications requiring small, reliable non-volatile memory.

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