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24LC21AT/SN - Microchip

Description: EEPROM 2.5V Dual Mode

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24LC21AT/SN - Microchip PCB footprint - Small Outline Packages - Small Outline Packages - 8-Lead Plastic Small Outline (SN) - Narrow, 3.90 mm (.150 In.) Body [SOIC]
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24LC21AT/SN Details

  • Manufacturer Part Number:

    24LC21AT/SN

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOIC

  • Package Description:

    0.150 INCH, PLASTIC, SOIC-8

  • Pin Count:

    8

  • Manufacturer Package Code:

    SOIC-8

  • Country Of Origin:

    Taiwan, Thailand

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.32.00.51

  • Factory Lead Time:

    6 Weeks

  • Manufacturer:

    Microchip Technology Inc

  • YTEOL:

    8

  • Additional Feature:

    2.5V TO 5.5V @ 0.1MHz

  • Clock Frequency-Max (fCLK):

    0.4 MHz

  • Data Retention Time-Min:

    200

  • Endurance:

    1000000 Write/Erase Cycles

  • I2C Control Byte:

    1010000R

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e3

  • Length:

    4.9 mm

  • Memory Density:

    1024 bit

  • Memory IC Type:

    EEPROM

  • Memory Width:

    8

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Ports:

    1

  • Number of Terminals:

    8

  • Number of Words:

    128 words

  • Number of Words Code:

    128

  • Operating Mode:

    SYNCHRONOUS

  • Operating Temperature-Max:

    70 °C

  • Organization:

    128X8

  • Output Characteristics:

    OPEN-DRAIN

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP8,.23

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Parallel/Serial:

    SERIAL

  • Peak Reflow Temperature (Cel):

    260

  • Programming Voltage:

    5 V

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.75 mm

  • Serial Bus Type:

    I2C

  • Standby Current-Max:

    0.0001 A

  • Supply Current-Max:

    0.003 mA

  • Supply Voltage-Max (Vsup):

    5.5 V

  • Supply Voltage-Min (Vsup):

    4.5 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    COMMERCIAL

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

  • Width:

    3.9 mm

  • Write Cycle Time-Max (tWC):

    10 ms

24LC21AT/SN Frequently Asked Questions (FAQs)

  • The 24LC21AT/SN has a minimum of 1 million write cycles, but this can vary depending on the operating conditions and usage patterns.
  • To ensure data integrity, it is recommended to use a voltage supervisor or a power-on reset circuit to prevent the device from operating during power-up or power-down. Additionally, the device has built-in power-on reset and brown-out detection to prevent data corruption.
  • The recommended operating voltage range for the 24LC21AT/SN is 2.5V to 5.5V, with a typical operating voltage of 3.3V or 5V.
  • The 24LC21AT/SN uses a page write mode, where data is written in pages of 8 bytes. For block writes, the device can be written in blocks of 32 bytes. It is recommended to use the page write mode for most applications, and block write mode for larger data transfers.
  • The WP (Write Protect) pin is used to prevent accidental writes to the device. When the WP pin is tied to VCC, the device is in write-protect mode, and no writes are allowed. When the WP pin is tied to GND, the device is in normal operation mode.

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24LC21AT/SN Overview

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About Microchip

Microchip Technology Inc. is a leading manufacturer of microcontrollers and semiconductor devices for a wide range of applications in the aerospace, automotive, consumer electronics, industrial, and medical industries. Alongside a comprehensive product portfolio, Microchip Technology Inc. also provides easy-to-use development tools that enable engineers to create optimal designs quickly with minimal iterations to reduce risk while lowering total system costs to market. Headquartered in Chandler, Arizona, th

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