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24LC21A-I/SN - Microchip

Description: Microchip 24LC21A-I/SN EEPROM Memory, 1kb, 3500ns, 2.5 → 5.5 V 8-Pin SOIC

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PCB Footprints
24LC21A-I/SN - Microchip PCB footprint - Other - Other - SOIC127P600X175-8N-ren1
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24LC21A-I/SN Details

  • Manufacturer Part Number:

    24LC21A-I/SN

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOIC

  • Package Description:

    3.90 MM, ROHS COMPLIANT, 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:

    85 °C

  • Operating Temperature-Min:

    -40 °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

  • Screening Level:

    TS 16949

  • 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:

    INDUSTRIAL

  • 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

24LC21A-I/SN Frequently Asked Questions (FAQs)

  • The maximum clock frequency for the 24LC21A-I/SN is 400 kHz.
  • To ensure reliable data retention, the device should be powered within the recommended operating voltage range (2.5V to 5.5V) and the storage temperature should be within the recommended range (-40°C to 125°C).
  • Yes, the 24LC21A-I/SN has built-in noise filtering and is designed to operate in noisy environments. However, it's still recommended to follow proper PCB design and layout practices to minimize noise coupling.
  • To handle bus contention, use a bus arbiter or a multiplexer to ensure that only one device is driving the bus at a time. Additionally, use a pull-up resistor on the SCL and SDA lines to ensure proper signal levels.
  • The 24LC21A-I/SN has a minimum of 1 million write cycles, but this can vary depending on the specific application and usage.

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24LC21A-I/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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