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24CW640-I/ST - Microchip

Description: EEPROM 64 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp

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24CW640-I/ST - Microchip PCB footprint - Small Outline Packages - Small Outline Packages - TSSOP 8
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24CW640-I/ST - Microchip  - 3D model - Small Outline Packages - TSSOP 8
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24CW640-I/ST Details

  • Manufacturer Part Number:

    24CW640-I/ST

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    TSSOP-8

  • Pin Count:

    8

  • Manufacturer Package Code:

    TSSOP-8

  • Country Of Origin:

    Thailand

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.32.00.51

  • Factory Lead Time:

    7 Weeks

  • Manufacturer:

    Microchip Technology Inc

  • YTEOL:

    18

  • Access Time-Max:

    450 ns

  • Additional Feature:

    DATA RETENTION TIME @ 55 DEGREE CENTIGRADE

  • Clock Frequency-Max (fCLK):

    1 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:

    4.4 mm

  • Memory Density:

    65536 bit

  • Memory IC Type:

    EEPROM

  • Memory Width:

    8

  • Number of Functions:

    1

  • Number of Ports:

    1

  • Number of Terminals:

    8

  • Number of Words:

    8192 words

  • Number of Words Code:

    8000

  • Operating Mode:

    SYNCHRONOUS

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Organization:

    8KX8

  • Output Characteristics:

    OPEN-DRAIN

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TSSOP

  • Package Equivalence Code:

    TSSOP8,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

  • Parallel/Serial:

    SERIAL

  • Programming Voltage:

    1.8 V

  • Screening Level:

    AEC-Q100

  • Seated Height-Max:

    1.2 mm

  • Serial Bus Type:

    I2C

  • Standby Current-Max:

    0.000001 A

  • Supply Current-Max:

    0.001 mA

  • Supply Voltage-Max (Vsup):

    5.5 V

  • Supply Voltage-Min (Vsup):

    1.6 V

  • Supply Voltage-Nom (Vsup):

    1.8 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

  • Width:

    3 mm

  • Write Cycle Time-Max (tWC):

    5 ms

  • Write Protection:

    SOFTWARE

24CW640-I/ST Frequently Asked Questions (FAQs)

  • The maximum clock frequency for the 24CW640-I/ST is 400 kHz, as specified in the datasheet. However, it's recommended to operate at a lower frequency (e.g., 100 kHz) to ensure reliable operation and minimize power consumption.
  • The 24CW640-I/ST uses a page-based write architecture. To perform a page write, send the page address, followed by the data to be written. For block erases, send the block address, and the device will erase the entire block. Refer to the datasheet for specific command sequences and timing diagrams.
  • The WP (Write Protect) pin is used to prevent accidental writes to the device. When WP is tied low, the device is in write-protect mode, and all write operations are inhibited. To enable writes, tie WP high or leave it floating. Note that WP has no effect on read operations.
  • The 24CW640-I/ST has a 64-Kbit (8K x 8) memory organization. The device is divided into 16 blocks, each consisting of 4 pages. Each page has 256 bytes. Refer to the datasheet for a detailed memory map and organization diagram.
  • The 24CW640-I/ST requires a power-on reset (POR) to ensure proper operation. The device requires a minimum of 1 ms of power-on time before the clock signal can be applied. Additionally, the device requires a minimum of 100 μs of power-up time before the first command can be sent.

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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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64 Kbit I2C Serial EEPROM with Software Write Protection, Industrial Temp