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25AA256-E/ST - Microchip

Description: EEPROM 256k, 32K X 8, 1.8V SER EE EXT

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PCB Footprints
25AA256-E/ST - Microchip PCB footprint - Small Outline Packages - Small Outline Packages - 8-Lead Plastic Thin Shrink Small Outline (ST) - 4.4 mm Body [TSSOP]
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3D Models
25AA256-E/ST - Microchip  - 3D model - Small Outline Packages - 8-Lead Plastic Thin Shrink Small Outline (ST) - 4.4 mm Body [TSSOP]
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25AA256-E/ST Details

  • Manufacturer Part Number:

    25AA256-E/ST

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    TSSOP

  • Package Description:

    TSSOP-8

  • Pin Count:

    8

  • Manufacturer Package Code:

    TSSOP-8

  • Country Of Origin:

    Philippines, Thailand

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.32.00.51

  • Factory Lead Time:

    5 Weeks

  • Manufacturer:

    Microchip Technology Inc

  • YTEOL:

    14

  • Additional Feature:

    OPERATES WITH 1.8VMIN @ 3MHZ

  • Clock Frequency-Max (fCLK):

    10 MHz

  • Data Retention Time-Min:

    200

  • Endurance:

    1000000 Write/Erase Cycles

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e3

  • Length:

    4.4 mm

  • Memory Density:

    262144 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:

    32768 words

  • Number of Words Code:

    32000

  • Operating Mode:

    SYNCHRONOUS

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Organization:

    32KX8

  • Output Characteristics:

    3-STATE

  • 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

  • Peak Reflow Temperature (Cel):

    260

  • Programming Voltage:

    2.5 V

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.2 mm

  • Serial Bus Type:

    SPI

  • Standby Current-Max:

    0.000005 A

  • Supply Current-Max:

    0.005 mA

  • Supply Voltage-Max (Vsup):

    5.5 V

  • Supply Voltage-Min (Vsup):

    1.8 V

  • Supply Voltage-Nom (Vsup):

    2.5 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

  • Time@Peak Reflow Temperature-Max (s):

    40

  • Width:

    3 mm

  • Write Cycle Time-Max (tWC):

    5 ms

  • Write Protection:

    HARDWARE/SOFTWARE

25AA256-E/ST Frequently Asked Questions (FAQs)

  • The 25AA256-E/ST has a minimum of 1 million write cycles, but the actual number of write cycles may vary depending on the usage and operating conditions.
  • To handle page write buffer underrun errors, ensure that the page write buffer is fully loaded before initiating a write cycle. Also, use the Status Register to monitor the write cycle status and detect any errors.
  • A simple RC circuit with a 10kΩ resistor and a 10μF capacitor is recommended for power-on reset. This ensures that the device is properly reset during power-up.
  • The 25AA256-E/ST is rated for operation up to 125°C. However, it's essential to consider the device's reliability and data retention at high temperatures. Consult the datasheet and application notes for more information.
  • To securely erase the 25AA256-E/ST, use the Chip Erase command (0x10) followed by a series of write cycles to overwrite the entire memory space. Consult the datasheet and application notes for more information.

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25AA256-E/ST 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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Part Image 25AA256-I/ST Microchip Technology Inc

256K, 32K X 8, 1.8V SER EE

Part Image 25AA256T-E/ST Microchip Technology Inc

EEPROM, 32KX8, Serial, CMOS, PDSO8