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AT28HC256-12TU - Microchip

Description: EEPROM Memory IC 256Kb (32K x 8) Parallel 120ns 28-TSOP

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AT28HC256-12TU - Microchip PCB footprint - Small Outline Packages - Small Outline Packages - 28T-TSOP
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AT28HC256-12TU Details

  • Manufacturer Part Number:

    AT28HC256-12TU

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Pin Count:

    28

  • Manufacturer Package Code:

    TSOP-28

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.32.00.51

  • Manufacturer:

    Microchip Technology Inc

  • YTEOL:

    0

  • Access Time-Max:

    120 ns

  • Additional Feature:

    AUTOMATIC WRITE

  • Command User Interface:

    NO

  • Data Polling:

    YES

  • Endurance:

    10000 Write/Erase Cycles

  • JESD-30 Code:

    R-PDSO-G28

  • JESD-609 Code:

    e3

  • Length:

    11.8 mm

  • Memory Density:

    262144 bit

  • Memory IC Type:

    EEPROM

  • Memory Width:

    8

  • Moisture Sensitivity Level:

    3

  • Number of Functions:

    1

  • Number of Terminals:

    28

  • Number of Words:

    32768 words

  • Number of Words Code:

    32000

  • Operating Mode:

    ASYNCHRONOUS

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Organization:

    32KX8

  • Output Characteristics:

    3-STATE

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TSOP1

  • Package Equivalence Code:

    TSSOP28,.53,22

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, THIN PROFILE

  • Page Size:

    64 words

  • Parallel/Serial:

    PARALLEL

  • Programming Voltage:

    5 V

  • Qualification Status:

    Not Qualified

  • Screening Level:

    MIL-STD-883

  • Seated Height-Max:

    1.2 mm

  • Standby Current-Max:

    0.0003 A

  • Supply Current-Max:

    0.08 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

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.55 mm

  • Terminal Position:

    DUAL

  • Toggle Bit:

    YES

  • Width:

    8 mm

  • Write Cycle Time-Max (tWC):

    10 ms

AT28HC256-12TU Frequently Asked Questions (FAQs)

  • The maximum operating temperature range for the AT28HC256-12TU is -40°C to +125°C.
  • Page writes and block erases should be handled using the specific command sequences outlined in the datasheet. It's essential to follow the recommended programming algorithm to avoid data corruption or device damage.
  • The recommended power-up sequence is to apply VCC before applying any signals to the device. During power-down, the device should be deselected (CE high) before VCC is removed.
  • To ensure data retention during power-down, the device should be deselected (CE high) and the VCC supply should be reduced to 0V or a voltage below the minimum operating voltage (VCC(min)) specified in the datasheet.
  • The maximum number of erase cycles for the AT28HC256-12TU is 100,000 cycles per sector.

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AT28HC256-12TU 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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For a full list of alternate parts for AT28HC256-12TU, check out Findchips.com