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Manufacturer Part #
AT28HC256-12JU-T
256K (32K x 8) High-speed Parallel EEPROM
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| Mfr. Name: | Microchip | ||||||||||
| Standard Pkg: | Product Variant Information section Available PackagingPackage Qty:750 per Std. Mfr. Pkg | ||||||||||
| Date Code: | |||||||||||
Microchip AT28HC256-12JU-T - Product Specification
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PCN Information:
*** Update for PCN 112961 ***Description of Change: Qualification of MMT as new final test site for selected AT27C040, AT27C080, AT27LV040A, AT28HC256, AT28HC256E, AT28C256, AT28BV256, AT28C256EF, AT27C010, AT28HC64BF, AT28BV64B, AT27BV256, AT27LV256A, AT28HC64B, AT27BV010, AT28C64B, AT27C256R, AT27LV010A, AT27LV020A, AT27C512R, AT27C020 and AT27LV512A device families available in 32L PLCC (11.5x14x3.37mm) package.Reason for Change: To improve manufacturability by qualifying MMT as a new final test site.Estimated First Ship Date: 12 October 2025 (date code: 2541)Revision History:April 30, 2025: Issued initial notification.September 18, 2025: Issued final notification. Attached the Qualification Report. Provided estimated first ship date to be on October 12, 2025.
*** Update for PCN 115312 ***Description of Change:Qualification of QMI519 as a new die attach material and CuPdAu as a new bond wire material for various products available in PLCC, QSOP, SOIC, SOIJ, SSOP, TSSOP, MQFP, TQFP, DFN, QFN, QFN-S, SQFN, TDFN, UDFN, UQFN, VDFN, VQFN, WQFN and TQFP packages assembled at MP3A, MTAI and MMT sites.Reason for Change:To improve manufacturability by qualifying QMI519 as a new die attach to standardize the use of PFAS free material and CuPdAu as a new bond wire material.Estimated First Ship Date:September 03, 2025 (date code: 2536)Revision History:July 22, 2025: Issued final notification.August 15, 2025: Re-issued the final notification to update the qualification report list, which now includes either a link to the qual report or an attached PDF file for each CCB. Updated the affected CPN list to removed EOL'ed CPNS: ATECC608A-MAHLG-T, ATECC608A-MAHVL-T, ATECC608A-MAHVM-T, ATECC508A-MAHPH-S, ATECC508A-MAHUW-T, ATECC608B MAH5O-T, ATECC508A-MAHKN-T, ATECC608B-MAHAF-S, ATECC508A-MAHKN-S, ATECC508A-MAH1A-T, ATECC608A-MAH4K-T, ATECC608A-MAH3P-T, ATECC608A MAH3Q-S, ATECC608A-MAH4W-T, ATECC608A-MAHAC-S, ATECC608A-MAHD3-S, ATECC608A-MAHGA-T, ATECC608A-MAHGX-T, ATECC508A-MAH2E-T, ATECC608A MAH2B-T, ATECC608A-MAH2G-S, ATECC608A-MAHT2-B, ATECC508A-MAH1C-S, ATECC508A-MAH1Q-S, ATECC508A-MAH1Q-T, ATECC608A-MAH1G-S, ATECC608A MAH1G-T, ATECC608A-MAH1K-S, ATECC508A-MAHWW-S, ATECC508A-MAHWW-T, ATECC608B-MAHAK-S, ATECC608B-MAHPA-T, ATECC608B-MAHSB-T, ATECC608B MAHSC-T, ATECC608A-MAH2U-T, ATECC608A-MAH2V-S, ATECC608A-MAH2X-S, ATECC608A-MAH2Y-S, ATECC608A-MAH3J-T and ATECC608A-MAH1W-T.September 18, 2025: Re-issued the final notification to add PFAS Elimination and Die Attach Explanation file and updated the affected CPN list to remove ATMEGA8535L-8JU, AT89LP6440-20JU, X34070T-H/ST, LX34050QPW-TR, LX3302AQPW-TR-EASY, LX3302AQPW-TR-C01, LX34311T-H/ST, LX34070AT-H/ST, LX34070-H/ST, LX34050QPW, LX3302AQPW-EASY, LX34070T-H/STVAO, LX3302AQPW-TR, LX34050QPW-TR-VAO, LX3302AQPW-TR-GM, LX34311T-H/STVAO, LX34070AT-H/STVAO, LX34070-H/STVAO, LX3302AQPW and LX34050QPW-VAO.
*****FPCN114582 UPDATE/MATERIAL CHANGEQualification of QMI519 as a new die attach material and CuPdAu as a new bond wire material for various products available in PLCC, QSOP, SOIC, SOIJ, SSOP, TSSOP, MQFP, TQFP, DFN, QFN, QFN-S, SQFN, TDFN, UDFN, UQFN, VDFN, VQFN, WQFN and TQFP packages assembled at MP3A, MTAI and MMT sites.*Re-issued the final notification to update the qualification report list, which now includes either a link to the qual report or an attached PDF file for each CCB. Updated the affected CPN list to removed EOL'ed CPNS: ATECC608A-MAHLG-T, ATECC608A-MAHVL-T, ATECC608AMAHVM-T, ATECC508A-MAHPH-S, ATECC508A-MAHUW-T, ATECC608B-MAH5O-T, ATECC508AMAHKN-T, ATECC608B-MAHAF-S, ATECC508A-MAHKN-S, ATECC508A-MAH1A-T, ATECC608AMAH4K-T, ATECC608A-MAH3P-T, ATECC608A-MAH3Q-S, ATECC608A-MAH4W-T, ATECC608AMAHAC-S, ATECC608A-MAHD3-S, ATECC608A-MAHGA-T, ATECC608A-MAHGX-T, ATECC508AMAH2E-T, ATECC608A-MAH2B-T, ATECC608A-MAH2G-S, ATECC608A-MAHT2-B, ATECC508AMAH1C-S, ATECC508A MAH1Q-S, ATECC508A-MAH1Q-T, ATECC608A-MAH1G-S, ATECC608AMAH1G-T, ATECC608A-MAH1K-S, ATECC508A-MAHWW-S, ATECC508A-MAHWW-T, ATECC608B-MAHAK-S, ATECC608B-MAHPA-T, ATECC608B-MAHSB-T, ATECC608B-MAHSC-T,ATECC608A MAH2U-T, ATECC608A-MAH2V-S, ATECC608A-MAH2X-S, ATECC608A-MAH2Y-S, ATECC608A-MAH3J-T and ATECC608A-MAH1W-T.
Description of Change:Qualification of QMI519 as a new die attach material and CuPdAu as a new bond wire material for various products available in PLCC, QSOP, SOIC, SOIJ, SSOP, TSSOP, MQFP, TQFP, DFN, QFN, QFN-S, SQFN, TDFN, UDFN, UQFN, VDFN, VQFN, WQFN and TQFP packages assembled at MP3A, MTAI and MMT sites.Reason for Change:To improve manufacturability by qualifying QMI519 as a new die attach to standardize the use of PFAS free material and CuPdAu as a new bond wire material.September 03, 2025 (date code: 2536)
Description of Change: Qualification of MMT as new final test site for selected AT27C040, AT27C080, AT27LV040A, AT28HC256, AT28HC256E, AT28C256, AT28BV256, AT28C256EF, AT27C010, AT28HC64BF, AT28BV64B, AT27BV256, AT27LV256A, AT28HC64B, AT27BV010, AT28C64B, AT27C256R, AT27LV010A, AT27LV020A, AT27C512R, AT27C020 and AT27LV512A device families available in 32L PLCC (11.5x14x3.37mm) package.Reason for Change: To improve manufacturability by qualifying MMT as a new final test site.Estimated Qualification Completion Date: June 2025
***FPCN104919 Update ***Revision History:April 16, 2024: Issued final notification.May 08, 2024: Re-issued final notification. Updated pre and post change summary table to include package type and package width.Description of Change:Implement new carrier tape leader and trailer length for various packages shipped from MPHL site.Reason for Change:To improve manufacturability by standardizing the carrier tape and trailer length for various packages shipped from MPHL site.
Microchip has released a new Datasheet for the AT28HC256 - 256-Kbit (32,768 x 8) Industrial High-Speed Parallel EEPROM of devices. If you are using one of these devices please read the document located at AT28HC256 - 256-Kbit (32,768 x 8) Industrial High-Speed Parallel EEPROM.Notification Status: FinalDescription of Change: Removed 28-Lead TSOP package. Updated 32-Lead PLCC package drawing to latest revision (no change to form, fit or function).Impacts to Data Sheet: See above detailsReason for Change: To improve productivityChange Implementation Status: CompleteDate Document Changes Effective: 08 Aug 2023NOTE: Please be advised that this is a change to the document only the product has not been changed.Markings to Distinguish Revised from Unrevised Devices: N/A
Part Status:
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Available Packaging
Package Qty:
750 per Std. Mfr. Pkg