Orders shipping outside of United States will be on hold while the company evaluates tariff impacts.
Please contact your salesperson for assistance.
Manufacturer Part #
ATMEGA644PA-AN
ATmega Series 64 KB Flash 4 KB SRAM 20 MHz 8-Bit Microcontroller - TQFP-44
| | |||||||||||
| | |||||||||||
| Mfr. Name: | Microchip | ||||||||||
| Standard Pkg: | Product Variant Information section Available PackagingPackage Qty:160 per Tray Package Style:TQFP-44 Mounting Method:Surface Mount | ||||||||||
| Date Code: | |||||||||||
Microchip ATMEGA644PA-AN - Product Specification
Shipping Information:
ECCN:
PCN Information:
*** 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)
*** Update for PCN 113300 ***Description of Change: Qualification of palladium coated copper with gold flash (CuPdAu) as a new bond wire material for selected AT42QT1481, AT42QT2640, AT89LP3240, AT89LP51, AT89LP51xxx, AT89LP52, AT89LP6440, AT89S8253, ATmega1284, ATmega1284P, ATmega16, ATmega16xx, ATmega32, ATmega32xx, ATmega644, ATMEGA644PA, ATmega85xx, ATxmega128xxx, ATxmega16xxxx, ATxmega32xxxx, ATxmega64xx, QT60326, QT6C1x, QT6C21 and QT6E22 device families available in 44L TQFP (10x10x1mm) package.Reason for Change: To improve productivity by qualifying palladium coated copper with gold flash (CuPdAu) as a new bond wire material. Estimated First Ship Date: 22 July 2025 (date code: 2530)Revision History: May 30, 2025: Issued final notification.June 03, 2025: Re-issued final notification to update lead-frame material.
Description of Change: Qualification of palladium coated copper with gold flash (CuPdAu) as a new bond wire material for selected AT42QT1481, AT42QT2640, AT89LP3240, AT89LP51, AT89LP51xxx, AT89LP52, AT89LP6440, AT89S8253, ATmega1284, ATmega1284P, ATmega16, ATmega16xx, ATmega32, ATmega32xx, ATmega644, ATMEGA644PA, ATmega85xx, ATxmega128xxx, ATxmega16xxxx, ATxmega32xxxx, ATxmega64xx, QT60326, QT6C1x, QT6C21 and QT6E22 device families available in 44L TQFP (10x10x1mm) package.Reason for Change: To improve productivity by qualifying palladium coated copper with gold flash (CuPdAu) as a new bond wire material.Estimated First Ship Date: 22 July 2025 (date code: 2530)
Revision History:September 27, 2023: Issued initial notification.June 24, 2024: Issued cancellation notification.PCN Status:Cancellation NotificationDescription of Change:This qualification was originally performed to qualify Microchip Technology Gresham ? Fab 4 (GRTM) as an additional fabrication site for selected AT42QT1xx, AT90PWM81xx, ATMEGA128xx, ATMEGA16xx, ATMEGA32xx, ATMEGA64xx, ATMEGA8xx and ATTINYxx device families available in various packages
***Cancellation Notification***Description of Change:This qualification was originally performed to qualify Microchip Technology Gresham Fab 4 (GRTM) as an additional fabrication site for selected Atmel products.Reason for ChangeMicrochip has decided to not qualify Microchip Technology Gresham Fab 4 (GRTM) as an additional fabrication site for selected Atmel products.
PCN Status: Final NotificationDescription of Change: Qualification of ASE9 as a new final test site for selected ATMEGA16xx, ATMEGA32xx, ATMEGA644xx, and ATMEGA85xx device families available in 44L TQFP (10x10x1mm) package.Reason for Change: To improve productivity by qualifying ASE9 as a new final test site.
Description of Change:Qualification of Microchip Technology Gresham ? Fab 4 (GRTM) as an additional fabrication site for selected AT42QT1xx, AT90PWM81xx, ATMEGA128xx, ATMEGA16xx,ATMEGA32xx, ATMEGA64xx, ATMEGA8xx and ATTINYxx device families available in various packages.Reason for Change:To improve on-time delivery performance byqualifying Microchip Technology Gresham ? Fab 4 (GRTM) as an additional fabrication site.
PCN Status:Initial NotificationDescription of Change:Qualification of ASE9 as a new final test site for selected ATMEGA16xx, ATMEGA32xx, ATMEGA644xx, and ATMEGA85xx device families available in 44L TQFP (10x10x1mm) package.Reason for Change:To improve productivity by qualifying ASE9 as a new final test site.Change Implementation Status:In ProgressEstimated Qualification Completion Date:November 2023
Part Status:
Microchip ATMEGA644PA-AN - Technical Attributes
| Family Name: | ATmega |
| Core Processor: | AVR |
| Program Memory Type: | Flash |
| Flash Size (Bytes): | 64kB |
| RAM Size: | 4kB |
| Speed: | 20MHz |
| No of I/O Lines: | 32 |
| InterfaceType / Connectivity: | I2C/SPI/UART/USART |
| Peripherals: | Brown-out Detect/POR/PWM/Reset/Watchdog |
| Supply Voltage: | 1.8V to 5.5V |
| Operating Temperature: | -40°C to +105°C |
| On-Chip ADC: | 8-chx10-bit |
| Package Style: | TQFP-44 |
| Mounting Method: | Surface Mount |
Available Packaging
Package Qty:
160 per Tray
Package Style:
TQFP-44
Mounting Method:
Surface Mount