Atmel part numbers

Atmel (AVR ATmega/ATtiny, SAM Arm MCUs, AT24/AT25 EEPROM, CryptoAuthentication) was acquired by Microchip Technology in 2016.

Atmel is now Microchip Technology (2016). We quote Atmel parts — current, obsolete and end-of-life — and parts that carry older Atmel markings. See also all Microchip Technology part numbers.

5,159 Atmel heritage part numbers

Part-number families from Atmel, listed under their current manufacturer.

Part numberManufacturerTypePackageKey specs
ATMEGA325P-20AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-64(14x14) 20MHzAVR
ATMEGA325P-20MUR Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-64-EP(9x9) 20MHzAVR
ATMEGA325PA-AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-64(14x14) 20MHzAVR
ATMEGA325PV-10MU Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-64(9x9) 10MHzAVR
ATMEGA325V-8AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-64(14x14) 8MHzAVR
ATMEGA325V-8MU Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-64-EP(9x9) 8MHzAVR
ATMEGA328-AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-32(7x7) 20MHzAVR
ATMEGA328-MMH Microchip Technology Microcontrollers (MCU/MPU/SOC) VQFN-28(4x4) 20MHzAVR
ATMEGA328-MU Microchip Technology Microcontrollers (MCU/MPU/SOC) VQFN-32-EP(5x5) 20MHzAVR
ATMEGA328P-AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-32(7x7) 20MHzAVR
ATMEGA328P-AUR Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-32(7x7) 20MHzAVR
ATMEGA328PB-AN Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-32(7x7) 20MHzAVR
ATMEGA328PB-AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-32(7x7) 20MHzAVR
ATMEGA328PB-AUR Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-32(7x7) 20MHzAVR
ATMEGA328PB-MN Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-32-EP(5x5) 20MHzAVR
ATMEGA328PB-MU Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-32-EP(5x5) 20MHzAVR
ATMEGA328P-MMH Microchip Technology Microcontroller Units (MCUs/MPUs/SOCs) VQFN-28-EP(5x5) 20MHzAVR
ATMEGA328P-MN Microchip Technology Microcontrollers (MCU/MPU/SOC) VQFN-32-EP(5x5) 20MHzAVR
ATMEGA328P-MU Microchip Technology Microcontroller Units (MCUs/MPUs/SOCs) HVQFN-32(5x5) AVR
ATMEGA328P-PN Microchip Technology Microcontrollers (MCU/MPU/SOC) PDIP-28 20MHzAVR
ATMEGA328P-PU Microchip Technology Microcontrollers (MCU/MPU/SOC) DIP-28-300mil 20MHzAVR
ATMEGA328-PU Microchip Technology Microcontrollers (MCU/MPU/SOC) PDIP-28 20MHzAVR
ATMEGA3290-16AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-100(14x14) 16MHzAVR
ATMEGA3290A-AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-100(14x14) 20MHzAVR
ATMEGA3290P-20AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-100(14x14) 20MHzAVR
ATMEGA3290PA-AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-100(14x14) 20MHzAVR
ATMEGA3290PV-10AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-100(14x14) 10MHzAVR
ATMEGA3290V-8AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-100(14x14) 8MHzAVR
ATMEGA329-16AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-64(14x14) 16MHzAVR
ATMEGA329A-AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-64(14x14) 20MHzAVR
ATMEGA329A-MUR Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-64-EP(9x9) 20MHzAVR
ATMEGA329P-20AN Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-64(14x14) 20MHzAVR
ATMEGA329P-20MN Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-64-EP(9x9) 20MHzAVR
ATMEGA329P-20MU Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-64-EP(9x9) 20MHzAVR
ATMEGA329PA-AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-64(14x14) 20MHzAVR
ATMEGA329PV-10AN Microchip Technology Microcontroller Units (MCUs/MPUs/SOCs) TQFP-64(14x14) 10MHzAVR
ATMEGA329PV-10ANR Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-64(14x14) 10MHzAVR
ATMEGA329PV-10AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-64(14x14) 10MHzAVR
ATMEGA329PV-10MN Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-64-EP(9x9) 10MHzAVR
ATMEGA329PV-10MNR Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-64-EP(9x9) 10MHzAVR
ATMEGA329PV-10MU Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-64-EP(9x9) 10MHzAVR
ATMEGA329V-8AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-64(14x14) 8MHzAVR
ATMEGA32A-AN Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-44(10x10) 16MHzAVR
ATMEGA32A-AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-44(10x10) 16MHzAVR
ATMEGA32A-AUR Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-44(10x10) 16MHzAVR
ATMEGA32A-MU Microchip Technology Microcontrollers (MCU/MPU/SOC) VQFN-44(7x7) 16MHzAVR
ATMEGA32A-PN Microchip Technology Microcontrollers (MCU/MPU/SOC) PDIP-40 16MHzAVR
ATMEGA32A-PU Microchip Technology Microcontrollers (MCU/MPU/SOC) DIP-40 16MHzAVR
ATMEGA32L-8AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-44(10x10) 8MHzAVR
ATMEGA32L-8AUR Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-44(10x10) 8MHzAVR
ATMEGA32L-8MU Microchip Technology Microcontrollers (MCU/MPU/SOC) VQFN-44(7x7) 8MHzAVR
ATMEGA32L-8MUR Microchip Technology Microcontrollers (MCU/MPU/SOC) VQFN-44(7x7) 8MHzAVR
ATMEGA32L-8PU Microchip Technology Microcontrollers (MCU/MPU/SOC) PDIP-40 8MHzAVR
ATMEGA32M1-AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-32(7x7) 16MHzAVR
ATmega32M1-AUR Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-32(7x7) 16MHzAVR
ATMEGA32M1-MU Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-32(5x5) 16MHzAVR
ATMEGA32U2-AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-32(7x7) 16MHzAVR
ATMEGA32U2-AUR Microchip Technology Microcontroller Units (MCUs/MPUs/SOCs) TQFP-32(7x7) 16MHzAVR
ATMEGA32U2-MU Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-32-EP(5x5) 16MHzAVR
ATMEGA32U2-MUR Microchip Technology Microcontrollers (MCU/MPU/SOC) VQFN-32-EP(5x5) 16MHzAVR

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Frequently asked questions

Is Atmel still in business?

Atmel (AVR ATmega/ATtiny, SAM Arm MCUs, AT24/AT25 EEPROM, CryptoAuthentication) was acquired by Microchip Technology in 2016.

Can I still buy Atmel parts?

Yes. PartnerSemi quotes Atmel part numbers, including obsolete and end-of-life parts and parts with old Atmel markings. Send the part number and quantity; we reply with price, lead time, date code and origin. We are an independent distributor, not an authorized Atmel or Microchip Technology distributor.

PartnerSemi is not affiliated with Atmel or Microchip Technology. Brand names are used to identify parts only.