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
ATMEGA32U4-AU Microchip Technology Microcontrollers (MCU/MPU/SOC) QFP-44(10x10) 16MHzAVR
ATMEGA32U4-MU Microchip Technology Microcontrollers (MCU/MPU/SOC) VQFN-44-EP(7x7) 16MHzAVR
ATMEGA32U4-MUR Microchip Technology Microcontrollers (MCU/MPU/SOC) VQFN-44-EP(7x7) 16MHzAVR
ATMEGA32U4RC-AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-44(10x10) 16MHzAVR
ATMEGA32U4RC-MU Microchip Technology Microcontrollers (MCU/MPU/SOC) VQFN-44-EP(7x7) 16MHzAVR
ATMEGA406-1AAU Microchip Technology Microcontrollers (MCU/MPU/SOC) LQFP-48(7x7) 1MHzAVR
ATMEGA4808-AF Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-32(7x7) 20MHzAVR
ATMEGA4808-AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-32(7x7) 20MHzAVR
ATMEGA4808-MF Microchip Technology Microcontrollers (MCU/MPU/SOC) VQFN-32(5x5) 20MHzAVR
ATMEGA4809-AF Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-48(7x7) 20MHzAVR
ATMEGA4809-AFR Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-48(7x7) 20MHzAVR
ATMEGA4809-AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-48(7x7) 20MHzAVR
ATMEGA4809-MF Microchip Technology Microcontrollers (MCU/MPU/SOC) VQFN-48-EP(6x6) 20MHzAVR
ATMEGA4809-MU Microchip Technology Microcontroller Units (MCUs/MPUs/SOCs) VQFN-48-EP(6x6) 20MHzAVR
ATMEGA4809-PF Microchip Technology Microcontrollers (MCU/MPU/SOC) PDIP-40 20MHzAVR
ATMEGA48-20AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-32(7x7) 20MHzAVR
ATMEGA48-20MMU Microchip Technology Microcontrollers (MCU/MPU/SOC) VQFN-28(4x4) 20MHzAVR
ATMEGA48-20MU Microchip Technology Microcontrollers (MCU/MPU/SOC) VQFN-32(5x5) 20MHzAVR
ATMEGA48-20PU Microchip Technology Microcontrollers (MCU/MPU/SOC) PDIP-28 20MHzAVR
ATMEGA48A-AUR Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-32(7x7) 20MHzAVR
ATMEGA48A-MU Microchip Technology Microcontrollers (MCU/MPU/SOC) VQFN-32(5x5) 20MHzAVR
ATMEGA48A-PU Microchip Technology Microcontrollers (MCU/MPU/SOC) PDIP-28 20MHzAVR
ATMEGA48P-20AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-32(7x7) 20MHzAVR
ATMEGA48P-20MMU Microchip Technology Microcontrollers (MCU/MPU/SOC) VQFN-28(4x4) 20MHzAVR
ATMEGA48P-20MU Microchip Technology Microcontrollers (MCU/MPU/SOC) VQFN-32(5x5) 20MHzAVR
ATMEGA48P-20PU Microchip Technology Microcontrollers (MCU/MPU/SOC) PDIP-28 20MHzAVR
ATMEGA48PA-AN Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-32(7x7) 20MHzAVR
ATMEGA48PA-AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-32(7x7) 20MHzAVR
ATMEGA48PA-MN Microchip Technology Microcontrollers (MCU/MPU/SOC) VQFN-32(5x5) 20MHzAVR
ATMEGA48PA-MU Microchip Technology Microcontrollers (MCU/MPU/SOC) VQFN-32(5x5) 20MHzAVR
ATMEGA48PA-PU Microchip Technology Microcontrollers (MCU/MPU/SOC) DIP-28-300mil 20MHzAVR
ATMEGA48PB-AN Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-32(7x7) 20MHzAVR
ATMEGA48PB-AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-32(7x7) 20MHzAVR
ATMEGA48PB-MN Microchip Technology Microcontrollers (MCU/MPU/SOC) VFQFN-32(5x5) 20MHzAVR
ATMEGA48PB-MU Microchip Technology Microcontrollers (MCU/MPU/SOC) VQFN-32-EP(5x5) 20MHzAVR
ATMEGA48PV-10AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-32(7x7) 10MHzAVR
ATMEGA48PV-10MMU Microchip Technology Microcontrollers (MCU/MPU/SOC) VQFN-28(4x4) 10MHzAVR
ATMEGA48PV-10MU Microchip Technology Microcontroller Units (MCUs/MPUs/SOCs) QFN-32-EP(5x5) 10MHzAVR
ATMEGA48PV-10PU Microchip Technology Microcontrollers (MCU/MPU/SOC) PDIP-28 10MHzAVR
ATMEGA48V-10AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-32(7x7) 10MHzAVR
ATMEGA48V-10MMH Microchip Technology Microcontrollers (MCU/MPU/SOC) VQFN-28(4x4) 10MHzAVR
ATMEGA48V-10MMU Microchip Technology Microcontrollers (MCU/MPU/SOC) VQFN-28(4x4) 10MHzAVR
ATMEGA48V-10MU Microchip Technology Microcontrollers (MCU/MPU/SOC) VQFN-32-EP(5x5) 10MHzAVR
ATMEGA48V-10PU Microchip Technology Microcontrollers (MCU/MPU/SOC) PDIP-28 10MHzAVR
ATMEGA640-16CU Microchip Technology Microcontrollers (MCU/MPU/SOC) CBGA-100 16MHzAVR
ATMEGA640V-8AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-100(14x14) 8MHzAVR
ATMEGA640V-8CU Microchip Technology Microcontrollers (MCU/MPU/SOC) CBGA-100 8MHzAVR
ATMEGA64-16AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-64(14x14) 16MHzAVR
ATMEGA644-20AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-44(10x10) 20MHzAVR
ATMEGA644-20MUR Microchip Technology Microcontrollers (MCU/MPU/SOC) VQFN-44-EP(7x7) 20MHzAVR
ATMEGA644-20PU Microchip Technology Microcontrollers (MCU/MPU/SOC) PDIP-40 20MHzAVR
ATMEGA644A-AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-44(10x10) 20MHzAVR
ATMEGA644A-MU Microchip Technology Microcontrollers (MCU/MPU/SOC) VQFN-44(7x7) 20MHzAVR
ATMEGA644A-PU Microchip Technology Microcontrollers (MCU/MPU/SOC) PDIP-40 20MHzAVR
ATMEGA644P-20AQ Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-44(10x10) 20MHzAVR
ATMEGA644P-20AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-44(10x10) 20MHzAVR
ATMEGA644P-20MQ Microchip Technology Microcontrollers (MCU/MPU/SOC) VQFN-44(7x7) 20MHzAVR
ATMEGA644P-20MU Microchip Technology Microcontrollers (MCU/MPU/SOC) VQFN-44-EP(7x7) 20MHzAVR
ATMEGA644P-A15MZ Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-44-EP(7x7) 16MHzAVR
ATMEGA644PA-AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-44(10x10) 20MHzAVR

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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.