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
ATSAM4LS2CA-AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-100(14x14) 48MHzARM Cortex-M4
ATSAM4LS2CA-AUR Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-100(14x14) 48MHzARM Cortex-M4
ATSAM4LS2CA-CFU Microchip Technology Microcontrollers (MCU/MPU/SOC) VFBGA-100 48MHzARM Cortex-M4
ATSAM4LS2CA-CFUR Microchip Technology Microcontrollers (MCU/MPU/SOC) VFBGA-100 48MHzARM Cortex-M4
ATSAM4LS4AA-AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-48(7x7) 48MHzARM Cortex-M4
ATSAM4LS4AA-AUR Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-48(7x7) 48MHzARM Cortex-M4
ATSAM4LS4AA-MU Microchip Technology Microcontroller Units (MCUs/MPUs/SOCs) QFN-48-EP(7x7) 48MHzARM Cortex-M4
ATSAM4LS4AA-MUR Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-48-EP(7x7) 48MHzARM Cortex-M4
ATSAM4LS4BA-AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-64(10x10) 48MHzARM Cortex-M4
ATSAM4LS4BA-AUR Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-64(10x10) 48MHzARM Cortex-M4
ATSAM4LS4BA-MU Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-64-EP(9x9) 48MHzARM Cortex-M4
ATSAM4LS4BA-MUR Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-64-EP(9x9) 48MHzARM Cortex-M4
ATSAM4LS4BA-UUR Microchip Technology Microcontrollers (MCU/MPU/SOC) WLCSP-64(4.3x4.4) 48MHzARM Cortex-M4
ATSAM4LS4CA-AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-100(14x14) 48MHzARM Cortex-M4
ATSAM4LS4CA-AUR Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-100(14x14) 48MHzARM Cortex-M4
ATSAM4LS4CA-CFU Microchip Technology Microcontrollers (MCU/MPU/SOC) VFBGA-100 48MHzARM Cortex-M4
ATSAM4LS4CA-CFUR Microchip Technology Microcontrollers (MCU/MPU/SOC) VFBGA-100 48MHzARM Cortex-M4
ATSAM4LS8AA-MU Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-48-EP(7x7) 48MHzARM Cortex-M4
ATSAM4LS8BA-AU Microchip Technology Microcontrollers (MCU/MPU/SOC) LQFP-64(10x10) 48MHzARM Cortex-M4
ATSAM4LS8BA-AUR Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-64(10x10) 48MHzARM Cortex-M4
ATSAM4LS8BA-MU Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-64-EP(9x9) 48MHzARM Cortex-M4
ATSAM4LS8BA-UUR Microchip Technology Microcontrollers (MCU/MPU/SOC) WLCSP-64 48MHzARM Cortex-M4
ATSAM4LS8CA-AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-100(14x14) 48MHzARM Cortex-M4
ATSAM4LS8CA-CFU Microchip Technology Microcontrollers (MCU/MPU/SOC) VFBGA-100 48MHzARM Cortex-M4
ATSAM4LS8CA-CFUR Microchip Technology Microcontrollers (MCU/MPU/SOC) VFBGA-100 48MHzARM Cortex-M4
ATSAM4N16BA-AUR Microchip Technology Microcontrollers (MCU/MPU/SOC) LQFP-64(10x10) 100MHzARM Cortex-M4
ATSAM4N16BA-MU Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-64-EP(9x9) 100MHzARM Cortex-M4
ATSAM4N16BA-MUR Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-64-EP(9x9) 100MHzARM Cortex-M4
ATSAM4N16CA-AU Microchip Technology Microcontrollers (MCU/MPU/SOC) LQFP-100(14x14) 100MHzARM Cortex-M4
ATSAM4N16CA-CFU Microchip Technology Microcontrollers (MCU/MPU/SOC) VFBGA-100 100MHzARM Cortex-M4
ATSAM4N16CA-CFUR Microchip Technology Microcontrollers (MCU/MPU/SOC) VFBGA-100 100MHzARM Cortex-M4
ATSAM4N16CA-CU Microchip Technology Microcontrollers (MCU/MPU/SOC) TFBGA-100 100MHzARM Cortex-M4
ATSAM4N8AA-AU Microchip Technology Microcontrollers (MCU/MPU/SOC) LQFP-48(7x7) 100MHzARM Cortex-M4
ATSAM4N8AA-AUR Microchip Technology Microcontrollers (MCU/MPU/SOC) LQFP-48(7x7) 100MHzARM Cortex-M4
ATSAM4N8AA-MU Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-48-EP(7x7) 100MHzARM Cortex-M4
ATSAM4N8AA-MUR Microchip Technology Microcontrollers (MCU/MPU/SOC) WQFN-48-EP(7x7)
ATSAM4N8BA-AU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-64(10x10) 100MHzARM Cortex-M4
ATSAM4N8BA-AUR Microchip Technology Microcontrollers (MCU/MPU/SOC) LQFP-64(10x10) 100MHzARM Cortex-M4
ATSAM4N8BA-MU Microchip Technology Microcontrollers (MCU/MPU/SOC) TQFP-64(10x10) 100MHzARM Cortex-M4
ATSAM4N8CA-AU Microchip Technology Microcontrollers (MCU/MPU/SOC) LQFP-100(14x14) 100MHzARM Cortex-M4
ATSAM4N8CA-CFU Microchip Technology Microcontrollers (MCU/MPU/SOC) VFBGA-100 100MHzARM Cortex-M4
ATSAM4N8CA-CFUR Microchip Technology Microcontrollers (MCU/MPU/SOC) VFBGA-100 100MHzARM Cortex-M4
ATSAM4N8CA-CU Microchip Technology Microcontrollers (MCU/MPU/SOC) TFBGA-100 100MHzARM Cortex-M4
ATSAM4S16BA-AN Microchip Technology Microcontrollers (MCU/MPU/SOC) LQFP-64(10x10) 120MHzARM Cortex-M4
ATSAM4S16BA-ANR Microchip Technology Microcontrollers (MCU/MPU/SOC) LQFP-64(10x10) 120MHzARM Cortex-M4
ATSAM4S16BA-AU Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-64-EP(9x9) 120MHzARM Cortex-M4
ATSAM4S16BA-AUR Microchip Technology Microcontrollers (MCU/MPU/SOC) LQFP-64(10x10) 120MHzARM Cortex-M4
ATSAM4S16BA-MU Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-64-EP(9x9) 120MHzARM Cortex-M4
ATSAM4S16BA-MUR Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-64-EP(9x9) 120MHzARM Cortex-M4
ATSAM4S16BA-UUR Microchip Technology Microcontrollers (MCU/MPU/SOC) WLCSP-64
ATSAM4S16BB-AN Microchip Technology Microcontrollers (MCU/MPU/SOC) LQFP-64(10x10) 120MHzARM Cortex-M4
ATSAM4S16BB-ANR Microchip Technology Microcontrollers (MCU/MPU/SOC) LQFP-64(10x10) 120MHzARM Cortex-M4
ATSAM4S16CA-AN Microchip Technology Microcontrollers (MCU/MPU/SOC) LQFP-100(14x14) 120MHzARM Cortex-M4
ATSAM4S16CA-ANR Microchip Technology Microcontrollers (MCU/MPU/SOC) LQFP-100(14x14) 120MHzARM Cortex-M4
ATSAM4S16CA-AU Microchip Technology Microcontrollers (MCU/MPU/SOC) LQFP-100(14x14) 120MHzARM Cortex-M4
ATSAM4S16CA-CFN Microchip Technology Microcontrollers (MCU/MPU/SOC) VFBGA-100 120MHzARM Cortex-M4
ATSAM4S16CA-CFNR Microchip Technology Microcontrollers (MCU/MPU/SOC) VFBGA-100 120MHzARM Cortex-M4
ATSAM4S16CA-CFU Microchip Technology Microcontrollers (MCU/MPU/SOC) QFN-100 120MHzARM Cortex-M4
ATSAM4S16CA-CFUR Microchip Technology Microcontrollers (MCU/MPU/SOC) VFBGA-100 120MHzARM Cortex-M4
ATSAM4S16CA-CU Microchip Technology Microcontrollers (MCU/MPU/SOC) TFBGA-100 120MHzARM Cortex-M4

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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.