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
AT28C17E-20JI Microchip Technology EEPROM PLCC-32(11.4x14) 16KbitParallel Port (Parallel)
AT28C17E-20PC Microchip Technology EEPROM PDIP-28 16KbitParallel Port (Parallel)
AT28C17E-20PI Microchip Technology EEPROM PDIP-28 1MbitParallel Port (Parallel)
AT28C17E-20SC Microchip Technology EEPROM SOIC-28 16KbitParallel Port (Parallel)
AT28C17E-20SI Microchip Technology EEPROM SOIC-28 16KbitParallel Port (Parallel)
AT28C256-15JC Microchip Technology EEPROM PLCC-32(11.4x14) 256KbitParallel Port (Parallel)
AT28C256-15JI Microchip Technology EEPROM PLCC-32(11.4x14) 256KbitParallel Port (Parallel)
AT28C256-15JU Microchip Technology EEPROM PLCC-32(11.4x14) 256KbitParallel Port (Parallel)
AT28C256-15JU-T Microchip Technology EEPROM PLCC-32(11.4x14) 256KbitParallel Port (Parallel)
AT28C256-15PC Microchip Technology EEPROM PDIP-28 256KbitParallel Port (Parallel)
AT28C256-15PI Microchip Technology EEPROM PDIP-28 256KbitParallel Port (Parallel)
AT28C256-15PU Microchip Technology EEPROM PDIP-28 256KbitParallel Port (Parallel)
AT28C256-15SC Microchip Technology EEPROM SOIC-28 256KbitParallel Port (Parallel)
AT28C256-15SI Microchip Technology EEPROM SOIC-28 256KbitParallel Port (Parallel)
AT28C256-15SU Microchip Technology EEPROM SOIC-28-300mil 256KbitParallel Port (Parallel)
AT28C256-15TC Microchip Technology EEPROM TSOP-28 256KbitParallel Port (Parallel)
AT28C256-15TI Microchip Technology EEPROM TSOP-28 256KbitParallel Port (Parallel)
AT28C256-15UM/883-815 Microchip Technology EEPROM CPGA-28(14x16.5) 256KbitParallel Port (Parallel)
AT28C256-20JC Microchip Technology EEPROM PLCC-32(11.4x14) 256KbitParallel Port (Parallel)
AT28C256-20JI Microchip Technology EEPROM PLCC-32(11.4x14) 256KbitParallel Port (Parallel)
AT28C256-25JC Microchip Technology EEPROM PLCC-32(11.4x14) 256KbitParallel Port (Parallel)
AT28C256E-15JC Microchip Technology EEPROM PLCC-32(11.4x14) 256KbitParallel Port (Parallel)
AT28C256E-15JI Microchip Technology EEPROM PLCC-32(11.4x14) 256KbitParallel Port (Parallel)
AT28C256E-15JU Microchip Technology EEPROM PLCC-32(11.4x14) 256KbitParallel Port (Parallel)
AT28C256E-15PC Microchip Technology EEPROM PDIP-28 256KbitParallel Port (Parallel)
AT28C256E-15PI Microchip Technology EEPROM PDIP-28 256Kbit4.5V~5.5V
AT28C256E-15SC Microchip Technology EEPROM SOIC-28 256KbitParallel Port (Parallel)
AT28C256E-15SI Microchip Technology EEPROM SOIC-28 256KbitParallel Port (Parallel)
AT28C256E-15SU Microchip Technology EEPROM SOIC-28-300mil 256KbitParallel Port (Parallel)
AT28C256E-15TC Microchip Technology EEPROM TSOP-28 256KbitParallel Port (Parallel)
AT28C256E-15TI Microchip Technology EEPROM TSOP-28 256KbitParallel Port (Parallel)
AT28C256F-15JC Microchip Technology EEPROM PLCC-32(11.4x14) 256KbitParallel Port (Parallel)
AT28C256F-15JI Microchip Technology EEPROM PLCC-32(11.4x14) 256KbitParallel Port (Parallel)
AT28C256F-15JU Microchip Technology EEPROM PLCC-32(11.4x14) 256KbitParallel Port (Parallel)
AT28C256F-15PC Microchip Technology EEPROM PDIP-28 256KbitParallel Port (Parallel)
AT28C256F-15PI Microchip Technology EEPROM PDIP-28 256KbitParallel Port (Parallel)
AT28C256F-15SC Microchip Technology EEPROM SOIC-28 256KbitParallel Port (Parallel)
AT28C256F-15SI Microchip Technology EEPROM SOIC-28 256KbitParallel Port (Parallel)
AT28C256F-15SU Microchip Technology EEPROM SOIC-28-300mil 256KbitParallel Port (Parallel)
AT28C256F-15TC Microchip Technology EEPROM TSOP-28 256KbitParallel Port (Parallel)
AT28C256F-15TI Microchip Technology EEPROM TSOP-28 256KbitParallel Port (Parallel)
AT28C64-12JC Microchip Technology EEPROM PLCC-32(11.4x14) 64KbitParallel Port (Parallel)
AT28C64-12JI Microchip Technology EEPROM PLCC-32(11.4x14) 64KbitParallel Port (Parallel)
AT28C64-12PI Microchip Technology EEPROM PDIP-28 64KbitParallel Port (Parallel)
AT28C64-12SC Microchip Technology EEPROM SOIC-28 64KbitParallel Port (Parallel)
AT28C64-12SI Microchip Technology EEPROM SOIC-28 64KbitParallel Port (Parallel)
AT28C64-12TC Microchip Technology EEPROM TSOP-28 64KbitParallel Port (Parallel)
AT28C64-15JC Microchip Technology EEPROM PLCC-32(11.4x14) 64KbitParallel Port (Parallel)
AT28C64-15JI Microchip Technology EEPROM PLCC-32(11.4x14) 64KbitParallel Port (Parallel)
AT28C64-15PC Microchip Technology EEPROM PDIP-28 64KbitParallel Port (Parallel)
AT28C64-15PI Microchip Technology EEPROM PDIP-28 64KbitParallel Port (Parallel)
AT28C64-15SC Microchip Technology EEPROM SOIC-28 64KbitParallel Port (Parallel)
AT28C64-15SI Microchip Technology EEPROM SOIC-28 64KbitParallel Port (Parallel)
AT28C64-15TC Microchip Technology EEPROM TSOP-28 64KbitParallel Port (Parallel)
AT28C64-15TI Microchip Technology EEPROM TSOP-28 64KbitParallel Port (Parallel)
AT28C64-20JC Microchip Technology EEPROM PLCC-32(11.4x14) 64KbitParallel Port (Parallel)
AT28C64-20JI Microchip Technology EEPROM PLCC-32(11.4x14) 64KbitParallel Port (Parallel)
AT28C64-20PC Microchip Technology EEPROM PDIP-28 64KbitParallel Port (Parallel)
AT28C64-20PI Microchip Technology EEPROM PDIP-28 64KbitParallel Port (Parallel)
AT28C64-20SC Microchip Technology EEPROM SOIC-28 64KbitParallel Port (Parallel)

Request a quote for Atmel parts

Not listed? Most older Atmel part numbers are not in any online catalog. Send them anyway.

We reply by email, usually within one business day. Your details are used only to handle this request (privacy).

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.