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
AT28C64X-20JI Microchip Technology EEPROM PLCC-32(11.4x14) 64KbitParallel Port (Parallel)
AT28C64X-20PC Microchip Technology EEPROM PDIP-28 64KbitParallel Port (Parallel)
AT28C64X-20PI Microchip Technology EEPROM PDIP-28 64KbitParallel Port (Parallel)
AT28C64X-20SC Microchip Technology EEPROM SOIC-28 64KbitParallel Port (Parallel)
AT28C64X-20SI Microchip Technology EEPROM SOIC-28 64KbitParallel Port (Parallel)
AT28C64X-25JC Microchip Technology EEPROM PLCC-32(11.4x14) 64KbitParallel Port (Parallel)
AT28C64X-25JI Microchip Technology EEPROM PLCC-32(11.4x14) 64KbitParallel Port (Parallel)
AT28C64X-25PC Microchip Technology EEPROM PDIP-28 64KbitParallel Port (Parallel)
AT28C64X-25PI Microchip Technology EEPROM PDIP-28 64KbitParallel Port (Parallel)
AT28C64X-25SC Microchip Technology EEPROM SOIC-28 64KbitParallel Port (Parallel)
AT28C64X-25SI Microchip Technology EEPROM SOIC-28 64KbitParallel Port (Parallel)
AT28HC256-12JC Microchip Technology EEPROM PLCC-32(11.4x14) 256KbitParallel Port (Parallel)
AT28HC256-12JI Microchip Technology EEPROM PLCC-32(11.4x14) 256KbitParallel Port (Parallel)
AT28HC256-12JU Microchip Technology EEPROM PLCC-32(11.4x14) 256KbitParallel Port (Parallel)
AT28HC256-12JU-T Microchip Technology EEPROM PLCC-32(11.4x14) 256KbitParallel Port (Parallel)
AT28HC256-12PC Microchip Technology EEPROM PDIP-28 256KbitParallel Port (Parallel)
AT28HC256-12PI Microchip Technology EEPROM PDIP-28 256KbitParallel Port (Parallel)
AT28HC256-12SC Microchip Technology EEPROM SOIC-28 256KbitParallel Port (Parallel)
AT28HC256-12SI Microchip Technology EEPROM SOIC-28 256KbitParallel Port (Parallel)
AT28HC256-12SU Microchip Technology EEPROM SOIC-28-300mil 256KbitParallel Port (Parallel)
AT28HC256-12TU Microchip Technology EEPROM TSSOP-28-11.8mm 256KbitParallel Port (Parallel)
AT28HC256-70JC Microchip Technology EEPROM PLCC-32(11.4x14) 256KbitParallel Port (Parallel)
AT28HC256-70JI Microchip Technology EEPROM PLCC-32(11.4x14) 256KbitParallel Port (Parallel)
AT28HC256-70JU Microchip Technology EEPROM PLCC-32(11.4x14) 256KbitParallel Port (Parallel)
AT28HC256-70PC Microchip Technology EEPROM PDIP-28 256KbitParallel Port (Parallel)
AT28HC256-70PI Microchip Technology EEPROM PDIP-28 256KbitParallel Port (Parallel)
AT28HC256-70SU Microchip Technology EEPROM SOIC-28-300mil 256KbitParallel Port (Parallel)
AT28HC256-70SU-T Microchip Technology EEPROM SOIC-28-300mil 256KbitParallel Port (Parallel)
AT28HC256-70TU Microchip Technology EEPROM TSOP-28-8.0mm 256KbitParallel Port (Parallel)
AT28HC256-70TU-T Microchip Technology EEPROM TSOP-28-8.0mm 256KbitParallel Port (Parallel)
AT28HC256-90JC Microchip Technology EEPROM PLCC-32(11.4x14) 256KbitParallel Port (Parallel)
AT28HC256-90JI Microchip Technology EEPROM PLCC-32(11.4x14) 256KbitParallel Port (Parallel)
AT28HC256-90JU Microchip Technology EEPROM PLCC-32(11.4x14) 256KbitParallel Port (Parallel)
AT28HC256-90JU-600 Microchip Technology EEPROM PLCC-32(11.4x14) 256KbitParallel Port (Parallel)
AT28HC256-90PC Microchip Technology EEPROM PDIP-28 256KbitParallel Port (Parallel)
AT28HC256-90PI Microchip Technology EEPROM PDIP-28 256KbitParallel Port (Parallel)
AT28HC256-90SU Microchip Technology EEPROM SOIC-28-300mil 256KbitParallel Port (Parallel)
AT28HC256-90TU Microchip Technology EEPROM TSSOP-28-11.8mm 256KbitParallel Port (Parallel)
AT28HC256E-12JI Microchip Technology EEPROM PLCC-32(11.4x14) 256KbitParallel Port (Parallel)
AT28HC256E-12JU Microchip Technology EEPROM PLCC-32(11.4x14) 256KbitParallel Port (Parallel)
AT28HC256E-12PI Microchip Technology EEPROM PDIP-28 256KbitParallel Port (Parallel)
AT28HC256E-12SI Microchip Technology EEPROM SOIC-28 256KbitParallel Port (Parallel)
AT28HC256E-12SU Microchip Technology EEPROM SOIC-28-300mil 256KbitParallel Port (Parallel)
AT28HC256E-12TI Microchip Technology EEPROM TSOP-28 256KbitParallel Port (Parallel)
AT28HC256E-12TU Microchip Technology EEPROM TSOP-28-8.0mm 256KbitParallel Port (Parallel)
AT28HC256E-70JI Microchip Technology EEPROM PLCC-32(11.4x14) 256KbitParallel Port (Parallel)
AT28HC256E-70JU Microchip Technology EEPROM PLCC-32(11.4x14) 256KbitParallel Port (Parallel)
AT28HC256E-70PI Microchip Technology EEPROM PDIP-28 256KbitParallel Port (Parallel)
AT28HC256E-70SU Microchip Technology EEPROM SOIC-28 256KbitParallel Port (Parallel)
AT28HC256E-70TU Microchip Technology EEPROM TSOP-28 256KbitParallel Port (Parallel)
AT28HC256E-90JC Microchip Technology EEPROM PLCC-32(11.4x14) 256KbitParallel Port (Parallel)
AT28HC256E-90JI Microchip Technology EEPROM PLCC-32(11.4x14) 256KbitParallel Port (Parallel)
AT28HC256E-90JU Microchip Technology EEPROM PLCC-32(11.4x14) 256KbitParallel Port (Parallel)
AT28HC256E-90JU-T Microchip Technology EEPROM PLCC-32(11.4x14) 256KbitParallel Port (Parallel)
AT28HC256E-90PC Microchip Technology EEPROM PDIP-28 256KbitParallel Port (Parallel)
AT28HC256E-90PI Microchip Technology EEPROM PDIP-28 256KbitParallel Port (Parallel)
AT28HC256E-90PU Microchip Technology EEPROM PDIP-28 256KbitParallel Port (Parallel)
AT28HC256E-90SU Microchip Technology EEPROM SOIC-28-300mil 256KbitParallel Port (Parallel)
AT28HC256E-90TU Microchip Technology EEPROM TSOP-28-8.0mm 256KbitParallel Port (Parallel)
AT28HC256E-90TU-T Microchip Technology EEPROM TSOP-28-8.0mm 256KbitParallel Port (Parallel)

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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.