Overview
The AT28HC256-90SI is an EEPROM made by Microchip Technology in a SOIC-28 package with 5 pins.
PCBKit's library has its footprint (Package_SO:SOIC-28W_7.5x17.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C19750489).
Symbol
The library has no symbol for this part yet.
Footprint
Parts like it
8
AT28BV256-20SU
SOIC-28-300mil-40℃~+85℃ 10 Years 10000 times 10ms 2.7V~3.6V 256Kbit Hardware write protection function、Noise suppression function、Software write protection function、Built-in power-on reset (POR)、Built-in error correction code (ECC) function Parallel Port (Parallel) SOIC-28-300mil EEPROM ROHSMicrochip TechnologyEEPROMAT28BV64B-20SU-T
SOIC-28-300mil-40℃~+85℃ 10 Years 100,000 cycles 10ms 2.7V~3.6V 64Kbit Hardware write protection function、Software write protection function、Page write protection function Parallel Port (Parallel) SOIC-28-300mil EEPROM ROHSMicrochip TechnologyEEPROMAT28HC256-70SU
SOIC-28-300mil-40℃~+85℃ 10 Years 10000 times 10ms 256Kbit 4.5V~5.5V Hardware write protection function、Software write protection function、Built-in error correction code (ECC) function Parallel Port (Parallel) SOIC-28-300mil EEPROM ROHSMicrochip TechnologyEEPROMAT28HC256E-12SU
SOIC-28-300mil-40℃~+85℃ 10 Years 100,000 cycles 10ms 256Kbit 4.5V~5.5V Hardware write protection function、Software write protection function Parallel Port (Parallel) SOIC-28-300mil EEPROM ROHSMicrochip TechnologyEEPROMAT28HC64B-70SU
SOIC-28-300mil-40℃~+85℃ 10 Years 100,000 cycles 10ms 4.5V~5.5V 64Kbit Hardware write protection function、Software write protection function、Built-in error correction code (ECC) function Parallel Port (Parallel) SOIC-28-300mil EEPROM ROHSMicrochip TechnologyEEPROMAT28C256E-15SU
SOIC-28-300mil-40℃~+85℃ 10 Years 100,000 cycles 10ms 256Kbit 4.5V~5.5V Hardware write protection function、Software write protection function Parallel Port (Parallel) SOIC-28-300mil EEPROM ROHSMicrochip TechnologyEEPROMAT28HC256F-90SU
SOIC-28-300mil-55℃~+125℃ 10 Years 100,000 cycles 256Kbit 3ms 4.5V~5.5V Hardware write protection function、Software write protection function、Built-in error correction code (ECC) function Parallel Port (Parallel) SOIC-28-300mil EEPROM ROHSMicrochip TechnologyEEPROMAT28C256-15SU
SOIC-28-300mil-40℃~+85℃ 10 Years 10000 times 10ms 256Kbit 4.5V~5.5V Hardware write protection function、Software write protection function Parallel Port (Parallel) SOIC-28-300mil EEPROM ROHSMicrochip TechnologyEEPROM
Questions
Is there a KiCad symbol and footprint for the AT28HC256-90SI?
Yes. the footprint Package_SO:SOIC-28W_7.5x17.9mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the AT28HC256-90SI?
SOIC-28, with 5 pins. Its footprint is drawn on this page.
Where can I order the AT28HC256-90SI?
JLCPCB lists it as part C19750489, with 0 in stock; the sellers' links on this page open their listings.
What can replace the AT28HC256-90SI?
Parts like it in the library: the AT28BV256-20SU by Microchip Technology, the AT28BV64B-20SU-T by Microchip Technology, the AT28HC256-70SU by Microchip Technology and the AT28HC256E-12SU by Microchip Technology. Check their datasheets: a part that fits the footprint may still differ in its ratings.