{{tag>collection_az vendor_microchip year_unknown type_memory type_memory/eeprom foundry_microchip tech_350nm}}

24C EEPROM, looks like Microchip's standard 350 nm 3-metal process.

IBIS model: "Manufactured on Microchip's 160K process"

====== Package ======

8-pin SOIC.

{{:azonenberg:microchip:dscf4969_cropped.jpg?300|}}

Markings:

    24LC256I
    SN (e3) 1115
    (Microchip logo) K7U
    
====== Die ======

Size is approximately 1760 x 1830 μm (3.22 mm<sup>2</sup>)

{{:azonenberg:microchip:24lc256_bf_neo10x_3k.jpg?600|}}

Mask revision markings. Interestingly, not all in the same spot on the die.

{{:azonenberg:microchip:24lc256_07_bf_neo40x_annotated.jpg?600|}}

{{:azonenberg:microchip:24lc256_08_bf_neo40x_annotated.jpg?600|}}

Logo and die ID.

{{:azonenberg:microchip:24lc256_09_bf_neo40x_annotated.jpg?600|}}