UPD75P3018 Datasheet, PDF (33/60 Pages) NEC – 4-BIT SINGLE-CHIP MICROCONTROLLER

µPD75P3018
8.4 One-time PROM Screening
Due to its structure, the one-time PROM cannot be fully tested before shipment by NEC. Therefore, NEC recommends
that after the required data is written and the PROM is stored under the temperature and time conditions shown below,
the PROM should be verified via a screening.
Storage temperature
125°C
Storage time
24 hours
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