UPD4992 series datasheets. Manufacturer: NEC Electronics Inc..

UPD4992CX Calendar clock Datasheet*) UPD4992GS Calendar clock Datasheet*) UPD4992GS-E2 Calendar clock Datasheet*) UPD4992GS-T1 Calendar clock Datasheet*) UPD4992GS-T2 Calendar clock Datasheet*) UPD4992 8-Bit Parallel I/O Calendar Clock Datasheet*)

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