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Signetics 8051AMD microprocessors
AMD Fujitsu
Intel P8051AH OKI M80C51-57
Siemens Signetics SCN8051H CCN40 / SCN8051HCCN40
USSR KR1816VE51

Signetics 8051AMD microprocessors
AMD D8051 AMD ID8051
AMD MD8051B AMD P8051
AMD D8051AH / D8051AHB AMD ID8051AH / ID8051AHB
AMD IP8051AH / IP8051AHB AMD L8051AH / L8051AHB
AMD N8051AH AMD P8051AH / P8051AHB
AMD D80C51BH AMD D80C51BH-1
AMD N80C51BH AMD N80C51BH-1
AMD P80C51BH AMD P80C51BH-1

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