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1 MC74HC390ADR2 Dual 4-Stage Binary Ripple Counter with ±2 and ±5 Sections 208K ON 4212408
2 MC74HC390ADR2 Dual 4−Stage Binary Ripple Counter with /2and /5 Sections High−Performance Silicon−Gate CMOS 130K ON 2094813
3 MC74HC390ADR2G Dual 4−Stage Binary Ripple Counter with /2and /5 Sections High−Performance Silicon−Gate CMOS 130K ON 2094812