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Partname:MC74F399N
Description:Quad 2-port register
Manufacturer:Motorola
Package:PDIP
Pins:16
Oper. temp.:-55 to 125
Datasheet:PDF (64K).
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The MC54/74F399 is the logical equivalent of a quad 2-input multiplexer feeding into four edge-triggered flip flops. A common Select input determines which of the two 4-bit words is accepted. The selected data enters the flipflops on the rising edge of the clock. The MC54/74F399 is the 16-pin version of the MC54/74F398, with only the Q outputs of the flip-flops available.

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