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74F399

National Semiconductor
Part Number 74F399
Manufacturer National Semiconductor
Description Quad 2-Port Register
Published Aug 5, 2016
Detailed Description 54F 74F398  54F 74F399 Quad 2-Port Register www.DataSheet4U.com May 1995 54F 74F398  54F 74F399 Quad 2-Port Registe...
Datasheet PDF File 74F399 PDF File

74F399
74F399


Overview
54F 74F398  54F 74F399 Quad 2-Port Register www.
DataSheet4U.
com May 1995 54F 74F398  54F 74F399 Quad 2-Port Register General Description The ’F398 and ’F399 are the logical equivalents of a quad 2-input multiplexer feeding into four edge-triggered flipflops 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 ’F399 is the 16-pin version of the ’F398 with only the Q outputs of the flip-flops available Features Y Select inputs from two data sources Y Fully positive edge-triggered operation Y Both true and complement outputs ’F398 Y Guaranteed 4000V minimum ESD protection ’F399 Commercial 74...



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