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54F399

Part Number	54F399
Manufacturer	National Semiconductor
Description	(54F398 / 54F399) Quad 2-Port Register
Published	Dec 9, 2006
Detailed Description	www.DataSheet4U.com 54F 74F398 54F 74F399 Quad 2-Port Register May 1995 54F 74F398 54F 74F399 Quad 2-Port Registe...
Datasheet	54F399 PDF File

Overview

www.
DataSheet4U.
com 54F 74F398 54F 74F399 Quad 2-Port Register 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 Y Y Y Select inputs from two data sources Fully positive edge-triggered operation Both true and complement outputs ’F398 Guaranteed 4000V minimum ESD protection ’F399 Commercial 74...

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