54F399

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 74F398PC Military Package Number N20A Package Description 20-Lead (0 300 Wide) Molded Dual-In-Line 20-Lead Ceramic Dual-In-Line 20-Lead (0 300 Wide) Molded Small Outline JEDEC 20-Lead Cerpack 20-Lead Ceramic Leadless Chip Carrier Type C 20-Lead (0 300 Wide) Molded Dual-In-Line 20-Lead Ceramic Dual-In-Line 20-Lead (0 300 Wide) Molded Small Outline JEDEC 20-Lead (0 300 Wide) Molded Small Outline EIAJ 20-Lead Cerpack 20-Lead Ceramic Leadless Chip Carrier Type C 54F398DM (Note 2) 74F398SC (Note 1) 54F398FM (Note 2) 54F398LM (Note 2) 74F399PC 54F399DM (Note 2) 74F399SC (Note 1) 74F399SJ (Note 1) 54F399FM (Note 2) 54F399LM (Note 2) J20A M20B W20A E20A N20A J20A M20B M20D W20A E20A Note 1 Devices also available in 13 reel Use suffix e SCX and SJX Note 2 Military grade device with environmenta...