National Semiconductor 54F521
The ’F521 is an expandable 8-bit comparator It compares two words of up to eight bits each and provides a LOW output when the two words match bit for bit The expansion input IA e B also serves as an active LOW enable input Features Y Y Y Compares two 8-bit words in 6 5 ns typ Expandable to any word length 20-pin package Commercial 74F521PC 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 (0 300 Wide) Molded Small Outline EIAJ 20-Lead Molded Shrink Small Outline EIAJ...GENERAL DESCRIPTION
The ’F521 is an expandable 8-bit comparator It compares two words of up to eight bits each and provides a LOW output when the two words match bit for bit The expansion input IA e B also serves as an active LOW enable inputFEATURES
Y Y Y Compares two 8-bit words in 6 5 ns typ Expandable to any word length 20-pin package Commercial 74F521PC Military Package Number N20A PackageDESCRIPTION
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 Molded Shrink Small Outline EIAJ type II 54F521DM (Note 2) 74F521SC (Note 1) 74F521SJ (Note 1) 74F521MSA (Note 1) J20A M20B M20D MSA20 Note 1 Devices also available in 13 reel Use suffix e SCX SJX and MSAX Note 2 Military grade device with environmental and burn-in processing Use suffix e DMQB Logic Symbols IEEE IEC TL F 9545 – 1 TL F 9545 – 4 TRI-STATE is a registered trademark of National Semiconductor Corporat...