54F2244 Datasheet | National Semiconductor

Description The ’F2244 is an octal buffer line driver designed to drive the capacitive inputs of MOS memory drivers address drivers clock drivers and bus-oriented transmitters receivers The 25X series resistors in the outputs reduce ringing and eliminate the need for external resistors Features Y TRI-STATE outputs drive bus lines or buffer memory address registers Y 12 m A source current Y 25X series resistors in outputs eliminate the need for external resistors Y Designed to drive the capacitive inputs of MOS devices Y Guaranteed 4000V minimum ESD protection mercial 74F2244PC 74F2244SC (Note 1) 74F2244MSA (Note 1) Military 54F2244DM (Note 2) 54F2244FM (Note 2) 54F2244LM (Note 2) Package Number N20B J20A M20B MSA20 W20A E20A 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 Molded Shrink Small Outline EIAJ Type II 20-Lead Cerpak 20-Lead Ceramic Leadless Chip Carier Type C Note 1 Devices also available in 13 reel Use suffix e SCX and MSAX Note 2 Military grade device with environmental and burn-in processing Use suffix e DMQB FMQB and LMQB Connection Diagrams Pin Assignment for LCC ’F2244 Pin Assignment for DIP SOIC and SSOP ’F2244 TL F 9499 - 3 TRI-STATE is a registered trademark of National Semiconductor Corporation C1995 National Semiconductor Corporation TL F 9499 TL F 9499 - 4 RRD-B30M105 Printed in U S A Logic Symbol IEEE IEC ’F2244 Obsolete Unit Loading Fan Out Pin Names Description OE1 OE2 OE2 Ian Ibn Oan Obn TRI-STATE Output Enable Input (Active LOW) TRI-STATE Output Enable Input (Active HIGH) Inputs Outputs Worst-case ’F2244 disabled Truth Table ’F2244 OE1 Ian Oan OE2 Ibn Obn HXZ L HH L LL HXZ L HH LLL H e HIGH Voltage Level L e LOW Voltage Level X e Immaterial Z e High Impedance TL F 9499 - 6 54F 74F UL HIGH...