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54F189FL Datasheet(PDF) 1 Page - National Semiconductor (TI) |
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54F189FL Datasheet(HTML) 1 Page - National Semiconductor (TI) |
1 / 8 page TLF9493 August 1995 54F74F189 64-Bit Random Access Memory with TRI-STATE Outputs General Description The ’F189 is a high-speed 64-bit RAM organized as a 16- word by 4-bit array Address inputs are buffered to minimize loading and are fully decoded on-chip The outputs are TRI- STATE and are in the high impedance state whenever the Chip Select (CS) input is HIGH The outputs are active only in the Read mode and the output data is the complement of the stored data Features Y TRI-STATE outputs for data bus applications Y Buffered inputs minimize loading Y Address decoding on-chip Y Diode clamped inputs minimize ringing Y Available in SOIC (300 mil only) Commercial Military Package Package Description Number 74F189PC N16E 16-Lead (0300 Wide) Molded Dual-In-Line 54F189DL (Note 2) J16A 16-Lead Ceramic Dual-In-Line 74F189SC (Note 1) M16A 16-Lead (0150 Wide) Molded Small Outline JEDEC 74F189SJ (Note 1) M16D 16-Lead (0300 Wide) Molded Small Outline EIAJ 54F189FL (Note 2) W16A 16-Lead Cerpack 54F189LL (Note 2) E20A 20-Lead Ceramic Leadless Chip Carrier Type C Note 1 Devices also available in 13 reel Use suffix e SCX and SJX Note 2 Military grade device with environmental and burn-in processing Use suffix e DLQB FLQB and LLQB Logic Symbols Connection Diagrams TLF9493 – 1 IEEEIEC TLF9493 – 4 Pin Assignment for DIP SOIC and Flatpak TLF9493 – 2 Pin Assignment for LCC TLF9493 – 3 TRI-STATE is a registered trademark of National Semiconductor Corporation C1995 National Semiconductor Corporation RRD-B30M105Printed in U S A |
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