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54F257AFMQB 数据表(PDF) 1 Page - National Semiconductor (TI) |
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54F257AFMQB 数据表(HTML) 1 Page - National Semiconductor (TI) |
1 / 8 page TLF9507 November 1994 54F74F257A Quad 2-Input Multiplexer with TRI-STATE Outputs General Description The ’F257A is a quad 2-input multiplexer with TRI-STATE outputs Four bits of data from two sources can be selected using a Common Data Select input The four outputs pres- ent the selected data in true (non-inverted) form The out- puts may be switched to a high impedance state with a HIGH on the common Output Enable (OE) input allowing the outputs to interface directly with bus-oriented systems Features Y Multiplexer expansion by tying outputs together Y Non-inverting TRI-STATE outputs Y Input clamp diodes limit high-speed termination effects Y Guaranteed 4000V minimum ESD protection Commercial Military Package Package Description Number 74F257APC N16E 16-Lead (0300 Wide) Molded Dual-In-Line 54F257ADM (Note 2) J16A 16-Lead Ceramic Dual-In-Line 74F257ASC (Note 1) M16A 16-Lead (0150 Wide) Molded Small Outline JEDEC 74F257ASJ (Note 1) M16D 16-Lead (0300 Wide) Molded Small Outline EIAJ 54F257AFM (Note 2) W16A 16-Lead Cerpack 54F257ALL (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 DMQB FMQB and LMQB Logic Symbols Connection Diagrams TLF9507 – 3 IEEEIEC TLF9507 – 5 Pin Assignment for DIP SOIC and Flatpak TLF9507 – 1 Pin Assignment for LCC TLF9507 – 2 TRI-STATE is a registered trademark of National Semiconductor Corporation C1995 National Semiconductor Corporation RRD-B30M75Printed in U S A |
类似零件编号 - 54F257AFMQB |
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类似说明 - 54F257AFMQB |
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