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DM54LS253 датащи(PDF) 1 Page - National Semiconductor (TI) |
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DM54LS253 датащи(HTML) 1 Page - National Semiconductor (TI) |
1 / 6 page TLF6416 June 1989 54LS253DM54LS253DM74LS253 TRI-STATE Data SelectorsMultiplexers General Description Each of these Schottky-clamped data selectorsmultiplex- ers contains inverters and drivers to supply fully comple- mentary on-chip binary decoding data selection to the AND-OR gates Separate output control inputs are provided for each of the two four-line sections The TRI-STATE outputs can interface directly with data lines of bus-organized systems With all but one of the com- mon outputs disabled (at a high impedance state) the low impedance of the single enabled output will drive the bus line to a high or low logic level Features Y TRI-STATE version of LS153 with same pinout Y Schottky-diode-clamped transistors Y Permit multiplexing from N-lines to one line Y Performs parallel-to-serial conversion Y Strobeoutput control Y High fanout totem-pole outputs Y Typical propagation delay Data to output 12 ns Select to output 21 ns Y Typical power dissipation 35 mW Y Alternate MilitaryAerospace device (54LS253) is avail- able Contact a National Semiconductor Sales Office Distributor for specifications Connection Diagram Dual-In-Line Package TLF6416 – 1 Order Number 54LS253DMQB 54LS253FMQB 54LS253LMQB DM54LS253J DM54LS253W DM74LS253M or DM74LS253N See NS Package Number E20A J16A M16A N16E or W16A Function Table Select Data Inputs Output Output Inputs Control B A C0 C1 C2 C3 G Y XX XX X X H Z LL L X X X L L LL H X X X L H LH X L X X L L LH X H X X L H HL XX L X L L HL XX H X L H HH X X X L L L HH X X X H L H Address Inputs A and B are common to both sections H e High Level L e Low Level X e Don’t Care Z e High Impedance (off) TRI-STATE is a registered trademark of National Semiconductor Corporation C1995 National Semiconductor Corporation RRD-B30M105Printed in U S A |
Аналогичный номер детали - DM54LS253 |
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Аналогичное описание - DM54LS253 |
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