54LS151 Datasheet | National Semiconductor

Description This data selector multiplexer contains full on-chip decoding to select the desired data source The ’LS151 selects one-of-eight data sources The ’LS151 has a strobe input which must be at a low logic level to enable these devices A high level at the strobe forces the W output high and the Y output low The ’LS151 features plementary W and Y outputs Features Y Select one-of-eight data lines Y Performs parallel-to-serial conversion Y Permits multiplexing from N lines to one line Y Also for use as Boolean function generator Y Typical average propagation delay time data input to W output 12 5 ns Y Typical power dissipation 30 m W Y Alternate Military Aerospace device (54LS151) is avail- able Contact a National Semiconductor Sales Office Distributor for specifications Connection Diagram Dual-In-Line Package Obsolete Truth Table TL F 6392 - 1 Order Number 54LS151DMQB 54LS151FMQB 54LS151LMQB DM54LS151J DM54LS151W DM74LS151M or DM74LS151N See NS Package Number E20A J16A M16A N16E or W16A Inputs Select CBA Strobe S XXX LLL L LH LHL L HH HL L HLH HH L HHH H L L L L L L L L H e High Level L e Low Level X e Don’t Care D0 D1 D7 e the level of the respective D input Outputs LH D0 D0 D1 D1 D2 D2 D3 D3 D4 D4 D5 D5 D6 D6 D7 D7 C1995 National Semiconductor Corporation TL F 6392 RRD-B30M105 Printed in U S A Obsolete Absolute Maximum Ratings (Note) If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Supply Voltage 7V Input Voltage 7V Operating Free Air Temperature Range DM54LS and 54LS b55 C to a125 C DM74LS 0 C to a70 C Storage Temperature Range b65 C to a150 C Note The ‘‘Absolute Maximum Ratings’’ are those values beyond which the safety of the device cannot be guaranteed The device should not be operated at these limits The parametric values defined in the ‘‘Electrical Characteristics’’ table are not guaranteed at the absolute maximum...