54LS151 NSC | Alldatasheet

Document overview

  • Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
  • PDF pages: 6

Technical content

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 mW Y Alternate Military/Aerospace device (54LS151) is avail- able. Contact a National Semiconductor Sales Office/ Distributor for specifications. Connection Diagram Dual-In-Line Package TL/F/6392–1 Order Number 54LS151DMQB, 54LS151FMQB, 54LS151LMQB, DM54LS151J, DM54LS151W, DM74LS151M or DM74LS151N See NS Package Number E20A, J16A, M16A, N16E or W16A Truth Table Inputs Outputs Select Strobe YW CBA S XXX H L H L L L L D0 D0 L L H L D1 D1 L H L L D2 D2 L H H L D3 D3 H L L L D4 D4 H L H L D5 D5 H H L L D6 D6 H H H L D7 D7 H e High Level, L e Low Level, X e Don’t Care D0, D1...D7 e the level of the respective D input C1995 National Semiconductor Corporation RRD-B30M105/Printed in U. S. A.

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§Ct o a125§C DM74LS 0 §Ct o a70§C Storage Temperature Range b65§Ct o a150§C Note: The ‘‘Absolute Maximum Ratings’’ are those values beyond which the safety of the device cannot be guaran- teed. 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 ratings. The ‘‘Recommended Operating Conditions’’ table will define the conditions for actual device operation. Recommended Operating Conditions Symbol Parameter DM54LS151 DM74LS151 Units Min Nom Max Min Nom Max VCC Supply Voltage 4.5 5 5.5 4.75 5 5.25 V VIH High Level Input Voltage 2 2 V VIL Low Level Input Voltage 0.7 0.8 V IOH High Level Output Current b0.4 b0.4 mA IOL Low Level Output Current 4 8 mA TA Free Air Operating Temperature b55 125 0 70 §C Electrical Characteristics over recommended operating free air temperature range (unless otherwise noted) Symbol Parameter Conditions Min Typ Max Units(Note 1) VI Input Clamp Voltage V CC e Min, I I eb 18 mA b1.5 V VOH High Level Output V CC e Min, I OH e Max DM54 2.5 3.4 VVoltage V IL e Max, V IH e Min DM74 2.7 3.4 VOL Low Level Output V CC e Min, I OL e Max DM54 0.25 0.4 Voltage V IL e Max, V IH e Min DM74 0.35 0.5 V IOL e 4 mA, V CC e Min DM74 0.25 0.4 II Input Current @ Max V CC e Max, V I e 7V 0.1 mAInput Voltage IIH High Level Input Current V CC e Max, V I e 2.7V 20 mA IIL Low Level Input Current V CC e Max, V I e 0.4V b0.4 mA IOS Short Circuit V CC e Max DM54 b20 b100 mAOutput Current (Note 2) DM74 b20 b100 ICC Supply Current V CC e Max (Note 3) 6 10 mA Note 1: All typicals are at V CC e 5V, T A e 25§C. Note 2: Not more than one output should be shorted at a time, and the duration should not exceed one second. Note 3: ICC is measured with all outputs open, strobe and data select inputs at 4.5V, and all other inputs open.

Switching Characteristics at V CC e 5V and T A e 25§C (See Section 1 for Test Waveforms and Output Load) From (Input) RL e 2k X Symbol Parameter To (output) CL e 15 pF C L e 50 pF Units Min Max Min Max tPLH Propagation Delay Time Select 43 46 nsLow to High Level Output (4 Levels) to Y tPHL Propagation Delay Time Select 30 36 nsHigh to Low Level Output (4 Levels) to Y tPLH Propagation Delay Time Select 23 25 nsLow to High Level Output (3 Levels) to W tPHL Propagation Delay Time Select 32 40 nsHigh to Low Level Output (3 Levels) to W tPLH Propagation Delay Time Strobe 42 44 nsLow to High Level Output to Y tPHL Propagation Delay Time Strobe 32 40 nsHigh to Low Level Output to Y tPLH Propagation Delay Time Strobe 24 27 nsLow to High Level Output to W tPHL Propagation Delay Time Strobe 30 36 nsHigh to Low Level Output to W tPLH Propagation Delay Time D0 thru D7 32 35 nsLow to High Level Output to Y tPHL Propagation Delay Time D0 thru D7 26 33 nsHigh to Low Level Output to Y tPLH Propagation Delay Time D0 thru D7 21 25 nsLow to High Level Output to W tPHL Propagation Delay Time D0 thru D7 20 27 nsHigh to Low Level Output to W Logic Diagram LS151 TL/F/6392–2 See Address Buffers to the Right Address Buffers for 54LS151/74LS151 TL/F/6392–3

Physical Dimensions inches (millimeters) Ceramic Leadless Chip Carrier Package (E) Order Number 54LS151LMQB Ceramic Dual-In-Line Package (J) Order Number 54LS151DMQB or DM54LS151J

Physical Dimensions inches (millimeters) (Continued) 16-Lead Small Outline Molded Package (M) Order Number DM74LS151M 16-Lead Molded Dual-In-Line Package (N) Order Number DM74LS151N

54LS151/DM54LS151/DM74LS151 Data Selector/Multiplexer Physical Dimensions inches (millimeters) (Continued) 16-Lead Ceramic Flat Package (W) Order Number 54LS151FMQB or DM54LS151W LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or 2. A critical component is any component of a life systems which, (a) are intended for surgical implant support device or system whose failure to perform can into the body, or (b) support or sustain life, and whose be reasonably expected to cause the failure of the life failure to perform, when properly used in accordance support device or system, or to affect its safety or with instructions for use provided in the labeling, can effectiveness. be reasonably expected to result in a significant injury to the user. National Semiconductor National Semiconductor National Semiconductor National Semiconductor Corporation Europe Hong Kong Ltd. Japan Ltd.

1111 West Bardin Road Fax: (

a49) 0-180-530 85 86 13th Floor, Straight Block, Tel: 81-043-299-2309 Arlington, TX 76017 Email: cnjwge @ tevm2.nsc.com Ocean Centre, 5 Canton Rd. Fax: 81-043-299-2408 Tel: 1(800) 272-9959 Deutsch Tel: ( a49) 0-180-530 85 85 Tsimshatsui, Kowloon Fax: 1(800) 737-7018 English Tel: ( a49) 0-180-532 78 32 Hong Kong Fran3ais Tel: ( a49) 0-180-532 93 58 Tel: (852) 2737-1600 Italiano Tel: ( a49) 0-180-534 16 80 Fax: (852) 2736-9960 National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.