54LS158W

54LS157 NSC | Alldatasheet

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Y Buffered inputs and outputs Y Typical Propagation Time LS157 9 ns LS158 7 ns Y Typical Power Dissipation LS157 49 mW LS158 24 mW Y Alternate Military/Aerospace device (54LS157, 54LS158) is available. Contact a National Semiconduc- tor Sales Office/Distributor for specifications. Connection Diagrams Dual-In-Line Package TL/F/6396–1 Order Number 54LS157DMQB, 54LS157FMQB, 54LS157LMQB, DM54LS157J, DM54LS157W, DM74LS157M or DM74LS157N See NS Package Number E20A, J16A, M16A, N16E or W16A Dual-In-Line Package TL/F/6396–2 Order Number 54LS158DMQB, 54LS158FMQB, 54LS158LMQB, DM54LS158J, DM54LS158W, DM74LS158M or DM74LS158N See NS Package Number E20A, J16A, M16A, N16E or W16A Function Table Inputs Output Y Strobe Select A B LS157 LS158 HX X X L H LL L X L H LL H X H L LH X L L H LH X H H L H e High Level, L e Low Level, X e Don’t Care 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 DM54LS157 DM74LS157 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 ’LS157 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 S or G 0.2 mAInput Voltage V I e 7V Ao rB 0 . 1 IIH High Level Input V CC e Max S or G 40 mACurrent V I e 2.7V Ao rB 2 0 IIL Low Level Input V CC e M a x So rG b0.8 mACurrent V I e 0.4V Ao rB b0.4 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) 9.7 16 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 4.5V applied to all inputs and all outputs open.

’LS157 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 Data 14 18 nsLow to High Level Output to Y tPHL Propagation Delay Time Data 14 23 nsHigh to Low Level Output to Y tPLH Propagation Delay Time Strobe 20 24 nsLow to High Level Output to Y tPHL Propagation Delay Time Strobe 21 30 nsHigh to Low Level Output to Y tPLH Propagation Delay Time Select 23 28 nsLow to High Level Output to Y tPHL Propagation Delay Time Select 27 32 nsHigh to Low Level Output to Y Recommended Operating Conditions Symbol Parameter DM54LS158 DM74LS158 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 ’LS158 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 S or G 0.2 mAInput Voltage V I e 7V Ao rB 0 . 1 IIH High Level Input V CC e Max S or G 40 mACurrent V I e 2.7V Ao rB 2 0 IIL Low Level Input V CC e M a x So rG b0.8 mACurrent V I e 0.4V Ao rB b0.4 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) 4.8 8 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 4.5V applied to all inputs and all outputs open.

’LS158 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 Data 12 18 nsLow to High Level Output to Y tPHL Propagation Delay Time Data 12 21 nsHigh to Low Level Output to Y tPLH Propagation Delay Time Strobe 17 23 nsLow to High Level Output to Y tPHL Propagation Delay Time Strobe 18 28 nsHigh to Low Level Output to Y tPLH Propagation Delay Time Select 20 24 nsLow to High Level Output to Y tPHL Propagation Delay Time Select 24 36 nsHigh to Low Level Output to Y Logic Diagrams LS157 TL/F/6396–3 LS158 TL/F/6396–4

Physical Dimensions inches (millimeters) Ceramic Leadless Chip Carrier Package (E) Order Number 54LS157LMQB or 54LS158LMQB 16-Lead Ceramic Dual-In-Line Package (J) Order Number 54LS157DMQB, 54LS158DMQB, DM54LS157J or DM54LS158J

Physical Dimensions inches (millimeters) (Continued) 16-Lead Small Outline Molded Package (M) Order Number DM74LS157M or DM74LS158M 16-Lead Molded Dual-In-Line Package (N) Order Number DM74LS157N or DM74LS158N

54LS157/DM54LS157/DM74LS157, 54LS158/DM54LS158/DM74LS158 Quad 2-Line to 1-Line Data Selectors/Multiplexers Physical Dimensions inches (millimeters) (Continued) 16-Lead Ceramic Flat Package (W) Order Number 54LS157FMQB, 54LS158FMQB, DM54LS157W or DM54LS158W 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.

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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.