DM74ALS151 DS006203-1 DM74ALS151M DM74ALS151N DS006203 DM74ALS 74ALS DS006203-2

1 of 8 Line Data Selector/Multiplexer General Description Features This Data Selector/Multiplexer contains full on-chip decoding

DM74ALS151 DM74ALS151 1 of 8 Line Data Selector/Multiplexer General Description Features This Data Selector/Multiplexer contains full on-chip decoding to select one-of-eight data sources as a result of a unique three-bit binary code at the Select inputs. Two complementary outputs provide both inverting and non-inverting buffer operation. A Strobe input is provided which, when at the high level, disables all data inputs and forces the Y output to the low state and the W output to the high state. The Select input buffers incorporate internal overlap features to ensure that select input changes do not cause invalid output transients. n Advanced oxide-isolated, ion-implanted Schottky TTL process n Switching performance is guaranteed over full temperature and VCC supply range n Pin and functional compatible with LS family counterpart n Improved output transient handling capability Connection Diagram Function Table Inputs Dual-In-Line Package Select Outputs Strobe Y W C B A S X X X 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 = High Level, L = Low Level, X = Don't Care D0 thru D7 = the level of the respective D input DS006203-1 DS006203-1 Order Number DM74ALS151M DM74ALS151M or DM74ALS151N DM74ALS151N See Package Number M16A or N16A © 1998 Fairchild Semiconductor Corporation DS006203 DS006203 www.fairchildsemi.com DM74ALS151 DM74ALS151 1 of 8 Line Data Selector/Multiplexer February 1998 Absolute Maximum Ratings (Note 1) Supply Voltage Input Voltage Operating Free Air Temperature Range DM74ALS DM74ALS Storage Temperature Range Typical JA N Package M Package 7V 7V -65°C to +150°C 78.0°C/W 107.0°C/W 0°C to +70°C Recommended Operating Conditions Symbol Parameter DM74ALS151 DM74ALS151 Units Min Nom Max 4.5 5 5.5 V VCC Supply Voltage VIH High Level Input Voltage VIL Low Level Input Voltage 0.8 V IOH High Level Output Current -2.6 mA IOL Low Level Output Current 24 mA TA Free Air Operating Temperature 70 °C 2 V 0 Note 1: 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 ratings. The "Recommended Operating Conditions" table will define the conditions for actual device operation. Electrical Characteristics over recommended operating free-air temperature range. All typical values are measured at VCC = 5V, TA = 25°C. Symbol Parameter VIK Input Clamp Voltage VOH High Level Output Voltage VOL Low Level Output Conditions VCC = 4.5V, IIN = -18 mA VCC = 4.5V, IOH = Max IOH = -400 µA, VCC = 4.5V to 5.5V VCC = 4.5V 74ALS 74ALS Typ Max -1.5 2.4 3.2 Units V V VCC - 2 V 0.5 0.35 V VCC = 5.5V, VIN = 7V 0.1 mA VCC = 5.5V, VIN = 2.7V VCC = 5.5V, VIN = 0.4V VCC = 5.5V, VOUT = 2.25V 20 µA -0.1 mA IOL = 24 mA Voltage II Min Input Current at Max Input Voltage IIH High Level Input Current IIL Low Level Input Current IO Output Drive Current ICC Supply Current -30 -112 VCC = 5.5V All Inputs = 4.5V mA 12 mA 7.5 Switching Characteristics over recommended operating free air temperature range (Note 2) Symbol Parameter Conditions From To DM74ALS151 DM74ALS151 Min tPLH Propagation Delay Time Low to High Level Output tPHL Propagation Delay Time VCC = 4.5V to 5.5V CL = 50 pF RL = 500 Units Max Select Y 4 18 ns Select Y 8 24 ns Select W 7 24 ns Select W 7 23 ns Data Y 3 10 ns High to Low Level Output tPLH Propagation Delay Time Low to High Level Output tPHL Propagation Delay Time High to Low Level Output tPLH Propagation Delay Time Low to High Level Output www.fairchildsemi.com 2 Switching Characteristics (Continued) over recommended operating free air temperature range (Note 2) Symbol Parameter Conditions From To DM74ALS151 DM74ALS151 Min tPHL Propagation Delay Time Data Y 5 15 Data W 3 15 ns Data W 4 15 ns Strobe Y 4 18 ns Strobe Y 4 19 ns Strobe W 5 19 ns Strobe W 5 23 ns High to Low Level Output tPLH Units Max Propagation Delay Time ns Low to High Level Output tPHL Propagation Delay Time High to Low Level Output tPLH Propagation Delay Time Low to High Level Output tPHL Propagation Delay Time High to Low Level Output tPLH Propagation Delay Time Low to High Level Output tPHL Propagation Delay Time High to Low Level Output Note 2: See Section 1 for test waveforms and output load. 3 www.fairchildsemi.com Logic Diagram DS006203-2 DS006203-2 www.fairchildsemi.com 4 Physical Dimensions inches (millimeters) unless otherwise noted S.O. Package (M) Order Number DM74ALS151M DM74ALS151M Package Number M16A Molded Dual-In-Line Package (N) Order Number DM74ALS151N DM74ALS151N Package Number N16A 5 www.fairchildsemi.com DM74ALS151 DM74ALS151 1 of 8 Line Data Selector/Multiplexer LIFE SUPPORT POLICY FAIRCHILD'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 FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 2. A critical component in any component of a life support 1. Life support devices or systems are devices or sysdevice or system whose failure to perform can be reatems which, (a) are intended for surgical implant into sonably expected to cause the failure of the life support the body, or (b) support or sustain life, and (c) whose device or system, or to affect its safety or effectiveness. failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. Fairchild Semiconductor Corporation Americas Customer Response Center Tel: 1-888-522-5372 www.fairchildsemi.com Fairchild Semiconductor Europe Fax: +49 (0) 1 80-530 85 86 Email: europe.support@nsc.com Deutsch Tel: +49 (0) 8 141-35-0 English Tel: +44 (0) 1 793-85-68-56 Italy Tel: +39 (0) 2 57 5631 Fairchild Semiconductor Hong Kong Ltd. 13th Floor, Straight Block, Ocean Centre, 5 Canton Rd. Tsimshatsui, Kowloon Hong Kong Tel: +852 2737-7200 Fax: +852 2314-0061 National Semiconductor Japan Ltd. Tel: 81-3-5620-6175 Fax: 81-3-5620-6179 Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications.