DM74LS154 FAIRCHILD | Alldatasheet

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Technical content

Features

■ Decodes 4 binary-coded inputs into one of 16 mutually exclusive outputs ■ Performs the demultiplexing function by distributing data from one input line to any one of 16 outputs ■ Input clamping diodes simplify system design ■ High fan-out, low-impedance, totem-pole outputs ■ Typical propagation delay 3 levels of logic 23 ns Strobe 19 ns ■ Typical power dissipation 45 mW Ordering Code: Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Connection Diagram Logic Diagram Order Number Package Number Package Description DM74LS154WM M24B 24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide DM74LS154N N24A 24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-010, 0.600 Wide

www.fairchildsemi.com 2 DM74LS154 Function Table H = HIGH Level L = Low Level X = Don't Care Inputs Outputs G 1 G 2 D C B A01234567891 01 11 21 31 41 5 L L L L L L LHHHHHHHHH H H H H H H L L L L LHHLHHHHHHHH H H H H H H L L L LHLHHLHHHHHHH H H H H H H L L L LHHHHHLHHHHHH H H H H H H L L LHL LHHHHLHHHHH H H H H H H L L LHLHHHHHHLHHHH H H H H H H L L LHHLHHHHHHLHHH H H H H H H L L LHHHHHHHHHHLHH H H H H H H L L HL L LHHHHHHHHLH H H H H H H L L HL LHHHHHHHHHHL H H H H H H L L HLHLHHHHHHHHHH L H H H H H L L HLHHHHHHHHHHHH H L H H H H L L HHL LHHHHHHHHHH H H L H H H L L HHLHHHHHHHHHHH H H H L H H L L HHHLHHHHHHHHHH H H H H L H L L HHHHHHHHHHHHHH H H H H H L L H XXXXHHHHHHHHHH H H H H H H H L XXXXHHHHHHHHHH H H H H H H H H XXXXHHHHHHHHHH H H H H H H

3 www.fairchildsemi.com DM74LS154 Absolute Maximum Ratings(Note 1) 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 tables are not guaranteed at the absolute maximum ratings. The “Recommended Operating Conditions” table will define the conditions for actual device operation. Recommended Operating Conditions

Electrical Characteristics

over recommended operating free air temperature range (unless otherwise noted) Note 2: All typicals are at VCC = 5V, TA = 25°C. Note 3: Not more than one output should be shorted at a time, and the duration should not exceed one second. Note 4: ICC is measured with all outputs OPEN and all inputs GROUNDED. Switching Characteristics at VCC = 5V and TA = 25°C Supply Voltage 7V Input Voltage 7V Operating Free Air Temperature Range 0°C to +70°C Storage Temperature Range −65°C to +150°C Symbol Parameter Min Nom Max Units V CC Supply Voltage 4.75 5 5.25 V VIH HIGH Level Input Voltage 2 V VIL LOW Level Input Voltage 0.8 V IOH HIGH Level Output Current −0.4 mA IOL LOW Level Output Current 8 mA TA Free Air Operating Temperature 0 70 °C Symbol Parameter Conditions Min Typ Max Units (Note 2) VI Input Clamp Voltage V CC = Min, II = −18 mA −1.5 V VOH HIGH Level V CC = Min, IOH = Max 2.7 3.4 V Output Voltage V IL = Max, VIH = Min VOL LOW Level V CC = Min, IOL = Max 0.25 0.4 Output Voltage V IL = Max, VIH = Min 0.35 0.5 V IOL = 4 mA, VCC = Min 0.25 0.4 II Input Current @ Max Input Voltage VCC = Max, VI = 7V 0.1 mA IIH HIGH Level Input Current V CC = Max, VI = 2.7V 20 µA IIL LOW Level Input Current V CC = Max, VI = 0.4V −0.4 mA IOS Short Circuit Output Current V CC = Max (Note 3) −20 −100 mA ICC Supply Current V CC = Max (Note 4) 9 14 mA From (Input) R L = 2 kΩ Symbol Parameter To (Output) C L = 15 pF C L = 50 pF Units Min Max Min Max tPLH Propagation Delay Time Data to Output 30 35 ns LOW-to-HIGH Level Output tPHL Propagation Delay Time Data to Output 30 35 ns HIGH-to-LOW Level Output tPLH Propagation Delay Time Strobe to Output 20 25 ns LOW-to-HIGH Level Output tPHL Propagation Delay Time Strobe to Output 25 35 ns HIGH-to-LOW Level Output

www.fairchildsemi.com 4 DM74LS154 Physical Dimensions inches (millimeters) unless otherwise noted 24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide Package Number M24B

5 www.fairchildsemi.com DM74LS154 4-Line to 16-Line Decoder/Demultiplexer Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-010, 0.600 Wide Package Number N24A 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. 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: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be rea- sonably expected to result in a significant injury to the user. 2. A critical component in any component of a life support device or system whose failure to perform can be rea- sonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.fairchildsemi.com