54F251ADM NSC | Alldatasheet

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Features

Y Multifunctional capability Y On-chip select logic decoding Y Inverting and non-inverting TRI-STATE outputs Commercial Military Package Package DescriptionNumber 74F251APC N16E 16-Lead (0.300 × Wide) Molded Dual-In-Line 54F251ADM (Note 2) J16A 16-Lead Ceramic Dual-In-Line 74F251ASC (Note 1) M16A 16-Lead (0.150 × Wide) Molded Small Outline, JEDEC 74F251ASJ (Note 1) M16D 16-Lead (0.300 × Wide) Molded Small Outline, EIAJ 54F251AFM (Note 2) W16A 16-Lead Cerpack 54F251ALL (Note 2) E20A 20-Lead Ceramic Leadless Chip Carrier, Type C Note 1: Devices also available in 13 × reel. Use suffix e SCX and SJX. Note 2: Military grade device with environmental and burn-in processing. Use suffix e DMQB, FMQB and LMQB. Logic Symbols Connection Diagrams TL/F/9504–3 IEEE/IEC TL/F/9504–5 Pin Assignment for DIP, SOIC and Flatpak TL/F/9504–1 Pin Assignment for LCC TL/F/9504–2 TRI-STATEÉ is a registered trademark of National Semiconductor Corporation. C1995 National Semiconductor Corporation RRD-B30M75/Printed in U. S. A.

Pin Names Description U.L. Input I IH/IIL HIGH/LOW Output I OH/IOL S0 –S2 Select Inputs 1.0/1.0 20 mA/b0.6 mA OE TRI-STATE Output Enable Input (Active LOW) 1.0/1.0 20 mA/b0.6 mA I0 –I7 Multiplexer Inputs 1.0/1.0 20 mA/b0.6 mA Z TRI-STATE Multiplexer Output 150/40 (33.3) b3 mA/24 mA (20 mA) Z Complementary TRI-STATE Multiplexer Output 150/40 (33.3) b3 mA/24 mA (20 mA) Functional Description This device is a logical implementation of a single-pole, 8- position switch with the switch position controlled by the state of three Select inputs, S 0,S 1,S 2. Both assertion and negation outputs are provided. The Output Enable input (OE ) is active LOW. When it is activated, the logic function provided at the output is: Z e OE#(I0#S0#S1 #S2 a I1#S0#S1#S2 a When the Output Enable is HIGH, both outputs are in the high impedance (High Z) state. This feature allows multi- plexer expansion by tying the outputs of up to 128 devices together. When the outputs of the TRI-STATE devices are tied together, all but one device must be in the high imped- ance state to avoid high currents that would exceed the maximum ratings. The Output Enable signals should be de- signed to ensure there is no overlap in the active LOW por- tion of the enable voltages. Truth Table Inputs Outputs OE S2 S1 S0 Z Z H XXX Z Z L LLL I 0 I0 LL L H I 1 I1 L LHL I 2 I2 LL H H I 3 I3 LH LL I 4 I4 L HLH I 5 I5 LH H L I 6 I6 L HHH I 7 I7 H e HIGH Voltage Level L e LOW Voltage Level X e Immaterial Z e High Impedance Logic Diagram TL/F/9504–4 Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays.

Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/Distributors for availability and specifications. Storage Temperature b65§Ct o a150§C Ambient Temperature under Bias b55§Ct o a125§C Junction Temperature under Bias b55§Ct o a175§C Plastic b55§Ct o a150§C VCC Pin Potential to Ground Pin b0.5V to a7.0V Input Voltage (Note 2) b0.5V to a7.0V Input Current (Note 2) b30 mA to a5.0 mA Voltage Applied to Output in HIGH State (with V CC e 0V) Standard Output b0.5V to V CC TRI-STATE Output b0.5V to a5.5V Current Applied to Output in LOW State (Max) twice the rated I OL (mA) Note 1: Absolute maximum ratings are values beyond which the device may be damaged or have its useful life impaired. Functional operation under these conditions is not implied. Note 2: Either voltage limit or current limit is sufficient to protect inputs. Recommended Operating Conditions Free Air Ambient Temperature Military b55§Ct o a125§C Commercial 0 §Ct o a70§C Supply Voltage Military a4.5V to a5.5V Commercial a4.5V to a5.5V Symbol Parameter 54F/74F Units V CC Conditions Min Typ Max VIH Input HIGH Voltage 2.0 V Recognized as a HIGH Signal VIL Input LOW Voltage 0.8 V Recognized as a LOW Signal VCD Input Clamp Diode Voltage b1.2 V Min I IN eb 18 mA VOH Output HIGH 54F 10% V CC 2.5 I OH eb 1m A Voltage 54F 10% V CC 2.4 I OH eb 3m A 74F 10% V CC 2.5 V Min IOH eb 1m A 74F 10% V CC 2.4 I OH eb 3m A 74F 5% V CC 2.7 I OH eb 1m A 74F 5% V CC 2.7 I OH eb 3m A VOL Output LOW 54F 10% V CC 0.5 V Min IOL e 20 mA Voltage 74F 10% V CC 0.5 I OL e 24 mA IIH Input HIGH 54F 20.0 mA Max VIN e 2.7V Current 74F 5.0 IBVI Input HIGH Current 54F 100 mA Max VIN e 7.0V Breakdown Test 74F 7.0 ICEX Output HIGH 54F 250 mA Max VOUT e VCC Leakage Current 74F 50 VID Input Leakage 74F 4.75 V 0.0 IID e 1.9 mA Test All Other Pins Grounded IOD Output Leakage 74F 3.75 mA 0.0 VIOD e 150 mV Circuit Current All Other Pins Grounded IIL Input LOW Current b0.6 mA Max V IN e 0.5V IOZH Output Leakage Current 50 mA Max V OUT e 2.7V IOZL Output Leakage Current b50 mA Max V OUT e 0.5V IOS Output Short-Circuit Current b60 b150 mA Max V OUT e 0V IZZ Bus Drainage Test 500 mA 0.0V V OUT e 5.25V ICCL Power Supply Current 15 22 mA Max V O e LOW ICCZ Power Supply Current 16 24 mA Max V O e HIGH Z

TA ea 25§C TA,V CC e Mil T A,V CC e ComSymbol Parameter V CC ea 5.0V CL e 50 pF C L e 50 pF Units CL e 50 pF Min Typ Max Min Max Min Max

Ordering Information

The device number is used to form part of a simplified purchasing code where the package type and temperature range are defined as follows: 74F 251A S C X Temperature Range Family Special Variations 74F e Commercial QB e Military grade device with 54F e Military environmental and burn-in processingDevice Type X e Devices shipped in 13 × reel Package Code Temperature RangeP e Plastic DIP C e Commercial (0 §Ct o a70§C)D e Ceramic DIP M e Military ( b55§Ct o a125§C)F e Flatpak L e Leadless Chip Carrier (LCC) S e Small Outline SOIC JEDEC SJ e Small Outline SOIC EIAJ Physical Dimensions inches (millimeters) 20-Lead Ceramic Leadless Chip Carrier (L)

Physical Dimensions inches (millimeters) (Continued) 16-Lead Ceramic Dual-In-Line Package (D) 16-Lead (0.150 × Wide) Molded Small Outline Package, JEDEC (S)

Physical Dimensions inches (millimeters) (Continued) 16-Lead (0.300 × Wide) Molded Small Outline Package, EIAJ (SJ) 16-Lead (0.300 × Wide) Molded Dual-In-Line Package (P)

54F/74F251A 8-Input Multiplexer with TRI-STATE Outputs Physical Dimensions inches (millimeters) (Continued) 16-Lead Ceramic Flatpak (F) 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 National Semiconductores National Semiconductor Corporation GmbH Japan Ltd. Hong Kong Ltd. Do Brazil Ltda. (Australia) Pty, Ltd. 2900 Semiconductor Drive Livry-Gargan-Str. 10 Sumitomo Chemical 13th Floor, Straight Block, Rue Deputado Lacorda Franco Building 16 P.O. Box 58090 D-82256 F 4urstenfeldbruck Engineering Center Ocean Centre, 5 Canton Rd. 120-3A Business Park Drive Santa Clara, CA 95052-8090 Germany Bldg. 7F Tsimshatsui, Kowloon Sao Paulo-SP Monash Business Park Tel: 1(800) 272-9959 Tel: (81-41) 35-0 1-7-1, Nakase, Mihama-Ku Hong Kong Brazil 05418-000 Nottinghill, Melbourne TWX: (910) 339-9240 Telex: 527649 Chiba-City, Tel: (852) 2737-1600 Tel: (55-11) 212-5066 Victoria 3168 Australia Fax: (81-41) 35-1 Ciba Prefecture 261 Fax: (852) 2736-9960 Telex: 391-1131931 NSBR BR Tel: (3) 558-9999 Tel: (043) 299-2300 Fax: (55-11) 212-1181 Fax: (3) 558-9998 Fax: (043) 299-2500 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.