54F251ADM

54F 74F251A 8-Input Multiplexer with TRI-STATE Outputs November 1994 54F 74F251A 8-Input Multiplexer with TRI-STATE Outputs General Description The ’F251A is a high-speed 8-input digital multiplexer It provides in one package the ability to select one bit of data from up to eight sources It can be used as a universal function generator to generate any logic function of four variables Both assertion and negation outputs are provided Features Y Y Y Multifunctional capability On-chip select logic decoding Inverting and non-inverting TRI-STATE outputs Commercial 74F251APC Military Package Number N16E Package Description 16-Lead (0 300 Wide) Molded Dual-In-Line 16-Lead Ceramic Dual-In-Line 16-Lead (0 150 Wide) Molded Small Outline JEDEC 16-Lead (0 300 Wide) Molded Small Outline EIAJ 16-Lead Cerpack 20-Lead Ceramic Leadless Chip Carrier Type C 54F251ADM (Note 2) 74F251ASC (Note 1) 74F251ASJ (Note 1) 54F251AFM (Note 2) 54F251ALL (Note 2) J16A M16A M16D W16A E20A 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 Pin Assignment for DIP SOIC and Flatpak Pin Assignment for LCC TL F 9504–3 IEEE IEC TL F 9504 – 1 TL F 9504 – 2 TL F 9504–5 TRI-STATE is a registered trademark of National Semiconductor Corporation C1995 National Semiconductor Corporation TL F 9504 RRD-B30M75 Printed in U S A Unit Loading Fan Out 54F 74F Pin Names Description UL HIGH LOW 10 10 10 10 10 10 150 40 (33 3) 150 40 (33 3) Input IIH IIL Output IOH IOL 20 mA b0 6 mA 20 mA b0 6 mA 20 mA b0 6 mA b 3 mA 24 mA (20 mA) b 3 mA 24 mA (20 mA) S0 – S2 OE I0 – I7 Z Z Select Inputs TRI-STATE Output Enable Input (Active LOW) Multiplexer Inputs TRI-STATE Multiplexer Output Complementary TRI-STATE Multiplexer Output Functional Description This device is a logical implementation of a single-pole 8position switch with the switch position controlled by the state of three Select inputs S0 S1 S2 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 I2  S0  S1  S2 a I3  S0  S1  S2 a I4  S0  S1  S2 a I5  S0  S1  S2 a I6  S0  S1  S2 a I7  S0  S1  S2) When the Output Enable is HIGH both outputs are in the high impedance (High Z) state This feature allows multiplexer 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 impedance state to avoid high currents that would exceed the maximum ratings The Output Enable signals should be designed to ensure there is no overlap in the active LOW portion of the enable voltages Truth Table Inputs OE H L L L L L L L L S2 X L L L L H H H H S1 X L L H H L L H H S0 X L H L H L H L H Outputs Z Z I0 I1 I2 I3 I4 I5 I6 I7 Z Z I0 I1 I2 I3 I4 I5 I6 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 2 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 Ambient Temperature under Bias Junction Temperature under Bias Plastic VCC Pin Potential to Ground Pin Input Voltage (Note 2) Input Current (Note 2) Voltage Applied to Output in HIGH State (with VCC e 0V) Standard Output TRI-STATE Output b 65 C to a 150 C b 55 C to a 125 C b 55 C to a 175 C b 55 C to a 150 C b 0 5V to a 7 0V b 0 5V to a 7 0V b 30 mA to a 5 0 mA Current Applied to Output in LOW State (Max) twice the rated IOL (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 Commercial Supply Voltage Military Commercial b 55 C to a 125 C 0 C to a 70 C a 4 5V to a 5 5V a 4 5V to a 5 5V b 0 5V to VCC b 0 5V to a 5 5V DC Electrical Characteristics Symbol VIH VIL VCD VOH Parameter Min Input HIGH Voltage Input LOW Voltage Input Clamp Diode Voltage Output HIGH Voltage 54F 10% VCC 54F 10% VCC 74F 10% VCC 74F 10% VCC 74F 5% VCC 74F 5% VCC 54F 10% VCC 74F 10% VCC 54F 74F 54F 74F 54F 74F 74F 74F 4 75 3 75 b0 6 54F 74F Typ Max Units V 08 b1 2 VCC Conditions Recognized as a HIGH Signal Recognized as a LOW Signal 20 V V Min IIN e b18 mA IOH IOH IOH IOH IOH IOH e e e e e e b 1 mA b 3 mA b 1 mA b 3 mA b 1 mA b 3 mA 25 24 25 24 27 27 05 05 20 0 50 100 70 250 50 V Min VOL IIH IBVI ICEX VID IOD IIL IOZH IOZL IOS IZZ ICCL ICCZ Output LOW Voltage Input HIGH Current Input HIGH Current Breakdown Test Output HIGH Leakage Current Input Leakage Test Output Leakage Circuit Current Input LOW Current Output Leakage Current Output Leakage Current V mA mA mA V mA mA mA mA mA mA mA mA Min Max Max Max 00 00 Max Max Max Max 0 0V Max Max IOL e 20 mA IOL e 24 mA VIN e 2 7V VIN e 7 0V VOUT e VCC IID e 1 9 mA All Other Pins Grounded VIOD e 150 mV All Other Pins Grounded VIN e 0 5V VOUT e 2 7V VOUT e 0 5V VOUT e 0V VOUT e 5 25V VO e LOW VO e HIGH Z 50 b 50 b 60 b 150 Output Short-Circuit Current Bus Drainage Test Power Supply Current Power Supply Current 500 15 16 22 24 3 AC Electrical Characteristics 74F Symbol Parameter Min tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPZH tPZL tPHZ tPLZ tPZH tPZL tPHZ tPLZ Propagation Delay Sn to Z Propagation Delay Sn to Z Propagation Delay In to Z Propagation Delay In to Z Output Enable Time OE to Z Output Disable Time OE to Z Output Enable Time OE to Z Output Disable Time OE to Z 35 32 45 40 30 15 35 35 25 25 25 15 35 35 20 15 TA e a 25 C VCC e a 5 0V CL e 50 pF Typ 60 50 75 60 50 25 50 55 43 43 40 30 50 55 38 30 Max 90 75 10 5 85 65 40 70 70 60 60 55 45 70 75 55 45 54F TA VCC e Mil CL e 50 pF Min 35 32 35 30 25 15 25 35 20 25 25 15 30 35 20 15 Max 11 5 80 14 0 10 5 80 60 90 90 70 75 60 50 85 90 55 55 74F TA VCC e Com CL e 50 pF Min 35 32 45 40 30 15 25 35 25 25 25 15 30 35 20 15 Max 95 75 12 5 90 70 50 80 75 70 65 60 45 75 80 55 45 ns ns ns ns Units ns ns 4 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 Temperature Range Family 74F e Commercial 54F e Military Device Type Package Code P e Plastic DIP D e Ceramic DIP F e Flatpak L e Leadless Chip Carrier (LCC) S e Small Outline SOIC JEDEC SJ e Small Outline SOIC EIAJ 251A S C X Special Variations QB e Military grade device with environmental and burn-in processing X e Devices shipped in 13 reel Temperature Range C e Commercial (0 C to a 70 C) M e Military (b55 C to a 125 C) Physical Dimensions inches (millimeters) 20-Lead Ceramic Leadless Chip Carrier (L) NS Package Number E20A 5 Physical Dimensions inches (millimeters) (Continued) 16-Lead Ceramic Dual-In-Line Package (D) NS Package Number J16A 16-Lead (0 150 Wide) Molded Small Outline Package JEDEC (S) NS Package Number M16A 6 Physical Dimensions inches (millimeters) (Continued) 16-Lead (0 300 Wide) Molded Small Outline Package EIAJ (SJ) NS Package Number M16D 16-Lead (0 300 Wide) Molded Dual-In-Line Package (P) NS Package Number N16E 7 54F 74F251A 8-Input Multiplexer with TRI-STATE Outputs Physical Dimensions inches (millimeters) (Continued) 16-Lead Ceramic Flatpak (F) NS Package Number W16A 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 systems which (a) are intended for surgical implant into the body or (b) support or sustain life and whose 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 National Semiconductor Corporation 2900 Semiconductor Drive P O Box 58090 Santa Clara CA 95052-8090 Tel 1(800) 272-9959 TWX (910) 339-9240 National Semiconductor GmbH Livry-Gargan-Str 10 D-82256 F4urstenfeldbruck Germany Tel (81-41) 35-0 Telex 527649 Fax (81-41) 35-1 National Semiconductor Japan Ltd Sumitomo Chemical Engineering Center Bldg 7F 1-7-1 Nakase Mihama-Ku Chiba-City Ciba Prefecture 261 Tel (043) 299-2300 Fax (043) 299-2500 2 A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system or to affect its safety or effectiveness National Semiconductor Hong Kong Ltd 13th Floor Straight Block Ocean Centre 5 Canton Rd Tsimshatsui Kowloon Hong Kong Tel (852) 2737-1600 Fax (852) 2736-9960 National Semiconductores Do Brazil Ltda Rue Deputado Lacorda Franco 120-3A Sao Paulo-SP Brazil 05418-000 Tel (55-11) 212-5066 Telex 391-1131931 NSBR BR Fax (55-11) 212-1181 National Semiconductor (Australia) Pty Ltd Building 16 Business Park Drive Monash Business Park Nottinghill Melbourne Victoria 3168 Australia Tel (3) 558-9999 Fax (3) 558-9998 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