54F 74F253 Dual 4-Input Multiplexer with TRI-STATE Outputs
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1 54F 74F253 Dual 4-Input Multiplexer with TRI-STATE Outputs General Description The F253 is a dual 4-input multiplexer with TRI-STATE outputs It can select two bits of data from four sources using common select inputs The output may be individually switched to a high impedance state with a HIGH on the respective Output Enable (OE) inputs allowing the outputs to interface directly with bus oriented systems Commercial Military Package Number Features Y Y Y Multifunction capability Non-inverting TRI-STATE outputs Guaranteed 4000V minimum ESD protection Package Description 74F253PC N16E 16-Lead (0 300 Wide) Molded Dual-In-Line 54F253DM (Note 2) J16A 16-Lead Ceramic Dual-In-Line November F253SC (Note 1) M16A 16-Lead (0 150 Wide) Molded Small Outline JEDEC 74F253SJ (Note 1) M16D 16-Lead (0 300 Wide) Molded Small Outline EIAJ 54F253FM (Note 2) W16A 16-Lead Cerpack 54F253LL (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 Pin Assignment for DIP SOIC and Flatpak Connection Diagrams Pin Assignment for LCC 54F 74F253 Dual 4-Input Multiplexer with TRI-STATE Outputs TL F IEEE IEC TL F TL F TL F TRI-STATE is a registered trademark of National Semiconductor Corporation C1995 National Semiconductor Corporation TL F 9505 RRD-B30M75 Printed in U S A
2 Unit Loading Fan Out 54F 74F Pin Names Description U L Input I IH I IL HIGH LOW Output I OH I OL I 0a I 3a Side A Data Inputs ma b0 6 ma I 0b I 3b Side B Data Inputs ma b0 6 ma S 0 S 1 Common Select Inputs ma b0 6 ma OE a Side A Output Enable Input (Active LOW) ma b0 6 ma OE b Side B Output Enable Input (Active LOW) ma b0 6 ma Z a Z b TRI-STATE Outputs (33 3) b3 ma 24 ma (20 ma) Functional Description This device contains two identical 4-input multiplexers with TRI-STATE outputs They select two bits from four sources selected by common Select inputs (S 0 S 1 ) The 4-input multiplexers have individual Output Enable (OE a OE b ) inputs which when HIGH force the outputs to a high impedance (High Z) state This device is the logic implementation of a 2-pole 4-position switch where the position of the switch is determined by the logic levels supplied to the two select inputs The logic equations for the outputs are shown below Z a e OE a (I 0a S 1 S 0 a I 1a S 1 S 0 a I 2a S 1 S 0 a I 3a S 1 S 0 ) Z b e OE b (I 0b S 1 S 0 a I 1b S 1 S 0 a I 2b S 1 S 0 a I 3b S 1 S 0 ) If the outputs of 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 Designers should ensure that Output Enable signals to TRI- STATE devices whose outputs are tied together are designed so that there is no overlap Logic Diagram Truth Table Select Inputs Data Inputs Output Enable Output S 0 S 1 I 0 I 1 I 2 I 3 OE Z X X X X X X H Z L L L X X X L L L L H X X X L H H L X L X X L L H L X H X X L H L H X X L X L L L H X X H X L H H H X X X L L L H H X X X H L H Address inputs S 0 and S 1 are common to both sections H e HIGH Voltage Level L e LOW Voltage Level X e Immaterial Z e High Impedance TL F Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays 2
3 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 Ctoa150 C Ambient Temperature under Bias b55 Ctoa125 C Junction Temperature under Bias b55 Ctoa175 C Plastic b55 Ctoa150 C V CC 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 DC Electrical Characteristics Symbol Parameter 54F 74F Min Typ Max Current Applied to Output in LOW State (Max) twice the rated I OL (ma) ESD Last Passing Voltage (Min) 4000V 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 b55 Ctoa125 C 0 Ctoa70 C a4 5V to a5 5V a4 5V to a5 5V Units V CC Conditions V IH Input HIGH Voltage 2 0 V Recognized as a HIGH Signal V IL Input LOW Voltage 0 8 V Recognized as a LOW Signal V CD Input Clamp Diode Voltage b1 2 V Min I IN eb18 ma V OH Output HIGH 54F 10% V CC 2 5 I OH eb1ma Voltage 54F 10% V CC 2 4 I OH eb3ma 74F 10% V CC 2 5 I V Min OH eb1ma 74F 10% V CC 2 4 I OH eb3ma 74F 5% V CC 2 7 I OH eb1ma 74F 5% V CC 2 7 I OH eb3ma V OL Output LOW 54F 10% V CC 0 5 I V Min OL e 20 ma Voltage 74F 10% V CC 0 5 I OL e 24 ma I IH Input HIGH 54F 20 0 Current 74F 5 0 ma Max V IN e 2 7V I BVI Input HIGH Current 54F 100 Breakdown Test 74F 7 0 I CEX Output HIGH 54F 250 Leakage Current 74F 50 V ID I OD Input Leakage Test Output Leakage Circuit Current ma Max 74F 4 75 V F 3 75 ma 0 0 V IN e 7 0V ma Max V OUT e V CC I IL Input LOW Current b0 6 ma Max V IN e 0 5V I ID e 1 9 ma All Other Pins Grounded V IOD e 150 mv All Other Pins Grounded I OZH Output Leakage Current 50 ma Max V OUT e 2 7V I OZL Output Leakage Current b50 ma Max V OUT e 0 5V I OS Output Short-Circuit Current b60 b150 V ma Max OUT e 0V b100 b225 V OUT e 0V I ZZ Bus Drainage Test 500 ma 0 0V V OUT e V CC I CCH Power Supply Current ma Max V O e HIGH I CCL Power Supply Current ma Max V O e LOW I CCZ Power Supply Current ma Max V O e HIGH Z 3
4 AC Electrical Characteristics 74F 54F 74F Symbol Parameter T A ea25 C T A V CC e Mil T A V CC e Com V CC ea5 0V C L e 50 pf C L e 50 pf C L e 50 pf Min Typ Max Min Max Min Max t PLH Propagation Delay t PHL S n to Z n t PLH Propagation Delay t PHL I n to Z n t PZH Output Enable Time t PZL t PHZ Output Disable Time t PLZ Units ns ns ns 4
5 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 253 S C X 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 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 Ctoa70 C) M e Military (b55 Ctoa125 C) Physical Dimensions inches (millimeters) 20-Lead Ceramic Leadless Chip Carrier (L) NS Package Number E20A 5
6 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
7 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
8 54F 74F253 Dual 4-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 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 D F4urstenfeldbruck Engineering Center Ocean Centre 5 Canton Rd 120-3A Business Park Drive Santa Clara CA Germany Bldg 7F Tsimshatsui Kowloon Sao Paulo-SP Monash Business Park Tel 1(800) Tel (81-41) Nakase Mihama-Ku Hong Kong Brazil Nottinghill Melbourne TWX (910) Telex Chiba-City Tel (852) Tel (55-11) Victoria 3168 Australia Fax (81-41) 35-1 Ciba Prefecture 261 Fax (852) Telex NSBR BR Tel (3) Tel (043) Fax (55-11) Fax (3) Fax (043) 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
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