74F257ASCSJX

54F 74F257A Quad 2-Input Multiplexer with TRI-STATE Outputs November 1994 54F 74F257A Quad 2-Input Multiplexer with TRI-STATE Outputs General Description The ’F257A is a quad 2-input multiplexer with TRI-STATE outputs Four bits of data from two sources can be selected using a Common Data Select input The four outputs present the selected data in true (non-inverted) form The outputs may be switched to a high impedance state with a HIGH on the common Output Enable (OE) input allowing the outputs to interface directly with bus-oriented systems Features Y Y Y Y Multiplexer expansion by tying outputs together Non-inverting TRI-STATE outputs Input clamp diodes limit high-speed termination effects Guaranteed 4000V minimum ESD protection Commercial 74F257APC 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 54F257ADM (Note 2) 74F257ASC (Note 1) 74F257ASJ (Note 1) 54F257AFM (Note 2) 54F257ALL (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 9507–3 IEEE IEC TL F 9507 – 1 TL F 9507 – 2 TL F 9507–5 TRI-STATE is a registered trademark of National Semiconductor Corporation C1995 National Semiconductor Corporation TL F 9507 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 10 10 150 40 (33 3) Input IIH IIL Output IOH IOL 20 mA b0 6 mA 20 mA b0 6 mA 20 mA b0 6 mA 20 mA b0 6 mA b 3 mA 24 mA (20 mA) S OE I0a – I0d I1a – I1d Za – Zd Common Data Select Input TRI-STATE Output Enable Input (Active LOW) Data Inputs from Source 0 Data Inputs from Source 1 TRI-STATE Multiplexer Outputs Functional Description The ’F257A is a quad 2-input multiplexer with TRI-STATE outputs It selects four bits of data from two sources under control of a Common Data Select input When the Select input is LOW the I0x inputs are selected and when Select is HIGH the I1x inputs are selected The data on the selected inputs appears at the outputs in true (non-inverted) form The device is the logic implementation of a 4-pole 2-position switch where the position of the switch is determined by the logic levels supplied to the Select input The logic equation for the outputs is shown below Zn e OE  (In  S a Ion  S) When the Output Enable input (OE) is HIGH the outputs are forced to a high impedance OFF state If the outputs 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 the Output Enable signals to TRI-STATE devices whose outputs are tied together are designed so there is no overlap Truth Table Output Enable OE H L L L L H e HIGH Voltage Level L e LOW Voltage Level X e Immaterial Z e High Impedance Select Input S X H H L L I0 X X X L H Data Inputs I1 X L H X X Output Z Z L H L H Logic Diagram TL F 9507 – 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 b 65 C to a 150 b 55 C to a 125 b 55 C to a 175 b 55 C to a 150 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 C C C C b 0 5V to a 7 0V b 0 5V to a 7 0V Input Voltage (Note 2) b 30 mA to a 5 0 mA Input Current (Note 2) Voltage Applied to Output in HIGH State (with VCC e 0V) b 0 5V to VCC Standard Output b 0 5V to a 5 5V TRI-STATE Output Current Applied to Output in LOW State (Max) twice the rated IOL (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 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 20 08 b1 2 Units V V V VCC Conditions Recognized as a HIGH Signal Recognized as a LOW Signal 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 ICCH 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 V mA mA mA V mA mA mA mA mA mA mA mA mA Min Max Max Max 00 00 Max Max Max Max 0 0V Max 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 HIGH VO e LOW VO e HIGH Z Output Leakage Current Output Leakage Current Output Short-Circuit Current Bus Drainage Test Power Supply Current Power Supply Current Power Supply Current 90 14 5 15 b 60 50 b 50 b 150 500 15 22 23 3 AC Electrical Characteristics 74F Symbol Parameter Min tPLH tPHL tPLH tPHL tPZH tPZL tPHZ tPLZ Propagation Delay In to Zn Propagation Delay S to Zn Output Enable Time Output Disable Time 25 20 40 25 20 25 20 20 TA e a 25 C VCC e a 5 0V CL e 50 pF Typ 45 42 50 65 59 55 43 45 Max 55 55 95 70 60 70 60 60 54F TA VCC e Mil CL e 50 pF Min 20 15 35 25 20 25 20 20 Max 70 70 11 5 90 80 90 70 85 74F TA VCC e Com CL e 50 pF Min 20 20 35 25 20 25 20 20 Max 60 60 10 5 80 70 80 70 70 ns ns Units 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 Ceramic Chip Carrier (LCC) S e Small Outline SOIC JEDEC SJ e Small Outline SOIC EIAJ 257A S C X Special Variations X e Devices shipped in 13 reels QB e Military grade with environmental and burn-in processing shipped in tubes 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 74F257A Quad 2-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