74F2244PC

54F 74F2244 Octal Buffer Line Driver with 25X Series Resistors in Outputs August 1995 54F 74F2244 Octal Buffer Line Driver with 25X Series Resistors in Outputs General Description The ’F2244 is an octal buffer line driver designed to drive the capacitive inputs of MOS memory drivers address drivers clock drivers and bus-oriented transmitters receivers The 25X series resistors in the outputs reduce ringing and eliminate the need for external resistors Features Y Y Y Y Y TRI-STATE outputs drive bus lines or buffer memory address registers 12 mA source current 25X series resistors in outputs eliminate the need for external resistors Designed to drive the capacitive inputs of MOS devices Guaranteed 4000V minimum ESD protection Commercial 74F2244PC Military Package Number N20B Package Description 20-Lead (0 300 Wide) Molded Dual-In-Line 20-Lead Ceramic Dual-In-Line 20-Lead (0 300 Wide) Molded Small Outline JEDEC 20-Lead Molded Shrink Small Outline EIAJ Type II 20-Lead Cerpak 20-Lead Ceramic Leadless Chip Carier Type C 54F2244DM (Note 2) 74F2244SC (Note 1) 74F2244MSA (Note 1) 54F2244FM (Note 2) 54F2244LM (Note 2) Note 1 Devices also available in 13 J20A M20B MSA20 W20A E20A reel Use suffix e SCX and MSAX Note 2 Military grade device with environmental and burn-in processing Use suffix e DMQB FMQB and LMQB Connection Diagrams Pin Assignment for LCC ’F2244 Pin Assignment for DIP SOIC and SSOP ’F2244 TL F 9499 – 3 TL F 9499 – 4 TRI-STATE is a registered trademark of National Semiconductor Corporation C1995 National Semiconductor Corporation TL F 9499 RRD-B30M105 Printed in U S A Logic Symbol IEEE IEC ’F2244 TL F 9499 – 6 Unit Loading Fan Out 54F 74F Pin Names Description UL HIGH LOW 1 0 1 667 1 0 1 667 1 0 2 667 750 20 Input IIH IIL Output IOH IOL 20 mA b1 mA 20 mA b1 mA 20 mA b1 6 mA b 15 mA 12 mA OE1 OE2 OE2 Ian Ibn Oan Obn Worst-case ’F2244 disabled TRI-STATE Output Enable Input (Active LOW) TRI-STATE Output Enable Input (Active HIGH) Inputs Outputs Truth Table ’F2244 OE1 H L L Ian X H L Oan Z H L OE2 H L L Ibn X H L Obn Z H L H e HIGH Voltage Level L e LOW Voltage Level X e Immaterial Z e High Impedance 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 24 20 24 20 27 0 50 0 75 54F 74F 54F 74F 54F 74F 74F 74F 4 75 3 75 b1 0 b1 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 e e e e e b 3 mA b 12 mA b 3 mA b 15 mA b 3 mA V Min VOL IIH IBVI ICEX VID IOD IIL IOZH IOZL IOS 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 Output Leakage Current Output Leakage Current Output Short-Circuit Current Power Supply Current Power Supply Current Power Supply Current b 100 V mA mA mA V mA mA mA mA mA mA mA mA Min Max Max Max 00 00 Max Max Max Max Max Max Max IOL e 1 mA IOL e 12 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 (OE1 OE2 OE2) VIN e 0 5V (In) VOUT e 2 7V VOUT e 0 5V VOUT e 0V VO e HIGH VO e LOW VO e HIGH Z 20 0 50 100 70 250 50 50 b 50 b 225 40 60 60 3 60 90 90 AC Electrical Characteristics 74F Symbol Parameter Min tPLH tPHL tPZH tPZL tPHZ tPLZ Propagation Delay Data to Output Output Enable Time Output Disable Time 15 25 15 25 15 15 TA e a 25 C VCC e a 5 0V CL e 50 pF Typ Max 70 80 90 11 5 90 85 54F TA VCC e Mil CL e 50 pF Min 20 20 20 20 20 20 Max 65 70 70 85 70 75 74F TA VCC e Com CL e 50 pF Min 15 20 10 25 10 15 Max 70 80 95 12 0 95 95 ns Units ns Ordering Information The device number is used to form part of a simplified purchasing code where a 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 S e Small Outline Package (SOIC) MSA e Shrink Small Outline Package SOIC EIAJ Type II (74F244 only) L e Leadless Chip Carrier (LCC) F e Flatpak 2244 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) 4 5 Physical Dimensions inches (millimeters) 20-Lead Ceramic Leadless Chip Carrier Type C (L) NS Package Number E20A 20-Lead Ceramic Dual-In-Line Package (D) NS Package Number J20A 6 Physical Dimensions inches (millimeters) (Continued) 20-Lead Molded Shrink Small Outline Package EIAJ Type II (MSA) NS Package Number MSA20 20-Lead (0 300 Wide) Molded Dual-In-Line Package (P) NS Package Number N20B 7 54F 74F2244 Octal Buffer Line Driver with 25X Series Resistors in Outputs Physical Dimensions inches (millimeters) (Continued) 20-Lead Cerpak (F) NS Package Number W20A 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 1111 West Bardin Road Arlington TX 76017 Tel 1(800) 272-9959 Fax 1(800) 737-7018 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 Europe Fax (a49) 0-180-530 85 86 Email cnjwge tevm2 nsc com Deutsch Tel (a49) 0-180-530 85 85 English Tel (a49) 0-180-532 78 32 Fran ais Tel (a49) 0-180-532 93 58 Italiano Tel (a49) 0-180-534 16 80 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 Semiconductor Japan Ltd Tel 81-043-299-2309 Fax 81-043-299-2408 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