54F/74F14 Hex Inverter Schmitt Trigger General Description The ’F14 contains six logic inverters which accept standard TTL input signals and provide standard TTL output levels. They are capable of transforming slowly changing input signals into sharply defined, jitter-free output signals. In addition, they have a greater noise margin than conventional inverters. Each circuit contains a Schmitt trigger followed by a Darlington level shifter and a phase splitter driving a TTL totempole output. The Schmitt trigger uses positive feed back to effectively speed-up slow input transition, and provide different input threshold voltages for positive and negative-going transitions. This hysteresis between the positive-going and negative-going input thresholds (typically 800 mV) is determined internally by resistor ratios and is essentially insensitive to temperature and supply voltage variations. Features Y Y Commercial Military Guaranteed 4000V minimum ESD protection Standard Military Drawing Ð 5962-88752 Package Number Package Description N14A 14-Lead (0.300× Wide) Molded Dual-In-Line J14A 14-Lead Ceramic Dual-In-Line 74F14SC (Note 1) M14A 14-Lead (0.150× Wide) Molded Small Outline, JEDEC 74F14SJ (Note 1) M14D 14-Lead (0.300× Wide) Molded Small Outline, EIAJ 54F14FM (Note 2) W14B 14-Lead Cerpack 54F14LM (Note 2) E20A 20-Lead Ceramic Leadless Chip Carrier, Type C 74F14PC 54F14DM (Note 2) 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 Symbol Connection Diagrams Pin Assignment DIP, SOIC and Flatpak IEEE/IEC Pin Assignment for LCC TL/F/9461 – 1 TL/F/9461 – 2 TL/F/9461–3 TRI-STATEÉ is a registered trademark of National Semiconductor Corporation. C1995 National Semiconductor Corporation TL/F/9461 RRD-B30M75/Printed in U. S. A. 54F/74F14 Hex Inverter Schmitt Trigger December 1994 Unit Loading/Fan Out 54F/74F Pin Names Description In On Input Output U.L. HIGH/LOW Input IIH/IIL Output IOH/IOL 1.0/1.0 50/33.3 20 mA/b0.6 mA b 1 mA/20 mA Function Table Input Output A O L H H L H e HIGH Voltage Level L e LOW Voltage Level 2 Absolute Maximum Ratings (Note 1) Recommended Operating Conditions If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/Distributors for availability and specifications. Storage Temperature b 65§ C to a 150§ C Ambient Temperature under Bias Junction Temperature under Bias VCC Pin Potential to Ground Pin b 55§ C to a 125§ C Free Air Ambient Temperature Military Commercial Supply Voltage Military Commercial b 55§ C to a 175§ C 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 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-STATEÉ 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 54F/74F Parameter Min Typ Max Units VCC 5.0V Conditions VT a Positive-Going Threshold 1.5 1.7 2.0 V VTb Negative-Going Threshold 0.7 0.9 1.1 V 5.0V DVT Hysteresis (VT a – VTb) 0.4 0.8 V 5.0V VCD Input Clamp Diode Voltage V Min IIN e b18 mA VOH Output HIGH Voltage 54F 10% VCC 74F 10% VCC 74F 5% VCC V Min IOH e b1 mA IOH e b1 mA IOH e b1 mA VOL Output LOW Voltage 54F 10% VCC 74F 10% VCC 0.5 0.5 V Min IOL e 20 mA IOL e 20 mA IIH Input HIGH Current 54F 74F 20.0 5.0 mA Max VIN e 2.7V IBVI Input HIGH Current Breakdown Test 54F 74F 100 7.0 mA Max VIN e 7.0V ICEX Output HIGH Leakage Current 54F 74F 250 50 mA Max VOUT e VCC VID Input Leakage Test 74F V Max IID e 1.9 mA All Other Pins Grounded IOD Output Leakage Circuit Current 74F mA 0.0 VIOD e 150 mV All Other Pins Grounded IIL Input LOW Current IOS Output Short-Circuit Current ICCH ICCL b 1.2 2.5 2.5 2.7 4.75 3.75 b 0.6 mA Max VIN e 0.5V b 150 mA Max VOUT e 0V Power Supply Current 25 mA Max VO e HIGH Power Supply Current 25 mA Max VO e LOW b 60 3 AC Electrical Characteristics Symbol tPLH tPHL Parameter Propagation Delay In x On 74F 54F 74F TA e a 25§ C VCC e a 5.0V CL e 50 pF TA, VCC e Mil CL e 50 pF TA, VCC e Com CL e 50 pF Min Max Min Max Min Max 4.0 3.5 10.5 8.5 4.0 3.5 13.0 10.0 4.0 3.5 11.5 9.0 Units ns 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 14 S Temperature Range Family 74F e Commercial 54F e Military C X Special Variations QB e Military grade device with environmental and burn-in processing X e Devices shipped in 13× reels 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 Temperature Range C e Commercial (0§ C to a 70§ C) M e Military (b55§ C to a 125§ C) 4 Physical Dimensions inches (millimeters) 20-Terminal Ceramic Leadless Chip Carrier (L) NS Package Number E20A 5 Physical Dimensions inches (millimeters) (Continued) 14-Lead Ceramic Dual-In-Line Package (D) NS Package Number J14A 14-Lead (0.150× Wide) Molded Small Outline Package, JEDEC (S) NS Package Number M14A 6 Physical Dimensions inches (millimeters) (Continued) 14-Lead (0.300× Wide) Molded Small Outline Package, EIAJ (SJ) NS Package Number M14D 14-Lead (0.300× Wide) Molded Dual-In-Line Package (P) NS Package Number N14A 7 54F/74F14 Hex Inverter Schmitt Trigger Physical Dimensions inches (millimeters) (Continued) 14-Lead Ceramic Flatpak (F) NS Package Number W14B 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. 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