74F14SCX ON Semiconductor

74F14 Hex Inverter Schmitt Trigger March 1988 Revised November 2005 74F14 Hex Inverter Schmitt Trigger totem-pole output. The Schmitt trigger uses positive feed General Description back to effectively speed-up slow input transition, and pro- The 74F14 contains six logic inverters which accept stan- vide different input threshold voltages for positive and neg- dard TTL input signals and provide standard TTL output ative-going transitions. This hysteresis between the levels. They are capable of transforming slowly changing positive-going and negative-going input thresholds (typi- input signals into sharply defined, jitter-free output signals. cally 800 mV) is determined internally by resistor ratios and In addition, they have a greater noise margin than conven- is essentially insensitive to temperature and supply voltage tional inverters. variations. Each circuit contains a Schmitt trigger followed by a Dar- lington level shifter and a phase splitter driving a TTL Ordering Code: Order Number Package Number Package Description 74F14SC M14A 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow 74F14SJ M14D Pb-Free 14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 74F14PC N14A 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Devices also available in Tape and Reel. Specify by appending the suffix letter X to the ordering code. Logic Symbol Connection Diagram IEEE/IEC Unit Loading/Fan Out Function Table U.L. Input I /I Input Output IH IL Pin Names Description Output I /I HIGH/LOW AO OH OL I Input 1.0/1.0 20 A/0.6 mA LH n O Output 50/33.3 1 mA/20 mA HL n H = HIGH Voltage Level L = LOW Voltage Level 2005 Fairchild Semiconductor Corporation DS009461 www.fairchildsemi.comAbsolute Maximum Ratings(Note 1) Recommended Operating Conditions Storage Temperature 65C to +150C Ambient Temperature under Bias 55C to +125C Free Air Ambient Temperature 0C to +70C Junction Temperature under Bias 55C to +175C Supply Voltage +4.5V to +5.5V V Pin Potential to Ground Pin 0.5V to +7.0V CC Input Voltage (Note 2) 0.5V to +7.0V Input Current (Note 2) 30 mA to +5.0 mA Voltage Applied to Output in HIGH State (with V = 0V) CC Standard Output 0.5V to V Note 1: Absolute maximum ratings are values beyond which the device CC may be damaged or have its useful life impaired. Functional operation 3-STATE Output 0.5V to +5.5V under these conditions is not implied. Current Applied to Output Note 2: Either voltage limit or current limit is sufficient to protect inputs. in LOW State (Max) twice the rated I (mA) OL ESD Last Passing Voltage (Min) 4000V DC Electrical Characteristics V Symbol Parameter Min Typ Max Units Conditions CC V Positive-Going Threshold 1.5 1.7 2.0 V 5.0V T+ V Negative-Going Threshold 0.7 0.9 1.1 V 5.0V T V Hysteresis (V V ) 0.4 0.8 V 5.0V T T+ T V Input Clamp Diode Voltage 1.2 V Min I = 18 mA CD IN V Output HIGH 10% V 2.5 I = 1 mA OH CC OH VMin Voltage 5% V 2.7 I = 1 mA CC OH V Output LOW 10% V OL CC 0.5 V Min I = 20 mA OL Voltage I Input HIGH IH 5.0 AMax V = 2.7V IN Current I Input HIGH Current BVI 7.0 AMax V = 7.0V IN Breakdown Test I Output HIGH CEX 50 AMax V = V OUT CC Leakage Current V Input Leakage I = 1.9 A ID ID 4.75 V Max Test All Other Pins Grounded I Output Leakage V = 150 mV OD IOD 3.75 A0.0 Circuit Current All Other Pins Grounded I Input LOW Current 0.6 mA Max V = 0.5V IL IN I Output Short-Circuit Current 60 150 mA Max V = 0V OS OUT I Power Supply Current 25 mA Max V = HIGH CCH O I Power Supply Current 25 mA Max V = LOW CCL O AC Electrical Characteristics T = +25CT = 55C to +125CT = 0C to +70C A A A V = +5.0V V = +5.0V V = +5.0V CC CC CC Symbol Parameter Units C = 50 pF C = 50 pF C = 50 pF L L L Min Max Min Max Min Max t Propagation Delay 4.0 10.5 4.0 13.0 4.0 11.5 PLH ns t I O 3.5 8.5 3.5 10.0 3.5 9.0 PHL n n www.fairchildsemi.com 2 74F14