Revised March 2000 DM74LS14 Hex Inverter with Schmitt Trigger Inputs General Description This device contains six independent gates each of which performs the logic INVERT function. Each input has hysteresis which increases the noise immunity and transforms a slowly changing input signal to a fast changing, jitter free output. Ordering Code: Order Number Package Number Package Description DM74LS14M M14A 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow DM74LS14SJ M14D 14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide DM74LS14N 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. Connection Diagram Function Table Y=A Input Output A Y L H H L H = HIGH Logic Level L = LOW Logic Level © 2000 Fairchild Semiconductor Corporation DS006353 www.fairchildsemi.com DM74LS14 Hex Inverter with Schmitt Trigger Inputs August 1986 DM74LS14 Absolute Maximum Ratings(Note 1) Supply Voltage Note 1: The “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the absolute maximum ratings. The “Recommended Operating Conditions” table will define the conditions for actual device operation. 7V Input Voltage 7V 0°C to +70°C Operating Free Air Temperature Range −65°C to +150°C Storage Temperature Range Recommended Operating Conditions Min Nom Max VCC Symbol Supply Voltage Parameter 4.75 5 5.25 Units V VT+ Positive-Going Input Threshold Voltage (Note 2) 1.4 1.6 1.9 V VT− Negative-Going Input Threshold Voltage (Note 2) 0.5 0.8 1 V HYS Input Hysteresis (Note 2) 0.4 0.8 IOH HIGH Level Output Current −0.4 mA IOL LOW Level Output Current 8 mA TA Free Air Operating Temperature 70 °C V 0 Note 2: VCC = 5V. Electrical Characteristics over recommended operating free air temperature range (unless otherwise noted) Symbol Parameter Conditions VI Input Clamp Voltage VCC = Min, II = −18 mA VOH HIGH Level VCC = Min, IOH = Max Output Voltage VIL = Max VOL IT+ LOW Level VCC = Min, IOL = Max Output Voltage VIH = Min Input Current at Min Typ (Note 3) 2.7 Max Units −1.5 V 3.4 V 0.35 0.5 VCC = Min, IOL = 4 mA 0.25 0.4 VCC = 5V, VI = VT+ −0.14 mA VCC = 5V, VI = VT− −0.18 mA V Positive-Going Threshold IT− Input Current at Negative-Going Threshold II Input Current @ Max Input Voltage VCC = Max, VI = 7V 0.1 IIH HIGH Level Input Current VCC = Max, VI = 2.7V 20 µA IIL LOW Level Input Current VCC = Max, VI = 0.4V −0.4 mA IOS Short Circuit Output Current VCC = Max (Note 4) −100 mA ICCH Supply Current with Outputs HIGH VCC = Max 8.6 16 mA ICCL Supply Current with Outputs LOW VCC = Max 12 21 mA −20 mA Note 3: All typicals are at VCC = 5V, TA = 25°C. Note 4: Not more than one output should be shorted at a time, and the duration should not exceed one second. Switching Characteristics at VCC = 5V and TA = 25°C RL = 2 kΩ Symbol tPLH CL = 15 pF Parameter Propagation Delay Time LOW-to-HIGH Level Output tPHL Propagation Delay Time HIGH-to-LOW Level Output www.fairchildsemi.com 2 CL = 50 pF Units Min Max Min Max 5 22 8 25 ns 5 22 10 33 ns DM74LS14 Physical Dimensions inches (millimeters) unless otherwise noted 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow Package Number M14A 3 www.fairchildsemi.com DM74LS14 Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide Package Number M14D www.fairchildsemi.com 4 DM74LS14 Hex Inverter with Schmitt Trigger Inputs Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Package Number N14A Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications. LIFE SUPPORT POLICY FAIRCHILD’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 FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 2. A critical component in 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. 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 (c) 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. www.fairchildsemi.com 5 www.fairchildsemi.com