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| TECHNICAL DATA IN74LS14 Hex Schmitt-Trigger Inverter 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 INFORMATION IN74LS14N Plastic IN74LS14D SOIC TA = 0 to 70 C for all packages LOGIC DIAGRAM PIN ASSIGNMENT FUNCTION TABLE Inputs A L H PIN 14 =VCC PIN 7 = GND Output Y H L 1 IN74LS14 MAXIMUM RATINGS* Symbol VCC VIN VOUT Tstg * Parameter Supply Voltage Input Voltage Output Voltage Storage Temperature Range Value 7.0 7.0 5.5 -65 to +150 Unit V V V C Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Recommended Operating Conditions. RECOMMENDED OPERATING CONDITIONS Symbol VCC IOH IOL TA Supply Voltage High Level Output Current Low Level Output Current Ambient Temperature Range 0 Parameter Min 4.75 Max 5.25 -15 24 +70 Unit V mA mA C DC ELECTRICAL CHARACTERISTICS over full operating conditions Guaranteed Limit Symbol VT+ VT- VT+ - VTVIK VOH VOL Parameter Positive-Going Input Threshold Voltage Negative-Going Input Threshold Voltage Hysteresis Input Clamp Voltage High Level Output Voltage Low Level Output Voltage Test Conditions VCC = 5 V VCC = 5 V VCC = 5 V VCC = min, IIN = -18 mA VCC = min, IOH = -0.4 mA, VI=0.5 V VCC = min, IOL = 4 mA VI=1.9 V VCC = min, IOL = 8 mA VI=1.9 V IIH IIL IO ICC High Level Input Current Low Level Input Current Output Short Circuit Current Supply Current Total with outputs high Total with outputs low VCC = max, VIN = 2.7 V VCC = max, VIN = 7.0 V VCC = max, VIN = 0.4 V VCC = max, VO =0 V (Note 1) VCC = max -20 2.7 0.4 0.5 20 0.1 -0.4 -100 16 21 A mA mA mA mA Min 0.5 1.4 0.4 -1.5 Max 1 1.9 Unit V V V V V V Note 1: Not more than one output should be shorted at a time, and the duration should not exceed one second. 2 IN74LS14 AC ELECTRICAL CHARACTERISTICS (TA = 25C, VCC = 5.0 V, CL = 15 pF, RL = 2 k, tr = 15 ns, tf = 6.0 ns) Symbol tPLH tPHL Parameter Propagation Delay, Input A to Output Y Propagation Delay, Input A to Output Y Min Max 22 22 Unit ns ns Figure 1. Switching Waveforms NOTES A. CL includes probe and jig capacitance. B. All diodes are 1N916 or 1N3064. Figure 2. Test Circuit 3 |
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