SL74LS14
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 SL74LS14N Plastic SL74LS14D 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
SLS
System Logic Semiconductor
SL74LS14
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 High Level Input Current VCC = max, VIN = 2.7 V VCC = max, VIN = 7.0 V IIL IO ICC Low Level Input Current Output Short Circuit Current Supply Current Total with outputs high Total with outputs low 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 µA mA mA mA mA Min 0.5 1.4 0.4 -1.5 Max 1 1.9 Unit V V V V V V
SLS
System Logic Semiconductor
SL74LS14
Note 1: Not more than one output should be shorted at a time, and the duration should not exceed one second.
SLS
System Logic Semiconductor
SL74LS14
AC ELECTRICAL CHARACTERISTICS (TA = 25°C, VCC = 5.0 V, CL = 15 pF,
RL = 2 kΩ, t r = 15 ns, t f = 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
SLS
System Logic Semiconductor
