SN5414, SN54LS14,

SN7414, SN74LS14

HEX SCHMITT-TRIGGER INVERTERS

SDLS049B – DECEMBER 1983 – REVISED FEBRUARY 2002

8

POST OFFICE BOX 655303

Figure 3

–25

–50

–75

1.64

1.62

1.61

1.60

025

50

1.66

1.67

POSITIVE-GOING THRESHOLD VOLTAGE

vs

FREE-AIR TEMPERATURE

1.70

75

100

125

1.65

1.63

TA – Free-Air Temperature – °C

VCC = 5 V

1.68

1.69

Figure 4

–25

–50

–75

0.84

0.82

0.81

0.80

025

50

0.86

0.87

NEGATIVE-GOING THRESHOLD VOLTAGE

vs

FREE-AIR TEMPERATURE

0.90

75

100

125

0.85

0.83

TA – Free-Air Temperature – °C

VCC = 5 V

0.88

0.89

–25

–50

–75

790

770

760

750

025

50

810

820

HYSTERESIS

vs

FREE-AIR TEMPERATURE

850

75

100

125

800

780

TA – Free-Air Temperature – °C

VCC = 5 V

830

840

Figure 5

† Data for temperatures below 0

°C and above 70°C and supply voltage below 4.75 V and above 5.25 V are applicable for SN5414 only.