SN74LS14

http://onsemi.com

2

DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)

Limits

Symbol

Parameter

Min

Typ

Max

Unit

Test Conditions

VT+

Positive-Going Threshold Voltage

1.5

2.0

V

VCC = 5.0 V

VT–

Negative-Going Threshold Voltage

0.6

1.1

V

VCC = 5.0 V

VT+–VT–

Hysteresis

0.4

0.8

V

VCC = 5.0 V

VIK

Input Clamp Diode Voltage

–0.65

–1.5

V

VCC = MIN, IIN = –18 mA

VOH

Output HIGH Voltage

2.7

3.4

V

VCC = MIN, IOH = –400 µA, VIN = VIL

VOL

Output LOW Voltage

0.25

0.4

V

VCC = MIN, IOL = 4.0 mA, VIN = 2.0 V

VOL

Output LOW Voltage

0.35

0.5

V

VCC = MIN, IOL = 8.0 mA, VIN = 2.0 V

IT+

Input Current at Positive-Going Threshold

–0.14

mA

VCC = 5.0 V, VIN = VT+

IT–

Input Current at Negative-Going Threshold

–0.18

mA

VCC = 5.0 V, VIN = VT–

IIH

Input HIGH Current

1.0

20

µA

VCC = MAX, VIN = 2.7 V

IIH

Input HIGH Current

0.1

mA

VCC = MAX, VIN = 7.0 V

IIL

Input LOW Current

–0.4

mA

VCC = MAX, VIN = 0.4 V

IOS

Short Circuit Current (Note 1)

–20

–100

mA

VCC = MAX, VOUT = 0 V

ICC

Power Supply Current

Total, Output HIGH

8.6

16

mA

VCC = MAX

ICC

Total, Out ut HIGH

Total, Output LOW

12

21

mA

VCC = MAX

Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.

Symbol

Parameter

Max

Unit

Test Conditions

tPLH

Propagation Delay, Input to Output

22

ns

VCC = 5.0 V

tPHL

Propagation Delay, Input to Output

22

ns

VCC = 5.0 V

CL = 15 pF

3 V

0 V

VIN

VOUT

1.6 V

0.8 V

tPHL

1.3 V

1.3 V

tPLH

Figure 1. AC Waveforms