5-25

FAST AND LS TTL DATA

SN54/74LS13

• SN54/74LS14

Symbol

Parameter

Limits

Unit

Test Conditions

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

54

2.5

3.4

V

VCC = MIN, IOH = – 400 µA, VIN = VIL

VOH

Output HIGH Voltage

74

2.7

3.4

V

VCC = MIN, IOH = – 400 µA, VIN = VIL

VOL

Output LOW Voltage

54, 74

0.25

0.4

V

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

VOL

Output LOW Voltage

74

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

Total, Output LOW

LS13

2.9

6.0

mA

VCC = MAX

ICC

Total, Output HIGH

Total, Output LOW

LS14

8.6

16

mA

VCC = MAX

ICC

Total, Output LOW

LS13

4.1

7.0

mA

VCC = MAX

Total, Output LOW

LS14

12

21

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

Symbol

Parameter

LS13

LS14

Unit

Test Conditions

tPLH

Propagation Delay, Input to Output

22

22

ns

VCC = 5.0 V

CL = 15 pF

tPHL

Propagation Delay, Input to Output

27

22

ns

VCC = 5.0 V

CL = 15 pF

Figure 1. AC Waveforms

3 V

0 V

VIN

VOUT

1.6 V

0.8 V

tPHL

1.3 V

1.3 V

tPLH