MC54/74HC14A

High–Speed CMOS Logic Data

DL129 — Rev 6

3

MOTOROLA

VCC

V

Guaranteed Limit

Symbol

Parameter

Condition

VCC

V

–55 to 25

°C

≤85°C

≤125°C

Unit

VT+ max

Maximum Positive–Going Input

Threshold Voltage

(Figure 3)

Vout = 0.1V

|Iout| ≤ 20µA

2.0

3.0

4.5

6.0

1.50

2.15

3.15

4.20

1.50

2.15

3.15

4.20

1.50

2.15

3.15

4.20

V

VT+ min

Minimum Positive–Going Input

Threshold Voltage

(Figure 3)

Vout = 0.1V

|Iout| ≤ 20µA

2.0

3.0

4.5

6.0

1.0

1.5

2.3

3.0

0.95

1.45

2.25

2.95

0.95

1.45

2.25

2.95

V

VT– max

Maximum Negative–Going Input

Threshold Voltage

(Figure 3)

Vout = VCC – 0.1V

|Iout| ≤ 20µA

2.0

3.0

4.5

6.0

0.9

1.4

2.0

2.6

0.95

1.45

2.05

2.65

0.95

1.45

2.05

2.65

V

VT– min

Minimum Negative–Going Input

Threshold Voltage

(Figure 3)

Vout = VCC – 0.1V

|Iout| ≤ 20µA

2.0

3.0

4.5

6.0

0.3

0.5

0.9

1.2

0.3

0.5

0.9

1.2

0.3

0.5

0.9

1.2

V

VHmax

Note 2

Maximum Hysteresis Voltage

(Figure 3)

Vout = 0.1V or VCC – 0.1V

|Iout| ≤ 20µA

2.0

3.0

4.5

6.0

1.20

1.65

2.25

3.00

1.20

1.65

2.25

3.00

1.20

1.65

2.25

3.00

V

VHmin

Note 2

Minimum Hysteresis Voltage

(Figure 3)

Vout = 0.1V or VCC – 0.1V

|Iout| ≤ 20µA

2.0

3.0

4.5

6.0

0.20

0.25

0.40

0.50

0.20

0.25

0.40

0.50

0.20

0.25

0.40

0.50

V

VOH

Minimum High–Level Output

Voltage

Vin ≤ VT– min

|Iout| ≤ 20µA

2.0

4.5

6.0

1.9

4.4

5.9

1.9

4.4

5.9

1.9

4.4

5.9

V

Vin ≤ VT– min

|Iout| ≤ 2.4mA

|Iout| ≤ 4.0mA

|Iout| ≤ 5.2mA

3.0

4.5

6.0

2.48

3.98

5.48

2.34

3.84

5.34

2.20

3.70

5.20

VOL

Maximum Low–Level Output

Voltage

Vin ≥ VT+ max

|Iout| ≤ 20µA

2.0

4.5

6.0

0.1

0.1

0.1

0.1

0.1

0.1

0.1

0.1

0.1

V

Vin ≥ VT+ max

|Iout| ≤ 2.4mA

|Iout| ≤ 4.0mA

|Iout| ≤ 5.2mA

3.0

4.5

6.0

0.26

0.26

0.26

0.33

0.33

0.33

0.40

0.40

0.40

Iin

Maximum Input Leakage Current

Vin = VCC or GND

6.0

±0.1

±1.0

±1.0

µA

ICC

Maximum Quiescent Supply

Current (per Package)

Vin = VCC or GND

Iout = 0µA

6.0

1.0

10

40

µA

1. Information on typical parametric values along with frequency or heavy load considerations can be found in Chapter 2 of the Motorola High–

Speed CMOS Data Book (DL129/D).

2. VHmin > (VT+ min) – (VT– max); VHmax = (VT+ max) – (VT– min).