5.4 Electrical Characteristics

PARAMETER

TEST

CONDITIONS(2)

VCC

(V)

25

℃

-40

℃ to 85℃

-55

℃ to 125℃

UNIT

MIN

TYP

MAX

MIN

MAX

MIN

MAX

HC TYPES

VIH

High level input

voltage

2

1.5

1.5

1.5

V

4.5

3.15

3.15

3.15

V

6

4.2

4.2

4.2

V

VIL

Low level input

voltage

2

0.5

0.5

0.5

V

4.5

1.35

1.35

1.35

V

6

1.8

1.8

1.8

V

VOH

High level output

voltage

IOH = – 20 μA

2

1.9

1.9

1.9

V

IOH = – 20 μA

4.5

4.4

4.4

4.4

V

IOH = – 20 μA

6

5.9

5.9

5.9

V

High level output

voltage

IOH = – 4 mA

4.5

3.98

3.84

3.7

V

IOH = – 5.2 mA

6

5.48

5.34

5.2

V

VOL

Low level output

voltage

IOL = 20 μA

2

0.1

0.1

0.1

V

IOL = 20 μA

4.5

0.1

0.1

0.1

V

IOL = 20 μA

6

0.1

0.1

0.1

V

Low level output

voltage

IOL = 4 mA

4.5

0.26

0.33

0.4

V

IOL = 5.2 mA

6

0.26

0.33

0.4

V

II

Input leakage

current

VI = VCC or GND

6

±0.1

±1

±1

μA

ICC

Supply current

VI = VCC or GND

6

8

80

160

μA

HCT TYPES

VIH

High level input

voltage

4.5 to

5.5

2

2

2

V

VIL

Low level input

voltage

4.5 to

5.5

0.8

0.8

0.8

V

VOH

High level output

voltage

IOH = – 20 μA

4.5

4.4

4.4

4.4

V

High level output

voltage

IOH = – 4 mA

4.5

3.98

3.84

3.7

V

VOL

Low level output

voltage

IOL = 20 μA

4.5

0.1

0.1

0.1

V

Low level output

voltage

IOL = 4 mA

4.5

0.26

0.33

0.4

V

II

Input leakage

current

VI = VCC or GND

5.5

±0.1

±1

±1

μA

ICC

Supply current

VI = VCC or GND

5.5

8

80

160

μA

ΔICC (1)

Additional supply

current per input

pin

DS, D0-D7 inputs

held at VCC – 2.1

V

4.5 to

5.5

100

72

90

98

μA

PE input held at

VCC – 2.1 V

4.5 to

5.5

100

126

157.5

171.5

CP, CE inputs held

at VCC – 2.1 V

4.5 to

5.5

100

180

225

245

MR inputs held at

VCC – 2.1 V

4.5 to

5.5

100

72

90

98

(1)

For dual-supply systems theoretical worst case (VI = 2.4 V, VCC = 5.5 V) specification is 1.8 mA.

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CD54HC166, CD54HCT166, CD74HC166, CD74HCT166

SCHS157D – FEBRUARY 1998 – REVISED FEBRUARY 2022

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