4.4 Electrical Characteristics

PARAMETER

TEST

CONDITIONS(1)

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

6

4.2

4.2

4.2

VIL

Low level input

voltage

2

0.5

0.5

0.5

V

4.5

1.35

1.35

1.35

6

1.8

1.8

1.8

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

IOH = – 20 μA

6

5.9

5.9

5.9

High level output

voltage

IOH = – 4 mA

4.5

3.98

3.84

3.7

IOH = – 5.2 mA

6

5.48

5.34

5.2

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

IOL = 20 μA

6

0.1

0.1

0.1

Low level output

voltage

IOL = 4 mA

4.5

0.26

0.33

0.4

IOL = 5.2 mA

6

0.26

0.33

0.4

V

II

Input leakage

current

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 μA

4.5

3.98

3.84

3.7

VOL

Low level output

voltage

IOL = 20 μA

4.5

0.1

0.1

0.1

V

Low level output

voltage

IOL = 4 μA

4.5

0.26

0.33

0.4

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

(2) (3)

Additional supply

current per input pin

Date Shift-In (1,2)

4.5 to

5.5

100

108

135

147

μA

CLR

4.5 to

5.5

100

324

405

441

μA

CLK

4.5 to

5.5

100

252

315

343

μA

(1)

VI = VIH or VIL, unless otherwise noted.

(2)

This is the increase in supply current for each input that is at one of the specified TTL voltage levels, rather than 0 V or VCC.

(3)

Inputs held at VCC – 2.1.

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SCHS155E – NOVEMBER 1998 – REVISED MAY 2024

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