M74HC08

Electrical characteristics

Table 7: AC electrical characteristics (CL = 50 pF, input tr = tf = 6 ns)

Symbol

Parameter

Test

condition

Value

Unit

TA = 25°C

-40 to

85°C

-55 to

125°C

VCC (V)

Min.

Typ.

Max.

Min.

Max.

Min.

Max.

tTLH tTHL

Output

transition time

2.0

30

75

95

110

ns

4.5

8

15

19

22

6.0

7

13

16

19

tPLH

tPHL

Propagation

delay time

2.0

24

75

95

110

ns

4.5

8

15

19

22

6.0

7

13

16

19

Table 8: Capacitive characteristics

Symbol

Parameter

Test

condition

Value

Unit

TA = 25°C

-40 to 85°C

-55 to

125°C

VCC (V)

Min.

Typ.

Max.

Min.

Max.

Min.

Max.

CIN

Input

capacitance

5.0

5

10

10

10

pF

CPD

Power

dissipation

capacitance

(1)

5.0

19

pF

Notes:

(1)C

PD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the

operating current consumption without load (refer to the test circuit). The average operating current

can be obtained by the following equation: ICC(opr) = CPD x VCC x fIN + ICC/4 (per gate).

DocID001885 Rev 2

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