M74HC14

Electrical characteristics

DocID1901 Rev 5

7/15

Table 7: Capacitive characteristics

Sym.

Parameter

Test condition

Value

Value

VCC (V)

TA = 25 °C

-40 to

85 °C

-55 to

125 °C

Typ

Max

Max

Max

CIN

Input capacitance

5.0

5

10

10

10

pF

CPD

Power dissipation capacitance

(1)

fIN = 10 MHz

28

Notes:

(1)CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current

consumption without load (refer to test circuit). Average operating current can be obtained by the following equation:

ICC(opr) = CPD x VCC x fIN + ICC/6(per gate)

Figure 3: Test circuit

Figure 4: Waveform: propagation delay times (f = 1 MHz, 50 % duty cycle)