M54HC11 datasheet(4/9 Pages) STMICROELECTRONICS

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AC ELECTRICAL CHARACTERISTICS (CL =50 pF, Input tr =tf =6 ns)

Symbol

Parameter

Test Conditions

Value

Unit

VCC

(V)

TA =25

54HC and 74HC

-40 to 85

74HC

-55 to 125

54HC

Min.

Typ.

Max.

Min.

Max.

Min.

Max.

tTLH

tTHL

Output Transition

Time

2.0

110

4.5

151922

6.0

131619

tPLH

tPHL

Propagation

Delay Time

2.0

105

130

4.5

6.0

141822

CIN

Input Capacitance

CPD (*)

Power Dissipation

Capacitance

(*) 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 operting current can be obtained by the following equation. ICC(opr) = CPD

•VCC •fIN +ICC/3 (per Gate)

SWITCHING CHARACTERISTICS TEST CIRCUIT

INPUT WAVEFORM IS THE SAVE AS THAT IN CASE OF SWITCHING CHARACTERISTICS TEST.

TEST CIRCUIT ICC (Opr.)

M54/M74HC11

4/9

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