M74HC280 datasheet(5/10 Pages) STMICROELECTRONICS

Il numero della parte	M74HC280

Spiegazioni elettronici	9 BIT PARITY GENERATOR

PDF	10 Pages

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Produttore elettronici	STMICROELECTRONICS [STMicroelectronics]

Homepage	http://www.st.com

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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

(CLOCK - Q)

2.0

200

250

290

4.5

6.0

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

TEST CIRCUIT ICC (Opr.)

SWITCHING CHARACTERISTICS TEST

WAVEFORM

INPUT WAVEFORM IS THE SAME AS THAT IN CASE OF

SWITCHING CHARACTERISTICS TEST.

M54/M74HC280

5/10

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