74ACT273B datasheet(5/11 Pages) STMICROELECTRONICS

5 / 11 page

AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, RL = 500

Ω, Input tr =tf =3 ns)

Symb ol

Parameter

T est Con ditio n

Valu e

Un it

VCC

(V)

TA =25

-40 to 85

Min.

T yp.

Max.

Mi n.

Max.

tPLH

tPHL

Propagation Delay Time

CK to Q

5.0

(*)

1.5

6.5

8.5

1.5

9.0

tPLH

tPHL

Propagation Delay Time

CLR to Q

5.0

(*)

1.5

7.0

9.0

1.5

9.5

twL

CLR pulse Width, LOW

5.0

(*)

1.5

4.0

CK pulse Width

5.0

(*)

1.0

4.0

Setup Time Q to CK

HIGH or LOW

5.0

(*)

1.0

3.5

Hold Time Q to CK

HIGH or LOW

5.0

(*)

-0.5

1.5

tREM

Recovery Time CLR to

5.0

(*)

0.5

3.0

fMAX

Maximum Clock

Frequency

5.0

(*)

125

190

110

MHz

(*) Voltage range is 5V

± 0.5V

CAPACITIVE CHARACTERISTICS

Symb ol

Parameter

Test Co nditi ons

Valu e

Un it

VCC

(V)

TA =25

-40 to 85

Min.

T yp.

Max.

Mi n.

Max.

CIN

Input Capacitance

5.0

CPD

Power Dissipation

Capacitance (note 1)

5.0

fIN =10 MHz

1) CPD isdefined as the value of the IC’sinternal equivalent capacitance which is calculated fromthe operating current consumption without load. (Referto

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

• VCC • fIN +ICC/n(per circuit)

74ACT273

5/11

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