CD74FCT273M datasheet(4/7 Pages) TI

部件名	CD74FCT273M

功能描述	BiCMOS FCT Interface Logic, Octal D Flip-Flop with Reset

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制造商	TI [Texas Instruments]

网页	http://www.ti.com

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4

Switching Speciﬁcations Over Operating Range FCT Series tr, tf = 2.5ns, CL = 50pF, RL (Figure 4) (Note 6)

PARAMETER

SYMBOL

VCC (V)

25oC0oC TO 70oC

UNITS

TYP

MIN

MAX

Propagation Delays

CP to Qn

tPLH, tPHL

572

13

ns

MR to Qn

tPLH, tPHL

582

13

ns

Power Dissipation Capacitance

CPD

(Note 7)

-36-

-

pF

Input Capacitance

CI

---

10

pF

NOTES:

6. 5V: Min is at 5.25V for 0oC to 70oC, Max is at 4.75V for 0oC to 70oC, Typ is at 5V.

7. CPD, measured per flip-flop, is used to determine the dynamic power consumption.

PD (per package) = VCC ICC + Σ(VCC

2 f

I CPD + VO

2 f

O CL + VCC ∆ICC D) where:

VCC = supply voltage

∆ICC = flow through current x unit load

CL = output load capacitance

D = duty cycle of input high

fO = output frequency

fI = input frequency

Prerequisite for Switching (Note 8)

PARAMETER

SYMBOL

VCC (V)

25oC0oC TO 70oC

UNITS

TYP

MIN

MAX

Data to CP Setup Time

tSU

5-3-

ns

Hold Time

tH

5-2-

ns

Removal Time, MR to CP

tREM

5-4-

ns

MR Pulse Width

tW

5-7-

ns

CP Pulse Width

tW

5-7-

ns

CP Frequency

fMAX

5

-

70

-

MHz

NOTE:

8. 5V: Minimum is at 4.75V for 0oC to 70oC, Typical is at 5V.

CD74FCT273

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