CD74FCT374M datasheet(4/8 Pages) TI

4 / 8 page

8-4

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

Clock to Q

tPLH, tPHL

6.6

Output Disable to Q

tPLZ, tPHZ

1.5

Output Enable to Q

tPZL, tPZH

1.5

12.5

Power Dissipation Capacitance

CPD

(Note 7)

-33-

Minimum (Valley) VOHV During Switching of

Other Outputs (Output Under Test Not Switching)

VOHV

0.5

Maximum (Peak) VOLP During Switching of

Other Outputs (Output Under Test Not Switching)

VOLP

Input Capacitance

---

Three State Output Capacitance

---

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

PARAMETER

SYMBOL

VCC (V)

25oC0oC TO 70oC

UNITS

TYP

MIN

MAX

Setup Time Data to Clock

tSU

(Note 8)

-2-

Data to Clock Hold Time

5-2-

Clock Pulse Width

5-7-

Maximum Clock Frequency

fMAX

MHz

NOTE:

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

CD74FCT374

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