CD74FCT574 datasheet(4/5 Pages) TI

4 / 5 page

8-4

Switching Speciﬁcations Over Operating Range tr, tf = 2.5ns, CL = 50pF, RL - See Figure 4

PARAMETER

SYMBOL

VCC (V)

AMBIENT TEMPERATURE (TA)

UNITS

25oC0oC TO 70oC

TYP

MIN

MAX

Propagation Delays

Clock to Q

CD74FCT574

tPLH, tPHL

6.6

Clock to Q

CD74FCT564

tPLH, tPHL

6.6

1.5

Output Disable to Q

CD74FCT574

tPLZ, tPHZ

1.5

Output Enable to Q

CD74FCT574

tPZL, tPZH

1.5

12.5

Output Disable to Q

CD74FCT564

tPLZ, tPHZ

1.5

Output Enable to Q

CD74FCT564

tPZL, tPZH

1.5

12.5

Power Dissipation Capacitance

CPD

(Note 6)

34 Typical

Minimum (Valley) VOHV During Switching of

Other Outputs (Output Under Test Not Switching)

VOHV

(Figure 1)

0.5

Maximum (Peak) VOLP During Switching of

Other Outputs (Output Under Test Not Switching)

VOLP

(Figure 1)

Input Capacitance

---

Three State Output Capacitance

---

NOTE:

6. 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 to C

L + 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)

AMBIENT TEMPERATURE (TA)

UNITS

25oC0oC TO 70oC

TYP

MIN

MAX

Clock Pulse Width

CD74FCT574

5 (Note 7)

CD74FCT564

Setup Time Data to Clock

tSU

Data to Clock Hold Time

CD74FCT574

CD74FCT564

Maximum Clock Frequency

fMAX

MHz

NOTE:

7. 5V: minimum is at 4.5V.

5V: minimum is at 4.75V for 0oC to 70oC.

Typical is at 5V.

CD74FCT564, CD74FCT574

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