CD74FCT245M datasheet(4/7 Pages) TI

4 / 7 page

Switching Speciﬁcations tr, tf = 2.5ns, CL = 50pF, RL - See Figure 3

PARAMETER

SYMBOL

VCC

(V)

AMBIENT TEMPERATURE (TA)

UNITS

25oC0oC TO 70oC

-55oC TO 125oC

TYP

MIN

TYP

MAX

MIN

TYP

MAX

Propagation Delays

Data to Outputs)

tPLH, tPHL

1.5

7.5

Output Enable to Output

tPZL, tPZH

1.5

9.5

1.5

Output Disable to Output

tPLZ, tPHZ

1.5

7.5

1.5

Power Dissipation

Capacitance

CPD

Min (Valley) VOHV During Switching

of Other Outputs (Output Under Test

Not Switching)

VOHV

0.5

------

Max (Peak) VOLP During Switching of

Other Outputs (Output Under Test Not

Switching)

VOLP

------

Input Capacitance

Input/Output Capacitance

CI/O

NOTES:

7. 5V: Min is at 5.5V, Max is at 4.5V.

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

8. CPD, measured per function, is used to determine the dynamic power consumption.

PD (per package) = VCC ICC +∑ (VCC

2 f

l CPD + VO

2 f

O CL + VCC ∆lCC D) where:

VCC = supply voltage

∆lCC = flow through current x unit load

CL = output load capacitance

D = duty cycle of input high

fO = output frequency

fI= input frequency

CD54FCT245, CD74FCT245

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