CD74FCT822AEN datasheet(4/7 Pages) TI

Nome de Peças	CD74FCT822AEN

Descrição Electrónicos	BiCMOS FCT Interface Logic, 10- Bit D-Type Flip-Flops, Three-State

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Fabricante Electrônico	TI [Texas Instruments]

Página de início	http://www.ti.com

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8-4

Switching Speciﬁcations Over Operating Range FCT Series tr, tf = 2.5ns, CL = 50pF, RL (See Figures)

PARAMETER

SYMBOL

VCC (V)

25oC0oC TO 70oC

UNITS

TYP

MIN

MAX

Propagation Delays (Note 6)

Clock to Q

CD74FCT821A

tPLH, tPHL

5

7.5

1.5

10

ns

Clock to Q

CD74FCT822A

tPLH, tPHL

5

7.5

1.5

10

ns

Output Enable to Q

CD74FCT821A

tPZL, tPZH

5

9

1.5

12

ns

Output Disable to Q

CD74FCT821A

tPLZ, tPHZ

5

6

1.5

8

ns

Output Enable to Q

CD74FCT822A

tPZL, tPZH

5

9

1.5

12

ns

Output Disable to Q

CD74FCT822A

tPLZ, tPHZ

5

6

1.5

8

ns

Power Dissipation Capacitance (Note 7)

CPD

−

pF

Minimum (Valley) VOH During Switching of Other Outputs

(Output Under Test Not Switching)

VOHV

5

0.5 Typical at 25oCV

Maximum (Peak) VOL During Switching of Other Outputs

(Output Under Test Not Switching)

VOLP

5

1 Typical at 25oCV

Input Capacitance

CI

---

10

pF

Three-State Output Capacitance

CO

---

15

pF

NOTES:

6. 5V: Minimum is at 5.25V for 0oC to 70oC, Maximum is at 4.75 for 0oc t0 70oC, Typical 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

OCL + 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

Maximum Frequency (Note 8)

fMAX

5

-

70

-

MHz

Data to Clock Setup Time

tSU

5-4-

ns

Data to Clock Hold Time

tH

5-2-

ns

Clock Pulse Width

tW

5-7-

ns

NOTE:

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

CD74FCT821A, CD74FCT822A

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