CD74FCT654EN datasheet(6/9 Pages) TI

Nome de Peças	CD74FCT654EN

Descrição Electrónicos	FCT Interface Logic, Octal Bus Transceivers/ Registers, Open Drain (A Side), Three-State (B Side)

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Fabricante Electrônico	TI [Texas Instruments]

Página de início	http://www.ti.com

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8-6

Switching Speciﬁcations Over Operating Range tr, tf = 2.5ns, CL = 50pF, RL (Figures 3, 4)

PARAMETER

SYMBOL

VCC (V)

25oC0oC TO 70oC

UNITS

TYP

MIN

MAX

Propagation Delays

Stored An

→ Bn

CD74FCT653

tPLH, tPHL

5

6.8

2

9

ns

Stored An

→ Bn

CD74FCT654

tPLH, tPHL

5

6.8

2

9

ns

Stored Bn

→ An

CD74FCT653

tPZL

5628

ns

tPLZ

5

6.8

2

9

ns

Stored Bn

→ An

CD74FCT654

tPZL, tPLZ

5

6.8

2

9

ns

An

→ Bn

CD74FCT653

tPLH, tPHL

5628

ns

An

→ Bn

CD74FCT654

tPLH, tPHL

5

6.8

2

9

ns

Bn

→ An

CD74FCT653

tPZL

5628

ns

tPLZ

5

6.8

2

9

ns

Bn

→ An

CD74FCT654

tPZL, tPLZ

5

6.8

2

9

ns

Select to Data (B Bus)

CD74FCT653,

CD74FCT654

tPLH, tPHL

5

8.3

2

11

ns

Select to Data (A Bus)

CD74FCT653

tPZL

5628

ns

tPLZ

5

6.8

2

9

ns

Select to Data (A Bus)

CD74FCT654

tPZL, tPLZ

5

6.8

2

9

ns

Three-State Enabling Times (B Bus),

Bus to Output or Register to Output

CD74FCT653

tPZL, tPZH

5

10.5

2

14

ns

CD74FCT654

tPZL, tPZH

5

11.3

2

15

ns

Three-State Disabling Time (B Bus),

Bus to Output or Register to Output

CD74FCT653

tPLZ, tPZH

5

6.8

2

9

ns

CD74FCT654

tPLZ, tPZH

5

6.8

2

9

ns

Off State Enabling Times (A Bus),

Bus to Output or Register to Output

CD74FCT653

tPZL

5

10.5

2

14

ns

CD74FCT654

tPZL

5

11.3

2

15

ns

Off State Disabling Time (A Bus),

Bus to Output or Register to Output

CD74FCT653

tPLZ

5

6.8

2

9

ns

CD74FCT654

tPLZ

5

6.8

2

9

ns

Prerequisite for Switching

tr, tf = 2.5ns, CL = 50pF, RL (Figures 3, 4)

PARAMETER

SYMBOL

VCC (V)

25oC0oC TO 70oC

UNITS

TYP

MIN

MAX

Maximum Frequency (B Side as Outputs)

fMAX

5

(Note 8)

-

80

-

MHz

Data to Clock Setup Time

tSU

5-4-

ns

Data to Clock Hold Time

tH

5-2-

ns

Clock Pulse Width

tW

5-6-

ns

CD74FCT653, CD74FCT654

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