74LVQ273MTR datasheet(4/13 Pages) STMICROELECTRONICS

Il numero della parte	74LVQ273MTR

Spiegazioni elettronici	OCTAL D-TYPE FLIP FLOP WITH CLEAR

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74LVQ273

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Table 7: Dynamic Switching Characteristics

1) Worst case package.

2) Max number of outputs defined as (n). Data inputs are driven 0V to 3.3V, (n-1) outputs switching and one output at GND.

3) Max number of data inputs (n) switching. (n-1) switching 0V to 3.3V. Inputs under test switching: 3.3V to threshold (VILD), 0V to threshold

(VIHD), f=1MHz.

Table 8: AC Electrical Characteristics (CL = 50 pF, RL = 500 Ω, Input tr = tf = 3ns)

1) Skew is defined as the absolute value of the difference between the actual propagation delay for any two outputs of the same device switch-

ing in the same direction, either HIGH or LOW (tOSLH = |tPLHm - tPLHn|, tOSHL = |tPHLm - tPHLn|)

2) Parameter guaranteed by design

(*) Voltage range is 3.3V

± 0.3V

Symbol

Parameter

Test Condition

Value

Unit

VCC

(V)

TA = 25°C

-40 to 85°C

-55 to 125°C

Min.

Typ.

Max.

Min.

Max.

Min.

Max.

VOLP

Dynamic Low

Voltage Quiet

Output (note 1, 2)

3.3

CL = 50 pF

0.4

0.8

V

VOLV

-0.8

-0.5

VIHD

Dynamic High

Voltage Input

(note 1, 3)

3.3

2

V

VILD

Dynamic Low

Voltage Input

(note 1, 3)

3.3

0.8

V

Symbol

Parameter

Test Condition

Value

Unit

VCC

(V)

TA = 25°C

-40 to 85°C

-55 to 125°C

Min.

Typ.

Max.

Min.

Max.

Min.

Max.

tPLH tPHL Propagation Delay

Time CK to Q

2.7

7.3

12.0

14.0

16.0

ns

3.3(*)

6.0

9.0

10.5

12.0

tPHL

Propagation Delay

Time CLR to Q

2.7

9.8

15.5

18.0

21.0

ns

3.3(*)

8.6

12.5

14.5

16.5

tW

CLEAR Pulse

Width

2.7

5.0

2.5

5.0

ns

3.3(*)

4.0

2.2

4.0

tW

CLOCK Pulse

Width

2.7

5.0

2.0

5.0

ns

3.3(*)

4.0

1.6

4.0

ts

Setup Time D to

CK, HIGH or LOW

2.7

4.0

-0.4

4.0

5.0

ns

3.3(*)

3.0

-0.3

3.0

4.0

th

Hold Time D to CK,

HIGH or LOW

2.7

3.0

0.4

3.0

3.5

ns

3.3(*)

2.0

0.3

2.0

2.5

tREM

Recovery Time

CLEAR to CLOCK

2.7

4.0

-0.1

4.0

4.5

ns

3.3(*)

3.0

0.0

3.0

3.5

fMAX

Maximum Clock

Frequency

2.7

60

150

50

MHz

3.3(*)

90

190

70

tOSLH

tOSHL

Output To Output

Skew Time

(note1, 2)

2.7

0.5

1.0

ns

3.3(*)

0.5

1.0

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