74LVX139MTR(2004) 데이터 시트보기 (PDF) - STMicroelectronics

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74LVX139MTR
(Rev.:2004)

LOW VOLTAGE CMOS DUAL 2 TO 4 DECODER/DEMULTIPLEXER

STMicroelectronics 

74LVX139

Table 7: Dynamic Switching Characteristics

Test Condition

Value

Symbol

Parameter

VCC

(V)

VOLP Dynamic Low

Voltage Quiet

3.3

VOLV Output (note 1, 2)

VIHD Dynamic High

3.3

Voltage Input (note

1, 3)

VILD Dynamic Low

3.3

Voltage Input (note

1, 3)

CL = 50 pF

TA = 25°C

-40 to 85°C -55 to 125°C Unit

Min. Typ. Max. Min. Max. Min. Max.

0.3 0.5

-0.5 -0.3

2

V

0.8

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 (Input tr = tf = 3ns)

Test Condition

Value

Symbol

Parameter

VCC CL

(V) (pF)

tPLH tPHL Propagation Delay 2.7 15

Time

2.7 50

A, B to Y

3.3(*) 15

3.3(*) 50

tPLH tPHL Propagation Delay 2.7 15

Time

2.7 50

G to Y

3.3(*) 15

3.3(*) 50

tOSLH Output To Output

2.7 50

tOSHL

Skew Time (note1,

2)

3.3(*)

50

TA = 25°C

-40 to 85°C -55 to 125°C Unit

Min. Typ. Max. Min. Max. Min. Max.

7.5 12.0

9.4 15.0

6.0 8.5

14.0

17.0

10.0

16.0

19.0

11.5 ns

7.6 11.0

12.5

14.5

7.3 12.0

9.2 15.0

5.8 8.5

14.0

17.0

10.0

16.0

19.0

11.5 ns

7.2 11.0

12.5

14.5

0.5 1.0

1.5

1.5

0.5 1.0

1.5

1.5 ns

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

2) Parameter guaranteed by design

(*) Voltage range is 3.3V ± 0.3V

Table 9: Capacitive Characteristics

Test Condition

Value

Symbol

Parameter

VCC

(V)

CIN Input Capacitance 3.3

CPD Power Dissipation

Capacitance

3.3

(note 1)

fIN = 10MHz

TA = 25°C

-40 to 85°C -55 to 125°C Unit

Min. Typ. Max. Min. Max. Min. Max.

5

pF

13

pF

1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without

load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC/2 (per

Decoder)

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