74AC158 datasheet(5/9 Pages) STMICROELECTRONICS

tên linh kiện	74AC158

Giải thích chi tiết về linh kiện	QUAD 2 CHANNEL MULTIPLEXER INV.

PDF	9 Pages

Scroll/Zoom	100%

nhà sản xuất	STMICROELECTRONICS [STMicroelectronics]

Trang chủ	http://www.st.com

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CAPACITIVE CHARACTERISTICS

Symbol

Parameter

Test Con dition s

Value

Unit

VCC

(V)

TA =25

oC-40 to 85 oC

Mi n.

Typ.

Max.

Min .

Max.

CIN

Input Capacitance

5.0

CPD

Power Dissipation

Capacitance (note 1)

5.0

TBD

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

• VCC • fIN +ICC/n (per circuit)

AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, RL = 500

Ω, Input tr =tf =3 ns)

Symbol

Parameter

T est Cond iti on

Value

Unit

VCC

(V)

TA =25

oC-40 to 85 oC

Mi n.

Typ.

Max.

Min .

Max.

tPLH

tPHL

Propagation Delay Time

SELECT to Y

3.3

(*)

1.5

7.0

11.5

1.5

12.5

5.0

(**)

1.5

5.0

9.0

1.5

10.0

tPLH

tPHL

Propagation Delay Time

STROBE to Y

3.3

(*)

1.5

7.0

11.0

1.5

12.0

5.0

(**)

1.55.5

8.51.5

9.5

tPLH

tPHL

Propagation Delay Time

A, B to Y

3.3

(*)

1.55.0

8.01.5

8.5

5.0

(**)

1.54.0

7.01.5

7.5

(*) Voltage range is 3.3V

± 0.3V

(**) Voltage range is 5V

± 0.5V

TEST CIRCUIT

74AC158

5/9

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