74ALVCH32245 datasheet(5/9 Pages) STMICROELECTRONICS

tên linh kiện	74ALVCH32245

Giải thích chi tiết về linh kiện	LOW VOLTAGE CMOS 32-BIT BUS TRANSCEIVER (3-STATE) WITH 3.6V TOLERANTAT INPUTS AND OUTPUTS

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74ALVCH32245

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AC ELECTRICAL CHARACTERISTICS

CAPACITIVE CHARACTERISTICS

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/32 (per

circuit)

Symbol

Parameter

Test Condition

Value

Unit

VCC

(V)

(pF)

-40 to 85 °C

Min.

Max.

tPLH tPHL

Propagation Delay Time

2.3 to 2.7

1.0

3.7

2.7

1.0

3.6

3.0 to 3.6

1.0

3.0

tPZL tPZH

Output Enable Time

2.3 to 2.7

1.0

5.7

2.7

1.0

5.4

3.0 to 3.6

1.0

4.4

tPLZ tPHZ

Output Disable Time

2.3 to 2.7

1.0

5.2

2.7

1.0

4.6

3.0 to 3.6

1.0

4.1

Symbol

Parameter

Test Condition

Value

Unit

VCC

(V)

TA = 25 °C

Min.

Typ.

Max.

CIN

Input Capacitance

3.3

VI = 0V or VCC

4pF

COUT

Output Capacitance

3.3

VI = 0V or VCC

8pF

CPD

Power Dissipation Capacitance

(note 1)

2.5

fIN = 10MHz

VI = 0V or VCC

3.3

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