74LVX574 查看數據表（PDF） - STMicroelectronics

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74LVX574

LOW VOLTAGE CMOS OCTAL D-TYPE FLIP-FLOP (3-STATE NON INV.) WITH 5V TOLERANT INPUTS

STMicroelectronics 

74LVX574

CAPACITIVE CHARACTERISTICS

Test Condition

Value

Symbol

Parameter

VCC

(V)

TA = 25°C

-40 to 85°C -55 to 125°C Unit

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

CIN Input Capacitance 3.3

4 10

10

10 pF

COUT Output

Capacitance

3.3

6

pF

CPD Power Dissipation

Capacitance

3.3

fIN = 10MHz

27

pF

(note 1)

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/8 (per circuit)

TEST CIRCUIT

TEST

tPLH, tPHL

tPZL, tPLZ

tPZH, tPHZ

CL =15/50pF or equivalent (includes jig and probe capacitance)

RL = R1 = 1KΩ or equivalent

RT = ZOUT of pulse generator (typically 50Ω)

SWITCH

Open

VCC

GND

5/10

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