74LVQ299 データシートの表示（PDF） - STMicroelectronics

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74LVQ299

8 BIT PIPO SHIFT REGISTER WITH ASYNCHRONOUS CLEAR

STMicroelectronics 

74LVQ299

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

pF

CI/O

Bus Input

Capacitance

pF

CPD Power Dissipation

Capacitance

3.3

fIN = 10MHz

10

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/n (per circuit)

TEST CIRCUIT

TEST

tPLH, tPHL

tPZL, tPLZ

tPZH, tPHZ

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

RL = R1 = 500Ω or equivalent

RT = ZOUT of pulse generator (typically 50Ω)

SWITCH

Open

2VCC

Open

7/12

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