74LVX594TTR(2004) 查看數據表（PDF） - STMicroelectronics

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74LVX594TTR
(Rev.:2004)

LOW VOLTAGE CMOS 8 BIT SHIFT REGISTER WITH OUTPUT REGISTER (5V TOLERANT INPUTS)

STMicroelectronics 

74LVX594

Table 9: Capacitive Characteristics

Test Condition

Value

Symbol

Parameter

VCC

(V)

CIN Input Capacitance 3.3

COUT

Output

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.

7 10

10

10 pF

9

pF

55

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

Figure 5: Test Circuit

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

RT = ZOUT of pulse generator (typically 50Ω)

Figure 6: Waveform - Minimum Pulse Width (f=1MHz; 50% duty cycle)

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