74VCXH1632245TTR datasheet(8/17 Pages) STMICROELECTRONICS

Il numero della parte	74VCXH1632245TTR

Spiegazioni elettronici	16-BIT DUAL SUPPLY BUS TRANSCEIVER LEVEL TRANSLATOR WITH A SIDE SERIES RESISTOR

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Table 9: Capacitance 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 current can be obtained by the following equation. ICC(opr) =CPD xVCC xfIN +ICC/16 (per circuit)

Figure 3: Test Circuit

CL = 30pF or equivalent (includes jig and probe capacitance)

RL =R1 =500Ω or equivalent

RT =ZOUT of pulse generator (typically 50Ω)

Table 10: Waveform Symbol Value

Symbol

Parameter

Test Condition

Value

Unit

VCCA

(V)

VCCB

(V)

TA =25 °C

-40to85°C

Min.

Typ.

Max.

Min.

Max.

CINB

Input Capacitance

open

5

pF

CI/O

Input/Output

Capacitance

3.3

2.5

6

pF

CPD

Power Dissipation

Capacitance

3.3

2.5

f=10MHz

29

pF

3.3

1.8

29

TEST

SWITCH

tPLH,tPHL

Open

tPZL,tPLZ (VCC = 3.0 to 3.6V)

6V

tPZL,tPLZ (VCC = 2.3 to 2.7V or VCC =1.65to1.95V)

2VCC

tPZH,tPHZ

GND

Symbol

VCC

3.0 to 3.6V

2.3 to 2.7V

1.65 to 1.95V

VIH

VCC

VM

1.5V

VCC/2

VX

VOL +0.3V

VOL +0.15V

VY

VOL -0.3V

VOL -0.15V

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