74LVT245DB datasheet(4/15 Pages) NXP

部品番号	74LVT245DB

部品情報	3.3 V octal transceiver with direction pin (3-state)

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74LVT245_3

Product data sheet

Rev. 03 — 8 May 2008

4 of 15

NXP Semiconductors

74LVT245

3.3 V octal transceiver with direction pin (3-state)

6.

Functional description

[1]

H = HIGH voltage level;

L = LOW voltage level;

X = don’t care;

Z = high impedance OFF-state.

7.

Limiting values

[1]

Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the

device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to

absolute-maximum-rated conditions for extended periods may affect device reliability.

[2]

The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction

temperatures which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150

°C.

[3]

The input and output negative voltage ratings may be exceeded if the input and output clamp current ratings are observed.

[4]

For SO20 packages: above 70

°C derate linearly with 8 mW/K.

For SSOP20 and TSSOP20 packages: above 60

°C derate linearly with 5.5 mW/K.

For DHVQFN20 packages: above 60

°C derate linearly with 4.5 mW/K.

8.

Recommended operating conditions

Table 3.

Function selection

Inputs

Inputs/outputs

OE

DIR

An

Bn

L

An = Bn

inputs

L

H

inputs

Bn = An

HX

Z

Table 4.

Limiting values

In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).[1][2]

Symbol

Parameter

Conditions

Min

Max

Unit

VCC

supply voltage

−0.5

+4.6

V

VI

input voltage

[3]

−0.5

7.0

V

VO

output voltage

output in OFF or HIGH state

[3]

−0.5

+7

V

IIK

input clamping current

VI < 0 V

−50

-

mA

IOK

output clamping current

VO < 0 V

−50

-

mA

IO

output current

output in LOW state

-

128

mA

output in HIGH state

−64

-

mA

Tstg

storage temperature

−65

+150

°C

Tj

junction temperature

-

+150

°C

Ptot

total power dissipation

Tamb = −40 °C to +85 °C

[4] -

500

mW

Table 5.

Recommended operating conditions

Symbol

Parameter

Conditions

Min

Max

Unit

VCC

supply voltage

2.7

3.6

V

VI

input voltage

0

5.5

V

IOH

HIGH-level output current

-

−32

mA

同様の部品番号 - 74LVT245DB

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NXP Semiconductors	74LVT245DB	92Kb / 10P	3.3V Octal transceiver with direction pin 3-State 1998 Feb 19

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