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74LVQ245MTR

LOW VOLTAGE CMOS OCTAL BUS TRANSCEIVER WITH (3-STATE)

STMicroelectronics 

74LVQ245

INPUT EQUIVALENT CIRCUIT

PIN DESCRIPTION

PIN No

1

2, 3, 4, 5, 6,

7, 8,9

18, 17, 16,

15, 14, 13,

12, 11

19

10

20

SYMBOL

DIR

A1 to A8

NAME AND FUNCTION

Directional Control

Data Inputs/Outputs

B1 to B8 Data Inputs/Outputs

G

GND

VCC

Output Enable Input

Ground (0V)

Positive Supply Voltage

TRUTH TABLE

INPUTS

G

DIR

L

L

L

H

H

X

X : Don‘t Care

Z : High Impedance

FUNCTION

A BUS

OUTPUT

INPUT

Z

B BUS

INPUT

OUTPUT

Z

OUTPUT

A=B

B=A

Z

ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

Value

Unit

VCC Supply Voltage

-0.5 to +7

V

VI

DC Bus I/O Voltage (DIR , G)

-0.5 to VCC + 0.5

V

VI/O DC Bus I/O Voltage

-0.5 to VCC + 0.5

V

IIK

DC Input Diode Current

± 20

mA

IOK

DC Output Diode Current

± 20

mA

IO

DC Output Current

± 50

mA

ICC or IGND DC VCC or Ground Current

± 400

mA

Tstg Storage Temperature

-65 to +150

°C

TL

Lead Temperature (10 sec)

300

°C

Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is

not implied

RECOMMENDED OPERATING CONDITIONS

Symbol

Parameter

VCC Supply Voltage (note 1)

VI

Input Voltage (DIR , G)

VO

DC Bus I/O Voltage

Top

Operating Temperature

dt/dv Input Rise and Fall Time VCC = 3.0V (note 2)

1) Truth Table guaranteed: 1.2V to 3.6V

2) VIN from 0.8V to 2V

Value

2 to 3.6

0 to VCC

0 to VCC

-55 to 125

0 to 10

Unit

V

V

V

°C

ns/V

2/9

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