74VCXH245

http://onsemi.com

2

B0

OE 19

T/R 1

A0

B1

A1

B2

A2

B3

A3

B4

A4

B5

A5

B6

A6

B7

A7

2

3

4

5

6

7

8

9

18

17

16

15

14

13

12

11

Figure 1. Logic Diagram

GND = Pin 10

TRUTH TABLE

OPERATING MODE

Non−Inverting

INPUTS

L

L

H

OE

T/R

L

H

X

B Data to A Bus

A Data to B Bus

Z State

H = High Voltage Level

L = Low Voltage Level

Z = High Impedance State

X = High or Low Voltage Level and Transitions are Acceptable

PIN NAMES

FUNCTION

Output Enable Input

Transmit/Receive Input

Side A Bushold Inputs or 3−State Outputs

Side B Bushold Inputs or 3−State Outputs

PINS

OE

T/R

A0−A7

B0−B7

ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

Value

Condition

Unit

DC Supply Voltage

−0.5 to + 4.6

V

DC Input Voltage

−0.5

V

DC Output Voltage

−0.5

Note 1

V

DC Input Diode Current

−50

mA

DC Output Diode Current

−50

mA

+50

mA

DC Output Source/Sink Current

±50

mA

DC Supply Current Per Supply Pin

±100

mA

DC Ground Current Per Ground Pin

±100

mA

Storage Temperature Range

−65 to +150

°C

Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit

values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied,

damage may occur and reliability may be affected.