ST490A STMicroelectronics, ST490A Datasheet - Page 2

• Manufacturer Part Number: ST490A
• Description: LOW POWER HIGH SPEED RS-485/RS-422 TRANSCEIVER
• Manufacturer: STMicroelectronics

ST490A
PIN CONFIGURATION
PIN DESCRIPTION
TRUTH TABLE (DRIVER)
X= Don’t Care; Z=High Impedance
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is
not implied.
2/11
Symbol
V
V
ESD
V
V
A
V
Y
PlN N°
, V
, V
RO
CC
INPUT
DI
DI
Z
B
1
2
3
4
5
6
7
8
H
L
Supply Voltage
Driver Input Voltage
Driver Output Voltage
Receiver Input Voltage
Receiver Output Voltage
Human Boby Model
SYMBOL
GND
V
RO
DI
Y
B
A
Z
CC
Y
H
L
OUTPUTS
Supply Voltage
Receiver Output.
Driver Input.
Ground
Inverting Driver Output
Non-inverting Driver Output
Inverting Receiver Input
Non-inverting Receiver Input
Parameter
H
Z
L
TRUTH TABLE (RECEIVER)
?= Irrelevant; Z=High Impedance
NAME AND FUNCTION
DIFFERENTIAL INPUT
between -0.2V to 0.2V
OPEN
A-B
-0.2V
-0.2V
-0.3 to (V
-7.5 to 12.5
-7.5 to 12.5
-0.5 to 7
Value
3.5
7
CC
+ 0.3)
OUTPUT
RO
H
H
?
L
Unit
KV
V
V
V
V
V