ST490 STMICROELECTRONICS [STMicroelectronics], ST490 Datasheet - Page 4

• Manufacturer Part Number: ST490
• Description: LOW POWER HIGH SPEED RS-485/RS-422 TRANSCEIVER
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

ST490A
RECEIVER ELECTRICAL CHARACTERISTICS
V
DRIVER SWITCHING CHARACTERISTICS
V
RECEIVER SWITCHING CHARACTERISTICS
V
4/11
Symbol
Symbol
Symbol
CC
CC
CC
t
R
I
SKEW
V
t
t
V
V
t
t
t
t
t
t
t
I
I
OSR
D
SKD
V
PLH
PHL
TLH
THL
PLH
PHL
TLH
THL
IN1
IN2
OH
RIN
TH
OL
= 4.5V to 5.5V, T
= 4.5V to 5.5V, T
R
= 4.5V to 5.5V, T
TH
Logic Input Current
Input Current (A, B)
Receiver Differential
Threshold Voltage
Receiver Input Hysteresis
Receiver Output High
Voltage
Receiver Output Low
Voltage
Receiver Input Resistance
Receiver Short-Circuit
Current
Maximum Data Rate
Propagation Delay Input to
Output
Differential Output Delay
Skew
Rise or Fall Differential
Time
Propagation Delay Input to
Output
|t
Skew
Rise or Fall Time
PLH -
t
PHL
Parameter
Parameter
Parameter
| Receiver Output
A
A
A
= -40 to 85°C, unless otherwise specified. Typical values are referred to T
= -40 to 85°C, unless otherwise specified. Typical values are referred to T
= -40 to 85°C, unless otherwise specified. Typical values are referred to T
other input=0V
V
V
V
I
I
V
V
Jitter <5%
R
R
R
C
C
C
OUT
OUT
CC
CM
CM
CM
O
L
L
L
L
L
L
= 54
= 54
= 54
= 15pF
= 15pF
= 15pF
= 0V to V
= 0 or 5.25V
= -7V to 12V
= 0V
= -7V to 12V
= -8mA, V
= 8mA, V
Test Conditions
CC
Test Conditions
Test Conditions
C
C
C
(Figures 2,4)
(Figures 2,4)
(Figures 2,4)
ID
ID
L1
L1
L1
= -200mV
=C
=C
=C
= 200mV
L2
L2
L2
=50pF, (Figure 1)
=50pF, (Figure 1)
=50pF, (Figure 1)
V
V
IN
IN
=12V
=-7V
Min.
-0.2
3.5
Min.
Min.
12
7
25
-0.35
Typ.
Typ.
Typ.
0.5
4.7
0.2
70
24
50
10
19
1
8
1
8
Max.
Max.
Max.
-0.8
0.2
0.4
95
16
12
30
2.0
1
3
3
a
a
a
= 25°C)
= 25°C)
= 25°C)
Mbps
Unit
Unit
Unit
mA
mA
mV
mA
K
ns
ns
ns
ns
ns
ns
V
V
V
A