F81438 Datasheet, PDF (12/20 Pages) Feature Integration Technology Inc. – Single 5V RS232/RS422/RS485 Multiprotocol

F81438
Input Current
-
200
300 　μA
DE = 0V, VIN =
12V, Full-Duplex.
Input Current
-
-200 -300 　μA
DE = 0V, VIN = -
7V, Full-Duplex.
Input Resistance
30
KΩ -7V ≤ VCM ≤ +12V
RS232 Single-Ended/RS422/485 Driver Outputs (TX_OUT, RS-232, Pin 7, 17, 18)
Output Voltage Swing
-
±5.0 ±5.4
V
RLOAD = 3KΩ to
GND.
-
±6.0
V
No Load Output.
Output Short Circuit Current
-
±60
mA
VO = 0V.
Power Off Impedance
-
300 10M
Ω
Vcc = 0V;
VO = ±2V.
RL/2
DI
T
VCC
VOD
VOC
RL/2
RS-485 / RS-422 Differential Driver Outputs (TX_OUT)
-
2
Vcc
V
Differential Driver Output
-
1.5
-
1.5
-
1.5
Change In Magnitude of Differential
Output Voltage
-
-0.2
Driver Common Mode Output
Volt- age
-
Change In Magnitude of Common
Mode Output Voltage
-
Driver Output Short Circuit Current
-
Vcc
V
Vcc
V
Vcc
V
+0.2
V
3
V
0.2
V
±250 mA
Output Leakage Current
-
±200 ±300 　uA
RLOAD = 100Ω
(RS422)
RLOAD = 54Ω
(RS485)
VCM = -7V
VCM = +12V
RLOAD = 47Ω
RLOAD = 47Ω
RLOAD = 47Ω
V = +12V to -7V
DE = 0V or
Shutdown, VO =
+12V to -7V.
12
Jan, 2012
V0.11P