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F81438 Datasheet(PDF) 11 Page - Feature Integration Technology Inc.

Part No. F81438
Description  Single 5V RS232/RS422/RS485 Multiprotocol
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Manufacturer  FINTEK [Feature Integration Technology Inc.]
Direct Link  http://www.fintek.com.tw/eng
Logo FINTEK - Feature Integration Technology Inc.

F81438 Datasheet(HTML) 11 Page - Feature Integration Technology Inc.

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F81438
Jan, 2012
V0.11P
11
6 Electrical Characteristics Request
6.1
Absolute Maximum Ratings
PARAMETER
RATING
UNIT
Power Supply Voltage
+6.0
V
Receiver Input Voltage (DC input Voltage)
-13.2 to +13.2
V
Input Voltage at TTL input Pins
-0.3 to Vcc +0.5
V
Driver Output Voltage (from Ground)
-7.5 to +12.5
V
Short Cirecuit Duration, TXOUT to GND
Continous
-
Storage Tempreature
-65 to +150
° C
Lead Temperature (soldering, 10s)
+300
° C
Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and
reliability of the device
6.2
DC Characteristics
(T
A = 0° C to 70° C, VDD = +5.0V ± 5% )
Parameter
Conditions
MIN
TYP
MAX
Unit
Supply Current (RS-232)
No Load, MODE = 01.
2
30
mA
Supply Current (RS-485)
No Load, MODE = 10, 11.
2
mA
Supply Current (RS-422)
MODE = 00.
2
mA
(TA = 0° C to 70° C, VDD = +5.0V ± 5%)
PARAMETER
SYM.
MIN.
TYP.
MAX.
UNIT
CONDITIONS
Transmitter and Logic Input Pins (MODE, SLEW) 1, 2, 23, 24, 25, 27, 28
Logic Input Voltage HIGH
VIL
2.4
V
VDD = 5.0 V
Logic Input Voltage LOW
-
0.8
V
Logic Input Pull-up Current
-
±15
μA
TX_IN Pull High Current
IIT
±15
μA
Logic Input Hysteresis
-
0.5
V
RS-232 and RS-485 / 422 Receiver Outputs RX_OUT: Pin 19, 20, 21, 22, 26
Receiver Output Voltage HIGH
VOH
Vcc-
0.6
V
IOUT = -1.5mA.
Receiver Output Voltage LOW
VOL
0.4
V
IOUT = 2.5mA.
Receiver Output Short-Circuit
Current
IOS
±20
±60
mA
0 < Vo < Vcc.
Receiver Output Leakage Current
-
±0.05
±1
μA
Receivers Disabled.
RS-232 Single-End Receiver Input (RX_IN, pin 3, 4, 6, 15, 16)
Input Voltage Range
-
-13.2
+13.2
V
Input Threshold Low
VIL
0.8
1.5
V
VCC = 5.0V.
Input Threshold HIGH
VIH
1.8
2.4
V
VCC = 5.0V.
Input Hysteresis
-
0.5
V
Input Resistance
-
3
5
7
KΩ
RS-485 / RS-422 Differential Receiver Inputs (RX_IN, pin 3, 4)
Receiver Differential Threshold
Voltage
-
-250
-200
mV
VB = 0V.
Receiver Input Hysteresis
-
30
mV
VCM = 0V.


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