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SP3281EB Datasheet, PDF (2/15 Pages) Sipex Corporation – Intelligent +2.35V to +5.5V RS-232 Transceivers
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ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional operation
of the device at these ratings or any other above those
indicated in the operation sections of the specifications
below is not implied. Exposure to absolute maximum
rating conditions for extended periods of time may
affect reliability and cause permanent damage to the
device.
VCC......................................................-0.3V to +6.0V
V+ (note 1).........................................-0.3V to +7.0V
V- (note 1)..........................................+0.3V to -7.0V
V+ + |V-| (note 1).............................................+13V
ICC (DC VCC or GND current).........................+100mA
Input Voltages
VL........................................................-0.3V to +6.0V
TxIN, ONLINE, SHUTDOWN, .............0.3V to +6.0V
RxIN..................................................................+25V
Output Voltages
TxOUT............................................................+13.2V
RxOUT, STATUS.......................-0.3V to (V + 0.3V)
L
Short-Circuit Duration
TxOUT.....................................................Continuous
Storage Temperature......................-65°C to +150°C
Power Dissipation per package
28-pin SSOP
(derate 11.2mW/oC above +70oC)............900mW
28-pin TSSOP
(derate 13.2mW/oC above +70oC).........1100mW
ELECTRICAL CHARACTERISTICS
VCC = +2.35 to +5.5V, VL=+1.8 to +5.5V, C1 - C4 = 0.22µF.
TA=TMIN to TMAX, unless otherwise noted. Typical values are at VCC=VL=+3.3V, and TA = +25°C.)
PARAMETER
MIN. TYP. MAX. UNITS
SUPPLY CURRENT
Supply Current,
AUTO ON-LINE®
1.0
10
µA
Supply Current, Shutdown
1.0
10
µA
Supply Current,
AUTO ON-LINE® Disabled
0.3
1.0
mA
LOGIC INPUTS AND RECEIVER OUTPUTS
Input Logic Threshold LOW
0.8
V
0.6
0.4
Input Logic Threshold HIGH
2.4
V
2.0
1.4
0.9
Transmitter Input Hysteresis
0.3
V
Input Leakage Current
±0.01 ±1.0 µA
Output Leakage Current
Output Voltage LOW
Output Voltage HIGH
DRIVER OUTPUTS
VCC Mode Switch Point
(VCC is Falling)
VCC Mode Switch Point
(VCC is Rising)
VCC Mode Switch Point
Hysteresis
±0.05 ±10
µA
0.4
V
0.4
VL - 0.6 VL - 0.1
V
VL - 0.6 VL - 0.1
2.95
3.1 3.25
V
3.3
3.5
3.7
V
400
mV
CONDITIONS
All RxIN open, all TxIN at VLor GND,
VCC=VL=+3.3V, TA=25°C
ONLINE = GND, SHUTDOWN = VL,
All RxIN open, all TxIN at VL or GND
VCC=VL=+3.3V, TA=25°C
ONLINE = VL or GND, SHUTDOWN =
GND
All TxIN at VL or GND, ONLINE = VL,
VCC=VL=+3.3V, TA=25°C
SHUTDOWN = VL,no load
TxIN, ONLINE, SHUTDOWN
VL = +3.3V or +5.0V
VL = +2.5V
VL = +1.8V
TxIN, ONLINE, SHUTDOWN
VL = +5.0V
VL = +3.3V
VL = +2.5V
VL = +1.8V
TxIN, ONLINE, SHUTDOWN,
TA = 25°C
RxOUT, Receivers disabled
IOUT = +1.6mA, VL=2.5V, 3.3V, or 5.0V
IOUT = +0.8mA, VL=1.8V
IOUT = -1.0mA, VL=2.5V, 3.3V, 5.0V
IOUT = -0.5mA, VL=1.8V
TxOUT=±5.0V to ±3.7V
TxOUT=±3.7V to ±5.0V
Rev. 6/19/03
SP3281EB Intelligent +2.35V to +5.5V RS-232 Transceivers
2
© Copyright 2003 Sipex Corporation
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