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SP3238EEY-L-TR Datasheet, PDF (2/21 Pages) Exar Corporation – Intelligent +3.0V to +5.5V RS-232 Transceiver
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.
Power Dissipation per package
28-pin SSOP (derate 11.2mW/oC above +70oC)..........900mW
28-pin TSSOP (derate 13.2mW/oC above +70oC)......1100mW
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
TxIN, ONLINE, SHUTDOWN, ....-0.3V to Vcc + 0.3V
RxIN...................................................................+25V
Output Voltages
TxOUT.............................................................+13.2V
RxOUT, STATUS.......................-0.3V to (VCC +0.3V)
Short-Circuit Duration
TxOUT....................................................Continuous
Storage Temperature......................-65°C to +150°C
NOTE 1: V+ and V- can have maximum magnitudes of 7V, but their absolute difference cannot exceed 13V.
ELECTRICAL CHARACTERISTICS
VCC = +3.0V to +5.5V, C1 - C4 = 0.1µF (tested at 3.3V +/-5%), C1 - C4 = 0.22µF (tested at 3.3V +/-10%),
C1 = 0.047µF and C2 - C4 = 0.33µF (tested at 5.0V +/-10%), TAMB = TMIN to TMAX, unless otherwise noted. Typical
values are at TA = 25oC
PARAMETER
DC CHARACTERISTICS
Supply Current, AUTO ON-
LINE®
MIN.
TYP.
1.0
Supply Current, Shutdown
1.0
Supply Current
0.3
AUTO ON-LINE® Disabled
LOGIC INPUTS AND RECEIVER OUTPUTS
Input Logic Threshold
LOW
HIGH
2.4
Input Leakage Current
+0.01
Output Leakage Current
Output Voltage LOW
Output Voltage HIGH
DRIVER OUTPUTS
Output Voltage Swing
+0.05
VCC -0.6 VCC -0.1
+5.0
+5.4
MAX.
10
10
1.0
0.8
+1.0
+10
0.4
UNITS CONDITIONS
µA All RxIN open, ONLINE = GND,
SHUTDOWN = VCC, TxIN = GND or
VCC
µA SHUTDOWN = GND, TxIN = Vcc or
GND
mA ONLINE = SHUTDOWN = Vcc,
no load, TxIN = GND or VCC
VCC = +3.3V or +5.0V, TxIN
V ONLINE, SHUTDOWN
V
µA TxIN, ONLINE, SHUTDOWN,
TAMB = +25oC
µA Receivers disabled
V
IOUT = 1.6mA
V
IOUT = -1.0mA
V All driver outputs loaded with 3KΩ to
GND
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com

SP3238E_100_020111