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SP3249EEY-L Datasheet, PDF (2/16 Pages) Exar Corporation – Intelligent 3.0V to 5.5V RS-232 Transceiver
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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
TxIN, .................................................-0.3V to +6.0V
RxIN...................................................................+25V
Output Voltages
TxOUT.............................................................+13.2V
RxOUT........................................-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 = 25°C
PARAMETER
MIN.
TYP.
DC CHARACTERISTICS
Supply Current
0.3
LOGIC INPUTS AND RECEIVER OUTPUTS
Input Logic Threshold
LOW
HIGH
2.4
Input Leakage Current
+0.01
Output Voltage LOW
Output Voltage HIGH
DRIVER OUTPUTS
VCC -0.6 VCC -0.1
Output Voltage Swing
+5.0
+5.4
MAX.
1.0
0.8
+1.0
0.4
UNITS CONDITIONS
mA no load
VCC = +3.3V or +5.0V, TxIN
V
V
µA TxIN,TAMB = +25°C
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

SP3249E_100_013111
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