SP3249 查看數據表（PDF） - Signal Processing Technologies
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SP3249 Datasheet PDF : 14 Pages
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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.
SPECIFICATIONS
V
CC
=
+3.0
to
+5.5,
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%), T = T to T , unless otherwise noted.
A
MIN
MAX
Typical
values
are
at
T
A
=
+25°C.)
PARAMETER
MIN.
TYP.
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
VCC - 0.6 VCC - 0.1
DRIVER OUTPUTS
Output Voltage Swing
±5.0
±5.4
Output Resistance
300
Output Short-Circuit Current
±35
RECEIVER INPUTS
Input Voltage Range
-25
Input Threshold LOW
0.6
1.2
Input Threshold LOW
0.8
1.5
Input Threshold HIGH
1.5
Input Threshold HIGH
1.8
Input Hysteresis
0.5
Input Resistance
3
5
MAX.
1.0
0.8
±1.0
0.4
±60
25
2.4
2.4
7
UNITS CONDITIONS
mA VCC, no load
V VCC = +3.3V or +5.0V, TxIN
V VCC = +3.3V or +5.0V, TxIN
µA TxIN, TA = 25°C
V
IOUT = 1.6mA
V
IOUT = -1.0mA
V All driver outputs loaded with
3KΩ to GND
Ω
VCC = V+ = V- = 0V, VOUT = ±2V
mA VOUT = GND
V
V
VCC = 3.3V
V
VCC = 5.0V
V
VCC = 3.3V
V
VCC = 5.0V
V
kΩ
Rev.4/08/02
SP3249E Intelligent +3.0V to +5.5V RS-232 Transceivers
2
© Copyright 2002 Sipex Corporation
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