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SP3281EB 数据表(PDF) 3 Page - Sipex Corporation

部件名 SP3281EB
功能描述  Intelligent 2.35V to 5.5V RS-232 Transceivers
PDF  15 Pages
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制造商  SIPEX [Sipex Corporation]
网页  http://www.sipex.com
标志 SIPEX - Sipex Corporation

SP3281EB 数据表(HTML) 3 Page - Sipex Corporation

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3
Rev. 6/19/03
SP3281EB Intelligent +2.35V to +5.5V RS-232 Transceivers
© Copyright 2003 Sipex Corporation
PARAMETER
MIN.
TYP.
MAX.
UNITS
CONDITIONS
Output Voltage Swing
All driver outputs loaded with 3KΩ to
GND, TA=25°C
±5.0
±5.4
V
VCC=3.25V to 5.5V,
+/-3.7
VCC=2.35 to 2.95V,
Output Resistance
300
Ω
VCC = V+ = V- = 0V, VTXOUT = ±2V
Output Short-Circuit Current
±35
±60
mA
VTXOUT = GND
Ouput Leakage Current
+/-25
µAVTXOUT=+/-12V, transmitter disabled,
VCC=0V or 2.35V to 5.5V
RECEIVER INPUTS
Input Voltage Range
-25
25
V
Input Threshold
LOW
0.3
0.8
V
VL=1.8V, TA=25°C
0.6
1.2
VL=2.5V or 3.3V, TA=25°C
0.8
1.5
VL=5.0V, TA=25°C
HIGH
1.0
1.8
V
VL=1.8V, TA=25°C
1.5
2.4
VL=2.5V or 3.3V, TA=25°C
1.8
2.4
VL=5.0V, TA=25°C
Input Hysteresis
0.3
V
Input Resistance
3
5
7
kΩ
TA=25°C
AUTO ON-LINE® CIRCUITRY CHARACTERISTICS (ONLINE = GND, SHUTDOWN = VCC)
STATUS Output Voltage
LOW
0.4
V
IOUT = 1.6mA, VL=2.5V, 3.3V, 5.0V
or IOUT = +0.8mA, VL=1.8V
HIGH
VL - 0.6
VL-0.1
IOUT = -1.0mA, VL=2.5V, 3.3V, 5.0V
or IOUT = -0.5mA, VL=1.8V
Receiver Threshold to Drivers
200
µs
Enabled (tONLINE)
Receiver +/- Threshold
to Status HIGH (tSTSH)20
µs
to Status LOW (tSTSL)20
µs
AC Characteristics
Maximum Data Rate
250
kbps
SP3281EB: RL = 3kΩ, CL = 1000pF,
one driver switching
Receiver Propagation Delay
Receiver input to output, CL = 150pF
t PHL
0.15
µs
t PLH
0.15
Receiver Output Enable Time
200
ns
Normal operation
Receiver Output Disable Time
200
ns
Normal operation
Time to Exit Shutdown
100
µs|VTXOUT|>3.7V, VCC=3.3V
Driver Skew |tPHL-tPLH|
100
ns
Measured at zero crossover
Receiver Skew |tPHL-tPLH|50ns
Measured at zero crossover
Transition-Region Slew Rate
VCC = 3.3V, RL = 3kΩ to 7kΩ ,
TA = 25°C, measurements taken from
-3.0V to +3.0V or +3.0V to -3.0V
30
V/µsCL = 150pF to 1000pF
ELECTRICAL CHARACTERISTICS: Continued
V
CC = +2.35 to +5.5V, VL=+1.8 to +5.5V, C1 - C4 = 0.22µF.
T
A=TMIN to TMAX, unless otherwise noted. Typical values are at VCC=VL=+3.3V, and TA = +25°C.)



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