SP3282 Datasheet, PDF (3/15 Pages) Sipex Corporation – Intelligent +2.35V to +5.5V RS-232 Transceivers

ELECTRICAL CHARACTERISTICS
V
CC
=
+2.35
to
+5.5V,
V =+1.8
L
to
+5.5V,
C1
-
C4
=
0.22µF.
T =T
A MIN
to
T,
MAX
unless
otherwise
noted.
Typical
values
are
at
V =V =+3.3V,
CC L
and
T
A
=
+25°C.)
PARAMETER
MIN. TYP. MAX. UNITS CONDITIONS
Output Voltage Swing
±5.0
±5.4
+/-3.7
All driver outputs loaded with 3KΩ to
GND, T_A=25°C
V
V_CC=3.25V to 5.5V,
V_CC=2.35 to 2.95V,
Output Resistance
300
Output Short-Circuit Current
Ω
±35 ±60 mA
V_CC = V+ = V- = 0V, V_TXOUT = ±2V
V_TXOUT = GND
Ouput Leakage Current
+/-25 µA
V_TXOUT=+/-12V, transmitter disabled,
V_CC=0V or 2.35V to 5.5V
RECEIVER INPUTS
Input Voltage Range
-25
25
V
Input Threshold
LOW
0.3
0.8
0.6
1.2
0.8
1.5
V
VL=1.8V, T_A=25°C
VL=2.5V or 3.3V, T_A=25°C
VL=5.0V, T_A=25°C
HIGH
1.0
1.8
V
1.5
2.4
1.8
2.4
VL=1.8V, T_A=25°C
VL=2.5V or 3.3V, T_A=25°C
VL=5.0V, T_A=25°C
Input Hysteresis
0.3
V
Input Resistance
3
5
7
kΩ
T_A=25°C
AUTO ON-LINE^® CIRCUITRY CHARACTERISTICS (ONLINE = GND, SHUTDOWN = V_CC)
STATUS Output Voltage
LOW
0.4
V
I_OUT = 1.6mA, V_L=2.5V, 3.3V, 5.0V
or I_OUT = +0.8mA, V_L=1.8V
HIGH
V_L - 0.6 V_L-0.1
Receiver Threshold to Drivers
200
Enabled (t_ONLINE)
Receiver +/- Threshold
to Status HIGH (t_STSH)
20
to Status LOW (t_STSL)
20
AC Characteristics
Maximum Data Rate
250
Receiver Propagation Delay
t _PHL
t _PLH
Receiver Output Enable Time
Receiver Output Disable Time
Time to Exit Shutdown
Driver Skew |t_PHL-tP_LH|
Receiver Skew |t_PHL-t_PLH|
Transition-Region Slew Rate
0.15
0.15
200
200
100
100
50
30
µs
µs
µs
kbps
µs
ns
ns
µs
ns
ns
V/µs
I_OUT = -1.0mA, V_L=2.5V, 3.3V, 5.0V
or I_OUT = -0.5mA, V_L=1.8V
SP3282EB: R_L = 3kΩ, C_L = 1000pF,
one driver switching
Receiver input to output, C_L = 150pF
Normal operation
Normal operation
|V_TXOUT|>3.7V, V_CC=3.3V
Measured at zero crossover
Measured at zero crossover
V_CC = 3.3V, R_L = 3kΩ to 7kΩ ,
T_A = 25°C, measurements taken from
-3.0V to +3.0V or +3.0V to -3.0V
C_L = 150pF to 1000pF
Date: 02/24/05
SP3282EB Intelligent +2.35V to +5.5V RS-232 Transceivers
3
© Copyright 2005 Sipex Corporation