SP3238E Datasheet, PDF (4/20 Pages) Sipex Corporation – Intelligent +3.0V to +5.5V RS-232 Transceivers

SPECIFICATIONS (continued)
Unless otherwise noted, the following specifications apply for V_CC = +3.0V to +5.5V with T_AMB = T_MIN to T_MAX.
Typical values apply at V_CC = +3.3V or +5.0V and T_AMB = 25°C.
PARAMETER
MIN. TYP. MAX. UNITS CONDITIONS
TIMING CHARACTERISTICS
Maximum Data Rate
Receiver Propagation Delay
t_PHL
t_PLH
Receiver Output Enable Time
Receiver Output Disable Time
Driver Skew
Receiver Skew
Transition-Region Slew Rate
250
0.15
0.15
200
200
100 500
200 1000
30
kbps R_L = 3kΩ, C_L = 1000pF, one driver active
µs Receiver input to Receiver output, C_L = 150pF
ns Normal operation
ns Normal operation
ns
ns
V/µs
| t_PHL - t_PLH |, T_AMB = 25^oC
| t_PHL - t_PLH |
V_CC= 3.3V, R_L = 3kΩ, T_AMB = 25^oC,
measurements taken from -3.0V to +3.0V or
+3.0V to -3.0V
TYPICAL PERFORMANCE CHARACTERISTICS
Unless otherwise noted, the following performance characteristics apply for V_CC = +3.3V, 235Kbps data rate, all drivers
loaded with 3kΩ, 0.1µF charge pump capacitors, and T_AMB = +25°C.
14
6
12
4
10
2
Vout+
Vout-
8
0
6
0
500
1000
1500
-2
4
+Slew
-Slew
-4
2
-6
Load Capacitance [pF]
0
0
500
1000
1500
2000
Load Capacitance [pF]
Figure 1. Transmitter Output Voltage VS. Load
Capacitance
Figure 2. Slew Rate VS. Load Capacitance
SP3238EDS/04
SP3238E +3.0V to +5.5V RS-232 Transceivers
4
© Copyright 1999 Sipex Corporation