SP3238EEY-L-TR Datasheet, PDF (3/21 Pages) Exar Corporation – Intelligent +3.0V to +5.5V RS-232 Transceiver

ELECTRICAL CHARACTERISTICS
V_CC = +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%), T_AMB = T_MIN to T_MAX, unless otherwise noted. Typical
values are at T_A = 25^oC
PARAMETER
MIN. TYP. MAX. UNITS CONDITIONS
DRIVER OUTPUTS (continued)
Output Resistance
Output Short-Circuit Current
RECEIVER INPUTS
300
Ω V_CC = V+ = V- = 0V, V_OUT=+2V
+35 +60
mA V_OUT = 0V
Input Voltage Range
-25
25
V
Input Threshold LOW
0.6
1.2
V Vcc = 3.3V
Input Threshold LOW
0.8
1.5
V Vcc = 5.0V
Input Threshold HIGH
1.5 2.4
V Vcc = 3.3V
Input Threshold HIGH
1.8 2.4
V Vcc = 5.0V
Input Hysteresis
0.5
V
Input Resistance
3
5
7
kΩ
AUTO ON-LINE® CIRCUITRY CHARACTERISTICS (ONLINE = GND, SHUTDOWN = VCC)
STATUS Output Voltage LOW
STATUS Output Voltage HIGH
V_CC -0.6
0.4
V
I_OUT = 1.6mA
V
I_OUT = -1.0mA
Receiver Threshold to Drivers
Enabled (t_ONLINE)
Receiver Positive or Negative
Threshold to STATUS HIGH (t_STSH)
Receiver Positive or Negative
Threshold to STATUS LOW (t_STSL)
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
200
µs Figure 10
0.5
µs Figure 10
20
µs Figure 10
250
kbps R_L = 3KΩ, C_L = 1000pF, one
driver switching
0.15
0.15
200
200
100
50
30
µs
ns
ns
ns
ns
V/µs
Receiver input to Receiver out-
put, C_L = 150pF
Normal operation
Normal operation
| t_PHL - t_PLH |, T_AMB = 25°C
| t_PHL - t_PLH |
Vcc = 3.3V, R_L = 3kΩ, T_AMB =
25°C, measurements taken from
-3.0V to +3.0V or +3.0V to -3.0V
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com

SP3238E_100_020111