SP385ECT-L Datasheet, PDF (4/15 Pages) Exar Corporation – Enhanced +3V or +5V RS-232 Line Driver/Receiver

ELECTRICAL CHARACTERISTICS
V_CC = +3.3V +10%; cap on (V+) and (V-) = 1.0µF, C1 = C2 = 0.1µF; T_MIN to T_MAX unless otherwise noted.
PARAMETER
TTL INPUT
Input Logic Threshold LOW
Input Logic Threshold HIGH
Logic Pullup Current
Maximum Data Rate
TTL OUTPUT
TTL/CMOS Output
Voltage LOW
TTL/CMOS Output
Voltage HIGH
Leakage Current
MIN.
2.0
120
3.5
EIA-232 OUTPUT
Output Voltage Swing
+5.0
Power-Off Output Resis-
300
tance
Output Short-Circuit Current
EIA-232 INPUT
Input Voltage Range
-15
Input Threshold LOW
0.8
Input Threshold HIGH
Input Hysteresis
0.2
Input Resistance
3
DYNAMIC CHARACTERISTICS
Propagation Delay
Instantaneous Slew Rate
Transition-Region Slew Rate
Output Enable Time
Output Disable Time
POWER REQUIREMENTS
Vcc Power Supply Current
Vcc Power Supply Current
Shutdown Supply Current
TYP. MAX. UNITS CONDITIONS
0.8
V TxIN, ON/OFF
V TxIN, ON/OFF
15
200
µA T_IN = 0V
kbps C_L = 2500pF, R_L = 3kΩ
0.4
+0.05 +10
V
I_OUT = 3.2mA, Vcc = 5.0V
V
I_OUT = -1.0mA, Vcc = 5.0V
µA ON/OFF = 0V, 0V ≤ V_OUT ≤ Vcc,
T_A = 25°C
+9
V All transmitter outputs loaded with
3kΩ to GND
Ω V_CC = 0V, V_OUT=+2V
+18
mA Infinite Duration
15
V
1.2
V
V_CC = 5V, T_A = +25°C
1.7
2.4
V
V_CC = 5V, T_A = +25°C
0.5
1.0
V
V_CC = 5V, T_A = +25°C
5
7
kΩ V_IN = 15V to -15V
1.5
µs
RS-232 to TTL
30
V/µs C_L = 10pF, R_L = 3kΩ - 7kΩ:
T_A = +25°C
10
V/µs CL = 2500pF, R_L = 3kΩ;
Measured from +3V to -3V or -3V
to +3V
400
ns
250
ns
10
15
mA No load, T_A = +25°C; Vcc = 5V
25
mA All transmitters R_L = 3kΩ, T_A = +25°C
1
10
µA Vcc = 5V, T_A = +25°C
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com

SP385E_100_030811