SP332 Datasheet, PDF (4/11 Pages) Sipex Corporation – RS-232/RS-485 Multi-Mode Serial Transceiver

Limits are specified at T_A = 25°C and V_CC = +5.0V unless otherwise noted.
SPECIFICATIONS (continued)
PARAMETER
MIN.
TYP.
MAX. UNITS CONDITIONS
RS-232 DRIVER (continued)
AC Characteristics
Propagation Delay; t_PHL
Propagation Delay; t_PLH
Slew Rate
2
4
µs R_L = 3kΩ, C_L = 2500pF, From 1.5V
of T_IN to 50% of V_OUT
2
4
µs R_L = 3kΩ, C_L = 2500pF, From 1.5V
of T_IN to 50% of V_OUT
10
30
V/µs R_L = 3kΩ, C_L = 50pF; From +3V to
-3V or -3V to +3V
RS-232 RECEIVER
DC Characteristics
TTL Output Level; V_OL
TTL Output Level; V_OH
Input High Threshold
0.4
Volts I_SINK = 4mA
3.5
Volts I_SOURCE = -4mA
2.1
3.0
Volts
Input Low Threshold
0.8
1.6
Volts
Input Voltage Range
-15
+15 Volts
Input Impedance
Hysteresis
AC Characteristics
3
5
7
kΩ V_IN = +/-15V
0.2
0.5
1.0
Volts V_CC = +5V
Transmission Rate
120
kbps
Transition Time
50
ns Rise/Fall time, 10%-90%
Propagation Delay t_PHL
Propagation Delay t_PLH
POWER REQUIREMENTS
100
300
ns From 50% of V_IN to 1.5V of R_OUT
100
200
ns
No Load Supply Current
Full Load Supply Current
19
25
mA No Load; V_CC = 5.0V; T_A = 25°C
90
120
mA RS-232 drivers R_L = 3kΩ to GND,
DC input
RS-485 drivers R_L = 54Ω from A to
B; DC input
Shutdown Supply Current
5
50
µA
Note 1: Exceeding the maximum data rate may damage the device
T_A = 25°C, V_CC = 5.0V
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com

SP332_100_012610