SP338E Datasheet, PDF (5/25 Pages) Exar Corporation – RS-232/RS-485/RS-422 TRANSCEIVER

SP338E
REV. 1.0.0
RS-232/RS-485/RS-422 TRANSCEIVER WITH INTERNAL TERMINATION
ELECTRICAL CHARACTERISTICS
UNLESS OTHERWISE NOTED:
V_CC = +3.3V ±5% or +5.0V ±5%, C1-C4 = 0.1µF; T_A = T_MIN to T_MAX. Typical values are at V_CC = 3.3V, T_A = +25°C.
SYMBOL
PARAMETERS
MIN. TYP. MAX. UNITS
CONDITIONS
DC CHARACTERISTICS
I_CC
Supply Current (RS-232)
I_CC
Supply Current (RS-485)
I_CC
Vcc Shutdown Current
2
10 mA No load, idle inputs
4
10 mA No load, idle inputs
1
10 µA ENABLE = 0V
TRANSMITTER and LOGIC INPUT PINS: Pins 3, 4, 6, 11-19
V_IH
Logic Input Voltage High
2.0
V V_CC = 3.3V
V_IH
Logic Input Voltage High
2.4
V V_CC = 5.0V
V_IL
Logic Input Voltage Low
0.8
V
I_IL
Logic Input Leakage Current Low
1
µA Input Low (V_IN = 0V)
I_IH
Logic Input Leakage Current High
1
µA ^{Input High (VIN = VCC),}
pins 3, 4 and 6
I_PD
Logic Input Pull-down Current
50
µA ^{Input High (VIN = VCC),}
pins 11-19
V_HYS
Logic Input Hysteresis
200
mV
RECEIVER OUTPUTS: Pins 1, 2, 5, 7, 8
V_OH
Receiver Output Voltage High
V_CC-0.6
V I_OUT = -1.5mA
V_OL
Receiver Output Voltage Low
0.4
V I_OUT = 2.5mA
I_OSS
Receiver Output ShortCircuit Current
±20 ±60 mA 0 ≤ V_O ≤ V_CC
I_OZ
Receiver Output Leakage Current
±0.1 ±1
µA ^{0 ≤ VO ≤ VCC,}
Receivers disabled
5