RS-232(2011) データシートの表示（PDF） - Exar Corporation
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RS-232 Datasheet PDF : 21 Pages
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SP339E
RS-232/RS-485/RS-422 TRANSCEIVER WITH INTERNAL TERMINATION
ELECTRICAL CHARACTERISTICS (Continued)
REV. 1.0.0
UNLESS OTHERWISE NOTED:
VCC = +3.3V ±5% or +5.0V ±5%, C1-C4 = 0.1µF; TA = TMIN to TMAX. Typical values are at VCC = 3.3V, TA = +25°C.
SYMBOL
PARAMETERS
MIN. TYP. MAX. UNITS
CONDITIONS
SINGLE-ENDED RECEIVER INPUTS (RS-232)
VIN
Input Voltage Range
VIL
Input Threshold Low
VIH
VHYS
RIN
Input Threshold High
Input Hysteresis
Input Resistance
-15
+15 V
0.6 1.2
0.8 1.5
1.5 2.0
1.8 2.4
V VCC = 3.3V
V VCC = 5.0V
V VCC = 3.3V
V VCC = 5.0V
0.3
V
3
5
7
kΩ -15V ≤ VIN ≤ +15V
SINGLE-ENDED DRIVER OUTPUTS (RS-232)
VO
Output Voltage Swing
ISC
ROFF
Short Circuit Current
Power Off Impedance
±5.0 ±5.5
V Output loaded with 3kΩ to Gnd
±7.0 V No load output
±60 mA VO = 0V
300 10M
Ω VCC = 0V, VO = ±2V
6
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