ST3241E
RECEIVER ELECTRICAL CHARACTERISTICS
(C1 - C4 = 0.1µF, VCC = 3V to 5.5V, TA = -40 to 85°C, unless otherwise specified.
Typical values are referred to TA = 25°C)
Symbol
Parameter
Test Conditions
Min. Typ. Max. Unit
VRIN
VRIL
Receiver Input Voltage
Operating Range
RS-232 Input Threshold
Low
VRIH RS-232 Input Threshold
High
VRIHYS Input Hysteresis
RRIN Input Resistance
TA = 25°C
TA = 25°C
TA = 25°C
TA = 25°C
VCC = 3.3V
VCC = 5.0V
VCC = 3.3V
VCC = 5.0V
TA = 25°C
-25
25
V
0.6
1.2
V
0.8
1.5
1.5
2.4
V
1.8
2.4
0.3
V
3
5
7
KΩ
TIMING CHARACTERISTICS
(C1 - C4 = 0.1µF, VCC = 3V to 5.5V, TA = -40 to 85°C, unless otherwise specified.
Typical values are referred to TA = 25°C)
Symbol
Parameter
Test Conditions
DR Maximum Data Rate
RL = 3KΩ CL= 1000pF
one trasmitter switching
tPHL Receiver Propagation Delay RIN to ROUT
tPLH
CL = 150pF
tT_SKEW Transmitter Skew
tR_SKEW Receiver Skew
SRT Transition Slew Rate
TA = 25°C RL = 3K to 7KΩ VCC = 3.3V
measured from +3V to -3V or -3V to +3V
CL = 150pF to 1000pF
CL = 150pF to 2500pF
Min.
250
6
4
Typ.
0.15
100
300
Max.
30
30
Unit
Kbps
µs
ns
ns
V/µs
V/µs
5/10