Datasheet

ST3241EB - ST3241EC Electrical characteristics
Doc ID 9066 Rev 5 7/13
Table 10. Receiver electrical characteristics
(C
1
- C
4
= 0.1 µF, V
CC
= 3 V to 5.5 V, T
A
= –40 to 85 °C, unless otherwise specified.
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
RIN
Receiver input voltage
operating range
–25 25 V
V
RIL
RS-232 Input threshold low
T
A
= 25 °C, V
CC
= 3.3 V
T
A
= 25 °C, V
CC
= 5.0 V
0.6
0.8
1.2
1.5
V
V
RIH
RS-232 Input threshold high
T
A
= 25 °C, V
CC
= 3.3 V
T
A
= 25 °C, V
CC
= 5.0 V
1.5
1.8
2.4
2.4
V
V
RIHYS
Input hysteresis 0.3 V
R
RIN
Input resistance T
A
= 25 °C 3 5 7 kΩ
Table 11. Timing characteristics
(C
1
- C
4
= 0.1 µF, V
CC
= 3 V to 5.5 V, T
A
= –40 to 85 °C, unless otherwise specified.
Symbol Parameter Test Conditions Min. Typ. Max. Unit
D
R
Maximum data rate
R
L
= 3 kΩ, C
L
= 1000 pF
one transmitter switching
250 kbps
t
PHL
t
PLH
Receiver propagation delay R
IN
to R
OUT
, C
L
= 150 pF 0.15 µs
t
T_SKEW
Transmitter skew 100 ns
t
R_SKEW
Receiver skew 300 ns
S
RT
Transition slew rate
T
A
= 25 °C, R
L
= 3 k to 7 kΩ, V
CC
= 3.3 V
measured from +3 V to –3 V or –3 V to +3 V
C
L
= 150 pF to 1000 pF
C
L
= 150 pF to 2500 pF
6
4
30
30
V/µs
V/µs