Datasheet

DocID6900 Rev 17 5/18
ST202EB, ST202EC, ST232EB, ST232EC Electrical characteristics
18
3 Electrical characteristics
Note: All tests versus GND.
Table 4. ESD performance: transmitter outputs, receiver inputs
Symbol Parameter Test condition Min. Typ. Max. Unit
ESD ESD protection voltage
Human body model ± 15
--kVIEC 1000-4-2 (contact discharge) ± 6
IEC 1000-4-2 (air discharge) ± 8
Table 5. Electrical characteristics
(C
1
- C
4
= 0.1 µF for ST202E, C
1
- C
4
= 0.1 µF for ST232E, V
CC
= 5 V ± 10 %,
T
A
= -40 to 125 °C, unless otherwise specified; typical values are referred to T
A
= 25 °C)
Symbol Parameter Test condition Min. Typ. Max. Unit
I
SUPPLY
V
CC
power supply current No Load, T
A
= 25°C 5 10 mA
Table 6. Transmitter electrical characteristics
(C
1
- C4 = 0.1 µF, V
CC
= 5 V ± 10 %, T
A
= -40 to 85 °C, unless otherwise specified;
typical values are referred to T
A
= 25 °C)
Symbol Parameter Test condition Min. Typ. Max. Unit
V
TOUT
Output voltage swing
All transmitter outputs are loaded
with 3 kΩ to GND
± 5 ± 9V
I
TIL
Input leakage current ± 10 µA
V
TIL
Input logic threshold low 0.8
V
V
TIH
Input logic threshold high 2
SR
T
Transition slew rate
T
A
= 25 °C, V
CC
= 5 V R
L
= 3 to 7
KΩ, C
L
= 50 to 1000 pF
(1)
3 6 30 V/µs
D
R
Data rate
R
L
= 3 to 7 kΩ, C
L
= 50 to 1000 pF
one transmitter switching
230 400 kbits/s
R
TOUT
Transmitter output resistance V
CC
= V+ = V- = 0V V
OUT
= ± 2 V 300 Ω
I
SC
Transmitter output short circuit
current
±10 ±60 mA
t
DT
Transmitter propagation delay
R
L
= 3 to 7 kΩ, C
L
= 50 to 2500 pF
All transmitter loaded
2µA
1. Measured from 3 V to -3 V or from -3 V to 3 V