st3237eb STMicroelectronics, st3237eb Datasheet - Page 6

• Manufacturer Part Number: st3237eb
• Description: ? 15 Kv Esd Protected, 1 ?a, 3 To 5.5 V, 250 Kbps Rs-232 Transceiver With Stand-by
• Manufacturer: STMicroelectronics

3
Table 5.
Table 6.
1. Transmitter input hysteresis is typically 250 mV
Table 7.
6/18
Symbol
I
Symbol
Symbol
SUPPLY
I
V
R
SHDN
V
V
V
I
TOUT
TOUT
I
I
HYS
TOL
TIH
TIL
SC
IL
V
Shutdown supply current
Input logic threshold low
(1)
Input logic threshold high
Input leakage current
Transmitter input
hysteresis
Electrical characteristics
Electrical characteristics (C
otherwise specified. Typical values are referred to T
Logic input (C
specified. Typical values are referred to T
Transmitter (C
unless otherwise specified. Typical values are referred to T
Output voltage swing
Transmitter output
resistance
Output short circuit current
Output leakage current
CC
power supply current SHDN=V
Parameter
Parameter
Parameter
1
1
- C
- C
4
4
= 0.1 µF, V
= 0.1 µF tested at 3.3 V ± 10 %, V
SHDN=GND, V
T-IN, VHSCI, EN, SHDN
T-IN, VHSCI, EN, SHDN
T-IN, VHSCI, EN, SHDN
All transmitter outputs are loaded with
3KΩ to GND
V
V
V
Transmitters disable
OUT
CC
CC
1
- C
= 0V, V
= 0V or 3.3V to 5.5V
CC
CC
= ± 12V
4
Test conditions
Test conditions
, No Load
= 3 V to 5.5 V, T
= 0.1 µF, V
Test conditions
OUT
T_IN
A
=GND or V
= ± 2V
= 25 °C)
CC
V
V
CC
CC
= 3 V to 5.5 V, T
A
A
CC
= 3.3V
= 5V
= 25 °C)
= -40 to 85 °C, unless otherwise
CC
A
= 3 V to 5.5 V, T
= 25 °C)
Min.
Min.
2.4
2
Min.
300
± 5
A
= -40 to 85 °C, unless
Typ.
Typ.
0.25
0.3
1
± 5.4
Typ.
10M
± 60
A
= -40 to 85 °C,
Max.
Max.
± 1.0
0.8
1
5
Max.
± 25
Unit
Unit
mA
µA
µA
Unit
mA
V
V
V
µA
V
Ω