ST3237 ST Microelectronics, ST3237 Datasheet - Page 4

• Manufacturer Part Number: ST3237
• Description: RS-232 TRANSCEIVER WITH STAND-BY
• Manufacturer: ST Microelectronics

ST3237
ELECTRICAL CHARACTERISTICS
(C
Typical values are referred to T
LOGIC INPUT ELECTRICAL CHARACTERISTICS
(C
Typical values are referred to T
Note 1: Transmitter input hysteresis is typically 250mV
TRANSMITTER ELECTRICAL CHARACTERISTICS
(C
Typical values are referred to T
RECEIVER ELECTRICAL CHARACTERISTICS
(C
Typical values are referred to T
4/12
Symbol
Symbol
Symbol
Symbol
I
V
R
SUPPLY
V
I
1
1
1
1
V
V
R
SHDN
V
V
V
V
V
RIHYS
TOUT
TOUT
I
I
I
SC
OL
RIN
RIH
TIH
RIN
TIL
OH
RIL
- C
- C
IL
OL
- C
- C
4
4
4
4
= 0.1 F, V
= 0.1 F, V
= 0.1 F tested at 3.3V 10%, V
= 0.1 F tested at 3.3V 10%, V
V
Shutdown Supply Current
Input Logic Threshold Low
(Note 1)
Input Logic Threshold High
(Note 1)
Input Leakage Current
Output Leakage Current
Output Voltage Low
Output Voltage High
Output Voltage Swing
Transmitter Output
Resistance
Output Short Circuit Current
Receiver Input Voltage
Operating Range
RS-232 Input Threshold
Low
RS-232 Input Threshold
High
Input Hysteresis
Input Resistance
CC
Power Supply Current
Parameter
Parameter
Parameter
Parameter
CC
CC
= 3V to 5.5V, T
= 3V to 5.5V, T
A
A
A
A
= 25°C)
= 25°C)
= 25°C)
= 25°C)
No Load
SHDN=GND T
T-IN, VHSCI, EN, SHDN
V
V
T-IN, VHSCI, EN, SHDN
Receiver Disabled
I
I
All Transmitter outputs are loaded with
3K
V
T
T
T
T
T
OUT
OUT
A
A
A
A
A
CC
CC
CC
A
A
= 25°C
= 25°C
= 25°C
= 25°C
= 25°C
= -40 to 85°C, unless otherwise specified.
= -40 to 85°C, unless otherwise specified.
= 3.3V
= 5V
= V+ = V- = 0V
= 1.6mA
= -1mA
to GND
CC
CC
= 3V to 5.5V, T
= 3V to 5.5V, T
V
Test Conditions
Test Conditions
Test Conditions
Test Conditions
CC
V
V
V
V
A
CC
CC
CC
CC
= 3V or 5.0V
= 25°C
= 3.3V
= 5V
= 3.3V
= 5V
V
A
A
OUT
= -40 to 85°C, unless otherwise specified.
= -40 to 85°C, unless otherwise specified.
T
=
A
= 25°C
2V
V
CC
Min.
Min.
Min.
Min.
2.4
-25
0.6
0.8
2
3
-0.6 V
5
3000
Typ.
CC
Typ.
Typ.
Typ.
0.5
1.2
1.5
1.5
1.8
0.3
0.01
0.05
5.4
1
25
5
-0.1
Max.
Max.
Max.
Max.
10
0.8
0.4
2.4
2.4
25
2
1.0
60
7
10
Unit
Unit
Unit
Unit
mA
mA
K
V
V
V
V
V
V
V
V
V
V
V
V
A
A
A