ST3232
ELECTRICAL CHARACTERISTICS
(C - C = 0.1µF, V = 3V to 5.5V, T = -40 to 85°C, unless otherwise specified.
1
4
CC
A
Typical values are referred to T = 25°C)
A
Symbol
Parameter
Test Conditions
Min.
Typ.
0.3
1
Max.
Unit
mA
mA
I
V
Power Supply Current No Load
No Load
V
= 3V ±10% T = 25°C
1
2
SUPPLY
CC
CC
A
V
= 5V ±10% T = 25°C
A
CC
LOGIC INPUT ELECTRICAL CHARACTERISTICS
(C - C = 0.1µF, V = 3V to 5.5V, T = -40 to 85°C, unless otherwise specified.
1
4
CC
A
Typical values are referred to T = 25°C)
A
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
Input Logic Threshold Low T-IN (Note 1)
0.8
V
TIL
V
Input Logic Threshold High
V
V
= 3.3V
= 5V
2
2.4
V
V
TIH
CC
CC
I
Input Leakage Current
T-IN
± 0.01
± 1
µA
IL
Note 1: Transmitter input hysteresis is typically 250mV
TRANSMITTER ELECTRICAL CHARACTERISTICS
(C - C = 0.1µF tested at V = 3V to 5.5V, T = -40 to 85°C, unless otherwise specified.
1
4
CC
A
Typical values are referred to T = 25°C)
A
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
Output Voltage Swing
All Transmitter outputs are loaded with
± 5
± 5.4
V
TOUT
3KΩ to GND
R
Transmitter Output
Resistance
V
= V+ = V- = 0V
V
V
= ± 2V
300
10M
Ω
TOUT
CC
CC
OUT
OUT
I
Output Short Circuit
Current
V
= 3V to 5V
= ± 12V
± 60
mA
TSC
RECEIVER ELECTRICAL CHARACTERISTICS
(C - C = 0.1µF tested at V = 3V to 5.5V, T = -40 to 85°C, unless otherwise specified.
1
4
CC
A
Typical values are referred to T = 25°C)
A
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
Receiver Input Voltage
Operating Range
-25
25
V
RIN
V
RS-232 Input Threshold
Low
T = 25°C
V
V
= 3.3V
= 5V
0.6
0.8
1.2
1.5
V
V
RIL
A
CC
CC
T = 25°C
A
V
RS-232 Input Threshold
High
T = 25°C
V
V
= 3.3V
= 5V
1.5
1.8
2.4
2.4
V
V
RIH
A
CC
CC
T = 25°C
A
V
Input Hysteresis
Input Resistance
0.3
5
V
KΩ
V
RIHYS
R
T = 25°C
3
7
RIN
A
V
TTL/CMOS Output Voltage
Low
I
= 1.6mA
0.4
ROL
OUT
V
TTL/CMOS Output Voltage
High
I
= -1mA
V
-0.6 V -0.1
V
ROH
OUT
CC
CC
3/11
STMICROELECTRONICS [ ST ]
