st3232b STMicroelectronics, st3232b Datasheet - Page 5

• Manufacturer Part Number: st3232b
• Description: 3 To 5.5 V, Low Power, Up To 400 Kbps Rs-232 Drivers And Receivers
• Manufacturer: STMicroelectronics

3
Table 4.
Table 5.
1. Transmitter input hysteresis is typically 250mV.
Table 6.
Table 7.
Symbol
Symbol
I
V
Symbol
SUPPLY
Symbol
V
V
V
R
V
V
R
V
RIHYS
I
ROH
ROL
V
TOUT
TOUT
RIN
RIH
V
TSC
RIL
RIN
I
TIH
TIL
IL
Receiver input voltage operating
range
RS-232 Input threshold low
RS-232 Input threshold high
Input hysteresis
Input resistance
TTL/CMOS Output voltage low
TTL/CMOS Output voltage high I
V
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
Receiver (C
unless otherwise specified. Typical values are referred to T
Output voltage swing
Transmitter output
resistance
Output short circuit current
CC
Input logic threshold low
Input logic threshold high
Input leakage current
Power supply current
Parameter
Parameter
Parameter
Parameter
1
- C
1
1
- C
- C
4
= 0.1 µF tested at 3.3 V ±10 %, V
4
4
= 0.1 µF, V
= 0.1 µF tested at 3.3 V ± 10 %, V
No Load, V
No Load, V
V
All transmitter outputs are loaded with
3kΩ to GND
V
CC
CC
T
T
T
T
T
I
T-IN
V
V
T-IN
1
OUT
OUT
A
A
A
A
A
CC
CC
- C
= V+ = V- = 0V, V
= 3V or 5V, V
= 25°C, V
= 25°C, V
= 25°C, V
= 25°C, V
= 25°C
CC
(1)
= 3.3V
= 5V
= 1.6mA
= -1mA
Test conditions
4
CC
CC
Test conditions
Test conditions
= 3 V to 5.5 V, T
= 0.1 µF, V
Test conditions
= 3V
= 5V
CC
CC
CC
CC
A
±
±
= 25 °C)
= 3.3V
= 5V
= 3.3V
= 5V
10%, T
10%, T
OUT
CC
OUT
= ± 12
A
A
= 3 V to 5.5 V, T
A
= ± 2V
A
= 25°C
= 25°C
CC
= 25 °C)
= -40 to 85 °C, unless otherwise
= 3 V to 5.5 V, T
CC
V
CC
Min.
Min.
A
A
= 3 V to 5.5 V, T
-25
0.6
0.8
2.4
3
2
-0.6
= 25 °C)
= 25 °C)
Min.
Min.
300
± 5
A
± 0.01
V
Typ.
= -40 to 85 °C, unless
CC
Typ.
1.1
1.5
1.5
1.8
0.3
Typ.
5
0.3
-0.1
A
1
± 5.4
Typ.
10M
= -40 to 85 °C,
A
Max.
= -40 to 85 °C,
0.8
± 1
Max.
Max.
2.4
2.4
0.4
25
7
1
2
Max.
± 60
Unit
Unit
Unit
µA
mA
mA
V
V
Unit
kΩ
mA
V
V
V
V
V
V
5/18
V
Ω