ST3232BD 데이터 시트보기 (PDF) - STMicroelectronics
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ST3232BD Datasheet PDF : 11 Pages
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ST3232
ELECTRICAL CHARACTERISTICS
(C1 - C4 = 0.1µF, VCC = 3V to 5.5V, TA = -40 to 85°C, unless otherwise specified.
Typical values are referred to TA = 25°C)
Symbol
Parameter
Test Conditions
Min. Typ. Max. Unit
ISUPPLY VCC Power Supply Current No Load VCC = 3V ±10% TA = 25°C
No Load VCC = 5V ±10% TA = 25°C
0.3
1
mA
1
2
mA
LOGIC INPUT ELECTRICAL CHARACTERISTICS
(C1 - C4 = 0.1µF, VCC = 3V to 5.5V, TA = -40 to 85°C, unless otherwise specified.
Typical values are referred to TA = 25°C)
Symbol
Parameter
Test Conditions
Min. Typ. Max. Unit
VTIL
VTIH
IIL
Input Logic Threshold Low T-IN (Note 1)
Input Logic Threshold High VCC = 3.3V
VCC = 5V
Input Leakage Current
T-IN
0.8
V
2
V
2.4
V
± 0.01 ± 1
µA
Note 1: Transmitter input hysteresis is typically 250mV
TRANSMITTER ELECTRICAL CHARACTERISTICS
(C1 - C4 = 0.1µF tested at VCC = 3V to 5.5V, TA = -40 to 85°C, unless otherwise specified.
Typical values are referred to TA = 25°C)
Symbol
Parameter
Test Conditions
Min. Typ. Max. Unit
VTOUT Output Voltage Swing
RTOUT
ITSC
Transmitter Output
Resistance
Output Short Circuit
Current
All Transmitter outputs are loaded with
± 5 ± 5.4
V
3KΩ to GND
VCC = V+ = V- = 0V
VOUT = ± 2V
300 10M
Ω
VCC = 3V to 5V
VOUT = ± 12V
± 60 mA
RECEIVER ELECTRICAL CHARACTERISTICS
(C1 - C4 = 0.1µF tested at VCC = 3V to 5.5V, TA = -40 to 85°C, unless otherwise specified.
Typical values are referred to TA = 25°C)
Symbol
Parameter
Test Conditions
Min. Typ. Max. Unit
VRIN
VRIL
VRIH
VRIHYS
RRIN
VROL
VROH
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
TA = 25°C
TA = 25°C
TA = 25°C
TA = 25°C
VCC = 3.3V
VCC = 5V
VCC = 3.3V
VCC = 5V
TA = 25°C
IOUT = 1.6mA
IOUT = -1mA
-25
25
V
0.6
1.2
V
0.8
1.5
V
1.5
2.4
V
1.8
2.4
V
0.3
V
3
5
7
KΩ
0.4
V
VCC-0.6 VCC-0.1
V
3/11
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