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ST3243BPR 数据表(PDF) 4 Page - STMicroelectronics

部件名 ST3243BPR
功能描述  3 TO 5.5V, 400KBPS, RS-232 TRANSCEIVER WITH AUTO-POWERDOWN
PDF  14 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

ST3243BPR 数据表(HTML) 4 Page - STMicroelectronics

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ST3243
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ELECTRICAL CHARACTERISTICS
(C1 -C4 =0.1µF, VCC =3V to5.5V, TA = -40 to 85°C, unless otherwise specified.
Typical values are referred to TA =25°C)
LOGIC INPUT ELECTRICAL CHARACTERISTICS
(C1 -C4 =0.1µF, VCC =3V to5.5V, TA = -40 to 85°C, unless otherwise specified.
Typical values are referred to TA =25°C)
AUTO-POWERDOWN ELECTRICAL CHARACTERISTICS
(C1 -C4 =0.1µF, VCC =3V to5.5V, TA = -40 to 85°C, unless otherwise specified.
Typical values are referred to TA =25°C)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
IASHDN Supply Current
Auto-powerdown
VCC = 3.3 or 5.0V
TA =25°C
All R_IN open
FORCEOFF =VCC
110
µA
ISHDN
Shutdown Supply Current
VCC = 3.3 or 5.0V
TA =25°C
All R_IN open
FORCEOFF =GND
110
µA
ISHDN
Supply Current
Auto-powerdown Disabled
VCC = 3.3 or 5.0V
TA =25°C
FORCEON = FORCEOFF =VCCNo Load
0.3
1
mA
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VTIL
Input Logic Threshold Low
T-IN, FORCEON, FORCEOFF
0.8
V
VTIH
Input Logic Threshold High
T-IN, FORCEON, FORCEOFF
VCC =3.3V
VCC =5V
2
2.4
V
V
VTHYS Transmitter Input
Hysteresis
0.5
V
IIL
Input Leakage Current
T-IN, FORCEON, FORCEOFF
± 0.01
± 1.0
µA
IOL
Output Leakage Current
Receiver Disabled
± 0.05
± 10
µA
VOL
Output Voltage Low
IOUT =1.6mA
0.4
V
VOH
Output Voltage High
IOUT =-1mA
VCC-0.6 VCC-0.1
V
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VRITE
Receiver Input Threshold to
Transmitter Enabled
Positive Threshold
Negative Threshold
2.7
2.7
V
V
VRITD
Receiver Input Threshold to
Transmitter Disabled
1
µA Supply Current
-0.3
0.3
V
VIOL
INVALID Output Voltage
LOW
0.4
V
VIOH
INVALID Output Voltage
HIGH
VCC-0.6
V
tWU
Receiver Threshold to
Transmitter Enabled
IOUT =1.6mA
250
µs
tinvh
Receiver Positive or
Negative Threshold to
INVALID HIGH
IOUT =-1mA
1
µs
tinvL
Receiver Positive or
Negative Threshold to
INVALID LOW
30
µs



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