ST3243B Просмотр технического описания (PDF) - STMicroelectronics
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ST3243B Datasheet PDF : 22 Pages
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Electrical characteristics
3
Electrical characteristics
ST3243B - ST3243C
Table 5.
Symbol
Electrical characteristics
(C1 - C4 = 0.1 µF, VCC = 3 V to 5.5 V, TA = -40 to 85 °C, unless otherwise specified. Typical
values are referred to TA = 25 °C
Parameter
Test conditions
Min. Typ. Max. Unit
IASHDN
ISHDN
Supply current auto-power-down
VCC = 3.3 or 5.0V, TA = 25°C
All R_IN open, FORCEOFF = VCC
Shutdown supply current
VCC = 3.3 or 5.0V, TA = 25°C
All R_IN open, FORCEOFF = GND
ISHDN
Supply current auto-power-down
disabled
VCC = 3.3 or 5.0V TA = 25°C
FORCEON = FORCEOFF = VCC
No Load
1
10 µA
1
10 µA
0.3
1
mA
Table 6.
Symbol
Logic input electrical characteristics
(C1 - C4 = 0.1 µA, VCC = 3 V to 5.5 V, TA = -40 to 85 °C, unless otherwise specified. Typical
values are referred to TA = 25 °C
Parameter
Test conditions
Min. Typ. Max. Unit
VTIL Input logic threshold low
VTIH Input logic threshold high
VTHYS
IIL
IOL
VOL
VOH
Transmitter input hysteresis
Input leakage current
Output leakage current
Output voltage low
Output voltage high
T-IN, FORCEON, FORCEOFF
T-IN, FORCEON, FORCEOFF
VCC = 3.3V
VCC = 5V
T-IN, FORCEON, FORCEOFF
Receiver Disabled
IOUT = 1.6mA
IOUT = -1mA
0.8 V
2
V
2.4
V
0.5
V
± 0.01 ± 1.0 µA
± 0.05 ± 10 µA
0.4 V
VCC-0.6 VCC-0.1
V
Table 7.
Symbol
Auto-power-down electrical characteristics
(C1 - C4 = 0.1 µF, VCC = 3 V to 5.5 V, TA = -40 to 85 °C, unless otherwise specified. Typical
values are referred to TA = 25 °C
Parameter
Test conditions
Min. Typ. Max. Unit
VRITE
VRITD
VIOL
VIOH
tWU
Receiver input threshold to
transmitter enabled
Positive threshold
Negative threshold
Receiver input threshold to
transmitter disabled
1 µA Supply Current
INVALID Output voltage LOW
INVALID Output voltage HIGH
Receiver threshold to
transmitter enabled
IOUT = 1.6mA
2.7
V
2.7
V
-0.3
0.3
V
VCC-0.6
0.4
V
V
250
ms
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