ST3237(2007) Ver la hoja de datos (PDF) - STMicroelectronics
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ST3237 Datasheet PDF : 15 Pages
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Electrical characteristics
3
Electrical characteristics
ST3237
Table 3.
Symbol
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)
Parameter
Test conditions
Min. Typ. Max. Unit
ISUPPLY
VCC power supply current
No load
25°C
VCC = 3V or 5.0V TA =
0.5
2
mA
ISHDN Shutdown supply current SHDN=GNDTA = 25°C
1
10
µA
t(s) Table 4.
Logic input (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)
uc Symbol
Parameter
Test Conditions
Min. Typ. Max. Unit
Prod ) VTIL
Input logic threshold low
(1)
T-IN, VHSCI, EN, SHDN
0.8
V
lete ct(s VTIH
o du IIL
bs ro IOL
O P VOL
Input logic threshold high VCC = 3.3V
(1)
VCC = 5V
Input leakage current
T-IN, VHSCI, EN, SHDN
Output leakage current Receiver disabled
Output voltage low
IOUT = 1.6mA
t(s) - lete VOH
Output voltage high
IOUT = -1mA
c so 1. Transmitter input hysteresis is typically 250mV
2
V
2.4
V
± 0.01 ± 1.0 µA
± 0.05 ± 10 µA
0.4
V
VCC-
0.6
VCC-
0.1
V
rodu - Ob Table 5.
te P t(s) Symbol
Transmitter (C1 - C4 = 0.1µF tested at 3.3V±10%, VCC = 3V to 5.5V, TA = -40 to 85°C,
unless otherwise specified. Typical values are referred to TA = 25°C)
Parameter
Test conditions
Min. Typ. Max. Unit
ole duc VTOUT Output voltage swing
All transmitter outputs are loaded with
3KΩ to GND
±5
± 5.4
V
Obs Pro RTOUT
Transmitter output
resistance
VCC = V+ = V- = 0VVOUT = ± 2V
3000
W
Obsolete ISC
Output short circuit
current
± 25 ± 60 mA
6/15
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