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ST1480ABDR 数据表(PDF) 6 Page - STMicroelectronics

部件名 ST1480ABDR
功能描述  3.3V Powered, 15KV ESD protected, Up to 12Mbps true RS-485/RS-422 transceiver
PDF  22 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

ST1480ABDR 数据表(HTML) 6 Page - STMicroelectronics

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Electrical characteristics
ST1480A
6/22
4
Electrical characteristics
Table 6.
Electrical characteristics
VCC = 3V to 3.6V, 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, DI=0V or VCC
DE=VCC,
RE=0V or VCC
1.3
2.2
mA
DE=0V,
RE=0V
1.2
1.9
mA
ISHDN
Shutdown supply current
DE=0V, RE=VCC, DI=0V or VCC
0.002
1
µA
Table 7.
Logic input electrical characteristics
VCC = 3V to 3.6V, TA = -40 to 85°C, unless otherwise specified. Typical values are referred
to TA = 25°C)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VIL
Input logic threshold low
DE, DI, RE
1.3
0.8
V
VIH
Input logic threshold high
DE, DI, RE
2
V
IIN1
Logic input current
DE, DI, RE
± 2.0
µA
IIN2
Input current (A, B)
DE=0V, VCC= 0 or 3.6V
VIN=12V
1
mA
VIN=-7V
-0.8
mA
Table 8.
Transmitter electrical characteristics
VCC = 3V to 3.6V, TA = -40 to 85°C, unless otherwise specified. Typical values are referred
to Ta = 25°C)
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VOD
Differential drive output
RL= 100Ω (RS-422) (Figure 1.)2
V
RL= 54Ω (RS-485) (Figure 1.)1.5
V
RL= 60Ω (RS-485) (Figure 2.)1.5
V
∆V
OD
Change in magnitude of driver
differential output voltage for
complementary output states
(Note: 1)
RL= 54Ω or 100Ω (Figure 1.)0.2
V
VOC
Driver common mode output
voltage
RL= 54Ω or 100Ω (Figure 1.)3
V
∆V
OC
Change in magnitude of driver
common mode output voltage
(Note: 1)
RL= 54Ω or 100Ω (Figure 1.)0.2
V
IOSD
Driver short circuit output
current
± 250
mA



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