ST1480ACDR Просмотр технического описания (PDF) - STMicroelectronics

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производитель

ST1480ACDR

3.3 V powered, 15 kV ESD protected, up to 12 Mbps true RS-485/RS-422 transceiver

STMicroelectronics 

Electrical characteristics

4

Electrical characteristics

ST1480AB - ST1480AC

VCC = 3 V to 3.6 V, TA = -40 to 85 °C, unless otherwise specified. Typical values are referred

to TA = 25 °C).

Table 6. Electrical characteristics

Symbol

Parameter

Test conditions

ISUPPLY

ISHDN

VCC Power supply current

No Load, DI=0 V or

VCC

DE=VCC,

RE=0 V or

VCC

DE=0 V,

RE=0 V

Shutdown supply current DE=0 V, RE=VCC, DI=0 V or VCC

Min. Typ. Max. Unit

1.3

2.2

mA

1.2

1.9

mA

0.002 1

µA

Table 7. Logic input electrical characteristics

Symbol

Parameter

Test conditions

Min.

VIL Input logic threshold low DE, DI, RE

VIH Input logic threshold high DE, DI, RE

2

IIN1 Logic input current

DE, DI, RE

IIN2 Input current (A, B)

DE=0V, VCC= 0 or 3.6V

VIN=12 V

VIN=-7 V

Typ. Max. Unit

1.3 0.8

V

V

± 2.0 µA

1

mA

-0.8 mA

Table 8. Transmitter electrical characteristics

Symbol

Parameter

Test conditions

Min.

RL= 100 Ω (RS-422) (Figure 1)

2

VOD Differential drive output

RL= 54 Ω (RS-485) (Figure 1)

1.5

RL= 60 Ω (RS-485) (Figure 3)

1.5

ΔVOD

Change in magnitude of driver

differential output voltage for

complementary output states

(Note: 1)

RL= 54 Ω or 100 Ω (Figure 1)

VOC

Driver common mode output

voltage

RL= 54 Ω or 100 Ω (Figure 1)

ΔVOC

Change in magnitude of driver

common mode output voltage RL= 54 Ω or 100 Ω (Figure 1)

(Note: 1)

IOSD

Driver short circuit output

current

Typ. Max. Unit

V

V

V

0.2

V

3

V

0.2

V

± 250 mA

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