RECEIVER ELECTRICAL CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE

±10%, unless otherwise specified)

Symb ol

Parameter

T est Cond it ion s

Value

Un it

Min.

Typ.

Max.

Positive Going Threshold

Voltage

(See Figure 6)

1.6

2.1

2.55

V

Negative Going Threshold

Voltage

(See Figure 6)

0.65

1

1.25

V

(Note 6)

0.6

1.1

V

High Level Output Voltage

(Note 7)

3.5

4.8

V

Low Level Output Voltage

(See Figure 6)

0.2

0.4

V

High Level Input Current

(See Figure 6)

3.6

4.5

8.3

mA

(See Figure 6)

0.43

0.55

1

Low Level Input Current

(See Figure 6)

-3.6

-4.4

-8.3

mA

(See Figure 6)

-0.4

-0.55

-1

Short-Circuit Output Current

at High Level

(See Figure 5)

-13

-30

mA

Short-Circuit Output Current

at Low Level

(See Figure 5)

35

60

mA

NOTE 7: Ifthe inputs are letf unconnected, the receiver interprets this as an input low, and the receiver outputs will remain in the high state.

RECEIVER SWITCHING CHARACTERISTICS

Symbo l

Parameter

T est Co ndi tio ns

Value

Uni t

Min.

Typ .

Max.

Propagation Delay Time, Low

to High Level Output

(See Figure 6)

3.2

4

µs

Propagation Delay Time High

to Low Level Output

(See Figure 6)

2.6

4

µs

Transition Time Low to High

Level Output

(See Figure 6)

30

100

ns

Transition Time High to Low

Level Output

(See Figure 6)

10

50

ns

Pulse Duration of longest

pulse rejection as noise

(Note8)

(See Figure 6)

1

2.3

4

µs

ST75C185

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