SN75C189, SN75C189A

QUADRUPLE LOW-POWER LINE RECEIVERS

SLLS041G – OCTOBER 1988 – REVISED JANUARY 2000

3

POST OFFICE BOX 655303

recommended operating conditions

MIN

NOM

MAX

UNIT

VCC

Supply voltage

4.5

5

6

V

VI

Input voltage (see Note 3)

–25

25

V

IOH

High-level output current

–3.2

mA

IOL

Low-level output current

3.2

mA

Response-control current

±1

mA

TA

Operating free-air temperature

0

70

°C

NOTE 3: The algebraic convention, where the more positive (less negative) limit is designated as maximum, is used in this data sheet for logic

levels only, e.g., if –10 V is a maximum, the typical value is a more negative voltage.

otherwise noted) (see Note 4)

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

UNIT

VIT

Positive going input threshold voltage

’C189

See Figure 1

1

1.5

V

VIT+

Positive-going input threshold voltage

’C189A

See Figure 1

1.6

2.25

V

VIT

Negative going input threshold voltage

’C189

See Figure 1

0.75

1.25

V

VIT–

Negative-going input threshold voltage

’C189A

See Figure 1

0.75

1

1.25

V

Vh

Input hysteresis voltage (VIT

VIT )

’C189

See Figure 1

0.15

0.33

V

Vhys Input hysteresis voltage (VIT+ – VIT–)

’C189A

See Figure 1

0.65

0.97

V

VCC = 4.5 V to 6 V,

VI = 0.75 V,

35

VOH

High level output voltage

CC

,

IOH = –20 µA

I

,

3.5

V

VOH

High-level output voltage

VCC = 4.5 V to 6 V,

IOH = –3.2 mA

VI = 0.75 V,

2.5

V

VOL

Low level output voltage

VCC = 4.5 V to 6 V,

VI = 3 V,

04

V

VOL

Low-level output voltage

CC

,

IOL = 3.2 mA

I

,

0.4

V

IIH

High level input current

See Figure 2

VI = 25 V

3.6

8.3

mA

IIH

High-level input current

See Figure 2

VI = 3 V

0.43

1

mA

IIL

Low level input current

See Figure 2

VI = –25 V

–3.6

–8.3

mA

IIL

Low-level input current

See Figure 2

VI = –3 V

–0.43

–1

mA

IOS

Short-circuit output current

See Figure 3

–35

mA

ICC

Supply current

VI = 5 V,

See Figure 2

No load,

420

700

µA

† All typical values are at TA = 25°C.

NOTE 4: All characteristics are measured with response-control terminal open.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

tPLH

Propagation delay time, low- to high-level output

6

µs

tPHL

Propagation delay time, high- to low-level output

6

µs

tTLH

Transition time, low- to high-level output‡

RL = 5 kΩ,

CL = 50 pF,

See Figure 4

500

ns

tTHL

Transition time, high- to low-level output‡

300

ns

tw(N)

Duration of longest pulse rejected as noise§

1

6

µs

‡ Measured between 10% and 90% points of output waveform

§ The receiver ignores any positive- or negative-going pulse that is less than the minimum value of tw(N) and accepts any postive- or negative-going

pulse greater than the maximum of tw(N).