SN75LBC786

QUADRUPLE RS-423-B DRIVER/RECEIVER WITH LOOPBACK

SLLS184 – NOVEMBER 1994

3

POST OFFICE BOX 655303

DRIVER SECTION

electrical characteristics over recommended ranges of supply voltage and operating free-air

temperature (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VOH

High-level output voltage

Open circuit or RI = 450

Ω

4

5.5

6

V

VOL

Low-level output voltage

Open circuit or RI = 450

Ω

–6

– 5.5

–4

V

IIH

High-level input current

VI = 2.4 V – 5.5 V

100

µA

IIL

Low-level input current

VI = 0 V – 0.8 V

– 100

µA

IIKG

Output leakage current

VDD = VSS = 0 V,

VO = ± 6 V

– 100

100

µA

IOS(H)

High-level short-circuit output current

VI = high,

VO = 0 V

15

45

mA

IOS(L)

Low-level short-circuit output current

VI = low,

VO = 0 V

–45

–15

mA

IDD

Supply current (loopback off)

No load,

LB at 2 V

10

12

mA

IDD

Supply current (loopback off)

RI = 450

Ω,

LB at 2 V

60

70

mA

IDD(LB)

Supply current with loopback on

No load,

LB at 0.8 V

13

16

mA

ISS

Supply current (loopback off)

No load,

LB at 2 V

–10

–12

mA

ISS

Supply current (loopback off)

RI = 450

Ω,

LB at 2 V

–60

–70

mA

IDD

Supply current with loopback on

No load,

LB at 0.8 V

–13

–16

mA

LOOPBACK MODE

Output voltage (input either high or low)

RI = > 450

Ω,

VLB = low

–6

– 5.5

–4

V

switching characteristics over recommended ranges of supply voltage and operating free-air

temperature (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

RWS = 0 kΩ

1.5

T

iti

ti

l

t hi h l

l

t

t

RWS = 20 kΩ

1.5

2.1

2.7

µs

tTLH

Transition time, low-to-high level output

(see Figure 1)

RWS = 82 kΩ

5

8

11

µs

(see Figure 1)

RWS = 820 kΩ

80

RI = 450

Ω,

CL = 50 pF, RWS = 0 kΩ

1.5

T

iti

ti

hi h t l

l

l

t

t

VWS = 5 V

L

RWS = 20 kΩ

1.5

2.1

2.7

µs

tTHL

Transition time, high-to-low level output

(see Figure 1)

RWS = 82 kΩ

5

8

11

µs

(see Figure 1)

RWS = 820 kΩ

80

SR

Output slew rate

RWS = 20 kΩ

15

V/

µs

tsk

Output skew, |tPHL – tPLH| (see Figure 4)

RWS = 82 kΩ

1

µs