SN75LBC976

9CHANNEL DIFFERENTIAL TRANSCEIVER

SLLS133D − AUGUST 1992 − REVISED MAY 1995

2−4

POST OFFICE BOX 655303

POST OFFICE BOX 1443

recommended operating conditions

MIN

NOM

MAX

UNIT

Supply voltage, VCC

4.75

5

5.25

V

Voltage at any bus terminal (separately or common-mode), VO, VI, or VIC

B + or B −

12

V

Voltage at any bus terminal (separately or common-mode), VO, VI, or VIC

B + or B −

−7

V

High-level input voltage, VIH

All except B + and B −

2

V

Low-level input voltage, VIL

All except B + and B −

0.8

V

High-level output current, IOH

B + or B −

−60

mA

High-level output current, IOH

A

−8

mA

Low-level output current, IOL

B + or B −

60

mA

Low-level output current, IOL

A

8

mA

Operating free-air temperature, TA

0

70

°C

device electrical characteristics over recommended ranges of operating conditions (unless

otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

UNIT

IIH

High-level input current

BSR, A, DE/RE, and CRE

VIH = 2 V

− 200

µA

IIH

High-level input current

CDE0, CDE1, and CDE2

See Figure 1

VIH = 2 V

100

µA

IIL

Low-level input current

BSR, A, DE/RE, and CRE

See Figure 1

VIL = 0.8 V

− 200

µA

IIL

Low-level input current

CDE0, CDE1, and CDE2

VIL = 0.8 V

100

µA

All drivers and receivers

disabled

BSR and CDE0 at 5 V,

Other inputs at 0 V

1.4

3

mA

ICC

Supply current

All receivers enabled

No load,

VID = 5 V,

All other inputs at 0 V

29

45

mA

All drivers enabled

BSR at 0 V,

No load,

All other inputs at 5 V

4.8

10

mA

CO

Bus port output capacitance

B + or B −

16

pF

Cpd

Power dissipation capacitance‡

One driver

460

pF

Cpd

Power dissipation capacitance‡

One receiver

50

pF

† All typical values are at VCC = 5 V, TA = 25°C.

‡ Cpd determines the no-load dynamic current consumption; IS = Cpd ⋅ VCC ⋅ f + ICC.

driver electrical characteristics over recommended ranges of operating conditions (unless

otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

|VOD |

Differential output voltage

Vtest = −7 V to 12 V,

See Figure 2

1

2

V

IOS

Output short-circuit current

See Figure 3

±250

mA

IOZ

High-impedance-state output current

See receiver input current