SN55138, SN75138

QUADRUPLE BUS TRANSCEIVERS

SLLS079B – SEPTEMBER 1973 – REVISED MAY 1995

3

POST OFFICE BOX 655303

7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.5 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Driver off-state output voltage

7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Low-level output current into the driver output

150 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Continuous total dissipation

See Dissipation Rating Table

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

– 55

°C to 125°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SN75138

0

°C to 70°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–65

°C to 150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: D, N, or W package

260

°C

. . . . . . . . . . . . .

260

°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Lead temperature 1,6 mm (1/16 inch) from case for 60 seconds: J package

300

°C

. . . . . . . . . . . . . . . . . . . . .

† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTE 1: All voltage values are with respect to both ground terminals connected together.

DISSIPATION RATING TABLE

PACKAGE

TA ≤ 25°C

DERATING FACTOR

TA = 70°C

TA = 125°C

PACKAGE

A

POWER RATING

ABOVE TA = 25°C

A

POWER RATING

A

POWER RATING

D

950 mW

7.6 mW/

°C

608 mW

—

FK‡

1375 mW

11.0 mW/

°C

880 mW

275 mW

J‡

1375 mW

11.0 mW/

°C

880 mW

275 mW

N

1150 mW

9.2 mW/

°C

736 mW

—

W

1000 mW

8.0 mW/

°C

640 mW

200 mW

‡ In the FK and J packages, the SN55138 chip is alloy mounted.

recommended operating conditions

SN55138

SN75138

UNIT

MIN

NOM

MAX

MIN

NOM

MAX

UNIT

Supply voltage, VCC

4.5

5.5

4.75

5

5.25

V

High level input voltage VIH

Driver or strobe

2

2

V

High-level input voltage, VIH

Receiver

3.2

2.9

V

Low level input voltage VIL

Driver or strobe

0.8

0.8

V

Low-level input voltage, VIL

Receiver

1.5

1.8

V

High-level output current, IOH

Receiver output

– 400

– 400

µA

Low level output current IOL

Driver output

100

100

mA

Low-level output current, IOL

Receiver output

16

16

mA

Operating free-air temperature, TA

–55

125

0

70

°C