SN55109A, SN55110A

SN75109A, SN75110A, SN75112

DUAL LINE DRIVERS

SLLS106B – DECEMBER 1975 – REVISED MAY 1995

Copyright

2–1

POST OFFICE BOX 655303

Temperature Ranges

– 3 V to 10 V

Exceeds the Requirements of CCITT

Recommendation V.35

description

The

SN55109A,

SN55110A,

SN75109A,

SN75110A, and SN75112 dual line drivers have

improved output current regulation with supply

voltage and temperature variations. In addition,

the higher current of the SN75112 (27 mA) allows

data to be transmitted over longer lines. These

drivers offer optimum performance when used

with the SN55107A, SN55108A, SN75107A, and

SN75108A line receivers.

These drivers feature independent channels with

common voltage supply and ground terminals.

The significant difference between the three

drivers is in the output current specification. The driver circuits feature a constant output current that is switched

to either of two output terminals by the appropriate logic levels at the input terminals. The output current can

be switched off (inhibited) by low logic levels on the enable inputs. The output current is nominally 6 mA for the

’109A, 12 mA for the ’110A, and 27 mA for the SN75112.

The enable/inhibit feature is provided so the circuits can be used in party-line or data-bus applications. A strobe

or inhibitor (enable D), common to both drivers, is included for increased driver-logic versatility. The output

in a party-line system with other drivers. The output impedance of the driver in the inhibited mode is very high.

The output impedance of a transistor is biased to cutoff.

AVAILABLE OPTIONS

PACKAGED DEVICES

CERAMIC

TA

SMALL OUTLINE

(D)

CHIP CARRIER

(FK)

CERAMIC DIP

(J)

PLASTIC DIP

(N)

FLATPACK

(W)

SN75109AD

SN75109AN

0

°C to 70°C

SN75109AD

SN75110AD

SN75109AN

SN75110AN

SN75112D

SN75112N

SN55109AFK

SN55109AJ

SN55109AJ

SN55109AW

–55

°C to 125°C

SN55109AFK

SN55110AFK

SN55109AJ

SN55110AJ

SN55109AJ

SN55110AJ

SN55109AW

SN55110AW

55 C to 125 C

SN55110AFK

SN55110AJ

SN55110AJ

SN55110AW

The D package is available taped and reeled. Add the suffix R to the device type, (e.g., SN75110ADR).

1

2

3

4

5

6

7

14

13

12

11

10

9

8

1A

1B

1C

2C

2A

2B

GND

1Y

1Z

D

2Z

2Y

SN55109A, SN55110A ...J OR W PACKAGE

SN75109A, SN75110A, SN75112 ...D OR N PACKAGE

(TOP VIEW)

3

2

1 20 19

910 11 12 13

4

5

6

7

8

18

17

16

15

14

1Z

NC

NC

D

1C

NC

2C

NC

2A

SN55109A, SN55110A . . . FK PACKAGE

(TOP VIEW)

NC – No internal connection

THE SN75109A IS NOT

RECOMMENDED FOR NEW DESIGNS

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.