MC3453, MC3553

QUAD LINE DRIVERS WITH COMMON ENABLE

SLLS119A – FEBRUARY 1986 – REVISED FEBRUARY 1993

1

POST OFFICE BOX 655303

Line Driver

Temperature Ranges

– 3 V to 10 V

Operation

Motorola MC3453 and Military-Temperature-

Range Version of MC3553

description

The MC3453 and MC3553 feature four line drivers

with a common-enable input. When the ENABLE

input is high, a constant output current is switched

between each pair of output terminals in response

to the logic level at that channel input. When the

ENABLE

is

low,

all

channel

outputs

are

nonconductive (transistors biased to cutoff). This

minimizes loading in party-line systems where a

large number of drivers share the same line.

The driver outputs have a common-mode voltage

range of – 3 V to 10 V, allowing common-mode

voltages on the line without affecting driver

performance.

All outputs should be maintained within the

recommended common-mode output voltage

range to ensure that the channels do not interact

with each other. To minimize power dissipation, all

unused outputs should be grounded.

All inputs are diode clamped and are designed to satisfy TTL-system requirements. The inputs are tested at

2 V for high-logic-level input conditions and 0.8 V for low-logic-level input conditions. These tests ensure 400

mV of noise margin when interfaced with Series 54/74 TTL.

The MC3453 is characterized for operation from 0

°C to 70°C. The MC3553 is characterized for operation over

the full military temperature range of – 55

°C to 125°C.

Copyright

© 1993, Texas Instruments Incorporated

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.

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

1A

1Y

1Z

2Z

2Y

ENABLE

2A

GND

4A

4Y

4Z

3Z

3Y

3A

D, J, OR N...PACKAGE

(TOP VIEW)

LOGIC

INPUT

OUTPUT

CURRENT

ENABLE

INPUT

HH

On

L

H

Off

H

L

Off

L

L

Off

FUNCTION TABLE

L = low logic level, H = high logic level

Z

Off

On

Off

Off

Y

3

2

1 20 19

910 11 12 13

4

5

6

7

8

18

17

16

15

14

4Y

4Z

NC

3Z

3Y

1Z

2Z

NC

2Y

ENABLE

FK PACKAGE

(TOP VIEW)

NC – No internal connection