4-261

TELCOM SEMICONDUCTOR, INC.

7

6

5

4

3

1

2

8

LOGIC-INPUT CMOS QUAD DRIVERS

FEATURES

s

High Peak Output Current ............................... 1.2A

s

Wide Operating Range ............................ 4.5 to 18V

s

Symmetrical Rise and Fall Times ................ 25nsec

s

Short, Equal Delay Times ............................ 75nsec

s

Latchproof! Withstands 500mA Inductive Kickback

s

3 Input Logic Choices

— AND / NAND / AND + Inv

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2kV ESD Protection on All Pins

APPLICATIONS

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General-Purpose CMOS Logic Buffer

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Driving All Four MOSFETs in an H-Bridge

s

Direct Small Motor Driver

s

Relay or Peripheral Drivers

s

CCD Driver

s

Pin-Switching Network Driver

ORDERING INFORMATION

Part No.

Package

Temp. Range

TC446xCOE

16-Pin SOIC (Wide)

0

° to +70°C

TC446xCPD

14-Pin Plastic DIP

0

° to +70°C

TC446xEJD

14-Pin CerDIP

– 40

° to +85°C

TC446xMJD

14-Pin CerDIP

– 55

° to +125°C

GENERAL DESCRIPTION

The TC446X family of four-output CMOS buffer/drivers

are an expansion from our earlier single- and dual-output

drivers. Each driver has been equipped with a two-input

logic gate for added flexibility.

The TC446X drivers can source up to 250 mA into loads

referenced to ground. Heavily loaded clock lines, coaxial

cables, and piezoelectric transducers can all be easily

driven with the 446X series drivers. The only limitation on

loading is that total power dissipation in the IC must be kept

within the power dissipation limits of the package.

The TC446X series will not latch under any conditions

within their power and voltage ratings. They are not subject

to damage when up to 5V of noise spiking (either polarity)

occurs on the ground line. They can accept up to half an amp

of inductive kickback current (either polarity) into their out-

puts without damage or logic upset. In addition, all terminals

are protected against ESD to at least 2000V.

TC4467

TC4468

TC4469

x indicates a digit must be added in this position to define the device

input configuration: TC446x — 7

NAND

8

AND

9

AND with INV

LOGIC DIAGRAMS

TC4468

TC4467

OUTPUT

TC446X

VDD

VDD

14

7

1Y

13

1

2

1B

1A

2Y

12

3

4

2B

2A

3Y

11

5

6

3B

3A

4Y

10

8

9

4B

4A

GND

TC4469

VDD

14

7

1Y

13

1

2

1B

1A

2Y

12

3

4

2B

2A

3Y

11

5

6

3B

3A

4Y

10

8

9

4B

4A

GND

VDD

14

7

1Y

13

1

2

1B

1A

2Y

12

3

4

2B

2A

3Y

11

5

6

3B

3A

4Y

10

8

9

4B

4A

GND

TC4467/8/9-6 10/21/96