8

LT1280A/LT1281A

PACKAGE DESCRIPTIO

Dimensions in inches (millimeters) unless otherwise noted.

© LINEAR TECHNOLOGY CORPORATION 1993

SW Package

18-Lead Plastic Small Outline (Wide 0.300)

(LTC DWG # 05-08-1620)

S18 (WIDE) 0396

SEE

NOTE

0.447 – 0.463*

(11.354 – 11.760)

15

14

13

12

11

10

16

9

1

23

4

5

6

78

0.394 – 0.419

(10.007 – 10.643)

17

18

0.037 – 0.045

(0.940 – 1.143)

0.004 – 0.012

(0.102 – 0.305)

0.093 – 0.104

(2.362 – 2.642)

0.050

(1.270)

TYP

0.014 – 0.019

(0.356 – 0.482)

TYP

0

° – 8°

TYP

NOTE 1

0.009 – 0.013

(0.229 – 0.330)

0.016 – 0.050

(0.406 – 1.270)

0.291 – 0.299**

(7.391 – 7.595)

× 45°

0.010 – 0.029

(0.254 – 0.737)

NOTE:

1. PIN 1 IDENT, NOTCH ON TOP AND CAVITIES ON THE BOTTOM OF PACKAGES ARE THE MANUFACTURING OPTIONS.

THE PART MAY BE SUPPLIED WITH OR WITHOUT ANY OF THE OPTIONS

DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE

DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE

*

**

APPLICATI

TYPICAL

12801afa LT/TP 1098 REV A 2K • PRINTED IN USA

5k

5k

0.1

µF

0.1

µF

LOGIC

INPUTS

LOGIC

OUTPUTS

ON/OFF

18

10

13

11

12

6

5

4

2

16

9

14

8

15

7

3

17

5V INPUT

RS232 OUTPUT

RS232 OUTPUT

RS232 INPUT

RS232 INPUT

LT1280A • TA03

LT1280A

12V INPUT

+

Operation Using 5V and 12V Power Supplies

PART NUMBER

DESCRIPTION

COMMENTS

LT1180A/LT1181A

5V 2-Driver/2-Receiver RS232 Transceivers

Pin Compatible with LT1280A/LT1280A

LT1381

5V 2-Driver/2-Receiver RS232 Transceiver

Narrow 16-Pin SO Package

LT1780/LT1781

5V 2-Driver/2-Receiver RS232 Transceiver

IEC 1000-4-2 Level 4 Compliance

RELATED PARTS

Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417