SP3249EEY-L datasheet(6/16 Pages) EXAR

Part #	SP3249EEY-L

Description	Intelligent 3.0V to 5.5V RS-232 Transceiver

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Manufacturer	EXAR [Exar Corporation]

Direct Link	http://www.exar.com

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Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com

SP3249E_100_013111

Figure 5. SP3249E Typical Operating Circuit

SP3249E

24

21

3

1

23

4

22

GND

C1+

C1-

C2+

C2-

V+

V-

VCC

0.1µF

+

C2

C5

C1

+

C3

C4

+

VCC

2

5kΩ

17

16

14

8

9

11

RS-232

INPUTS

TTL/CMOS

OUTPUTS

R1OUT

R1IN

R2IN

R3IN

R2OUT

R3OUT

20

19

18

5

6

7

RS-232

OUTPUTS

TTL/CMOS

INPUTS

T1IN

T2OUT

T2IN

T3IN

T3OUT

T1OUT

15

13

10

12

T4OUT

T4IN

T5IN

T5OUT

0.1µF

5kΩ

Figure 4. SP3249E Pinout Configuration

T4IN

1

2

3

4

21

22

23

24

5

6

7

20

19

18

C2-

V-

R1IN

R2IN

IN

C2+

C1-

GND

VCC

V+

T1IN

8

9

10

11

14

15

16

17

12

13

T OUT

T2OUT

T3OUT

T3IN

T2IN

T5IN

R3OUT

R2OUT

R1OUT

SP3249E

C1+

T4OUT

T5OUT

1

3

R

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Exar Corporation	SP3221E	692Kb / 22P	Intelligent 3.0V to 5.5V RS-232 Transceiver
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SP3249EEY-L Datasheet(PDF) 6 Page - Exar Corporation

SP3249EEY-L Datasheet(HTML) 6 Page - Exar Corporation

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