SP3239E 查看數據表（PDF） - Exar Corporation

零件编号

产品描述 (功能)

比赛名单

SP3239E

Intelligent +3.0V to +5.5V RS-232 Transceiver

Exar Corporation 

VCC

+

C5 0.1µF

+

24 C1+

C1 0.1µF

21 C1-

1 C2+

+

C2 0.1µF

3 C2-

22

VCC

SP3249E

V+ 23

+

C3 0.1µF

V- 4

C4 0.1µF

+

17 R1OUT

R1IN 8

16 R2OUT

5kΩ

R2IN 9

14 R3OUT

5kΩ

R3IN 11

5kΩ

20 T1IN

T1OUT 5

19 T2IN

T2OUT 6

18 T3IN

T3OUT 7

15 T4IN

T4OUT 10

13 T5IN

T5OUT 12

DB-9

Connector

GND

2

6

7

8

9

1

2

3

4

5

DB-9 Connector Pins:

1. Received Line Signal Detector 6. DCE Ready

2. Received Data

7. Request to Send

3. Transmitted Data

8. Clear to Send

4. Data Terminal Ready

9. Ring Indicator

5. Signal Ground (Common)

Figure 15. Circuit for the connectivity of the SP3249E with a DB-9 connector

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

11

SP3249E_100_013111

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