SP3203E View Datasheet(PDF) - Exar Corporation

Part Name

Description

Manufacturer

SP3203E

3V RS-232 Serial Transceiver with Logic Selector and 15kV ESD Protection

Exar Corporation 

Name

C1+

V+

C1-

C2+

C2-

V-

T1IN

T2IN

T3IN

R2OUT

R1OUT

VL

R2IN

R1IN

T3OUT

T2OUT

T1OUT

GND

Vcc

SHUTDOWN

Function

Positive terminal of the voltage doubler charge-pump capacitor

Regulated +5.5V output generated by charge pump

Negative terminal of the voltage doubler charge-pump capacitor

Positive terminal of the inverting charge-pump capacitor

Negative terminal of the inverting charge-pump capacitor

Regulated -5.5V output generated by charge pump

TTL/CMOS driver input

TTL/CMOS driver input

TTL/CMOS driver input

TTL/CMOS receiver output

TTL/CMOS receiver output

Logic-Level Supply Voltage Selection

RS-232 receiver input

RS-232 receiver input

RS-232 Driver output

RS-232 Driver output

RS-232 Driver output

Ground

+3.0V to +5.5V supply voltage

Apply logic LOW to shut down drivers and charge pump.

PIN DESCRIPTION

Pin #

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

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



SP3203E_100_120810

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