SP3220E Ver la hoja de datos (PDF) - Exar Corporation

Número de pieza

componentes Descripción

Fabricante

SP3220E

+3.0V to +5.5V RS-232 Driver/Receiver Pair

Exar Corporation 

Pin Function

NAME

EN

C1+

V+

C1-

C2+

C2-

V-

R1IN

R1OUT

T1IN

T1OUT

GND

VCC

SHDN

N.C.

FUNCTION

Receiver Enable. Apply Logic LOW for normal operation.

Apply logic HIGH to disable the receiver outputs (high-Z state)

Positive terminal of the voltage doubler charge-pump capacitor

+5.5V output generated by the 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

-5.5V output generated by the charge pump

RS-232 receiver input

TTL/CMOS receiver output

TTL/CMOS driver input

RS-232 driver output.

Ground

+3.0V to +5.5V supply voltage

Shutdown Control Input. Drive HIGH for normal device operation.

Drive LOW to shutdown the drivers (high-Z output) and the on-

board power supply

No Connect

PIN NUMBER

1

2

3

4

5

6

7

8

9

11

13

14

15

16

10, 12

Table 1. Device Pin Description

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



SP3220E_EB_EU_101_060311

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