SP3249 查看數據表（PDF） - Signal Processing Technologies

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SP3249

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

Signal Processing Technologies 

PIN DESCRIPTION

NAME

FUNCTION

PIN

NO.

C2+

Positive terminal of the inverting charge-pump capacitor.

1

GND

Ground.

2

C2-

Negative terminal of the inverting charge-pump capacitor.

3

V-

Regulated -5.5V output generated by the charge pump.

4

T1OUT

RS-232 driver output.

5

T2OUT

RS-232 driver output.

6

T3OUT

RS-232 driver output.

7

R1IN

RS-232 receiver input.

8

R2IN

RS-232 receiver input.

9

T4OUT

RS-232 driver output.

10

R3IN

RS-232 receiver input.

11

T5OUT

RS-232 driver output.

12

T5IN

TTL/CMOS driver input.

13

R3OUT

TTL/CMOS receiver output.

14

T IN

TTL/CMOS driver input.

15

4

R2OUT

TTL/CMOS receiver output.

16

R1OUT

TTL/CMOS receiver output.

17

T3IN

TTL/CMOS driver input.

18

T2IN

TTL/CMOS driver input.

19

T1IN

TTL/CMOS driver input.

20

C1-

Negative terminal of the voltage doubler charge-pump capacitor.

21

VCC

+3.0V to +5.5V supply voltage.

22

V+

Regulated +5.5V output generated by the charge pump.

23

C1+

Positive terminal of the voltage doubler charge-pump capacitor.

24

Table 1. Device Pin Description

Rev.4/08/02

SP3249E Intelligent +3.0V to +5.5V RS-232 Transceivers

4

© Copyright 2002 Sipex Corporation

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