ST3243B 데이터 시트보기 (PDF) - STMicroelectronics

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ST3243B

3 to 5.5 V, 400 Kbps, RS-232 transceiver with auto-power-down

STMicroelectronics 

ST3243B - ST3243C

1

Pin configuration

Figure 1. Pin configuration

Pin configuration

Table 2. Pin description

Pin n°

Symbol

1

C2+

2

C2-

3

V-

4

R1IN

5

R2IN

6

R3IN

7

R4IN

8

R5IN

9

T1OUT

10

T2OUT

11

T3OUT

12

T3IN

13

T2IN

14

T1IN

15

R5OUT

16

R4OUT

Name and function

Positive terminal of inverting charge pump capacitor

Negative terminal of inverting charge pump capacitor

-5.5V Generated by the charge pump

First receiver input voltage

Second receiver input voltage

Third receiver input voltage

Fourth receiver input voltage

Fifth receiver input voltage

First transmitter output voltage

Second transmitter output voltage

Third transmitter output voltage

Third transmitter input voltage

Second transmitter input voltage

First transmitter input voltage

Fifth receiver output voltage

Fourth receiver output voltage

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