ST3237EB Просмотр технического описания (PDF) - STMicroelectronics

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ST3237EB

± 15 kV ESD protected, 1 µA, 3 to 5.5 V, 250 kbps RS-232 transceiver with stand-by

STMicroelectronics 

ST3237EB

1

Pin configuration

Figure 1. Pin connection

Pin configuration

Table 2. Pin description

Pin n°

Symbol

1

C2+

2

GND

3

C2-

4

V-

5

T1OUT

6

T2OUT

7

T3OUT

8

R1IN

9

R2IN

10

T4OUT

11

R3IN

12

T5OUT

13

EN

14

SHDN

15

VHSCI

16

R1OUTB

17

T5IN

18

R3OUT

Name and function

Positive Terminal of Inverting Charge Pump Capacitor

Ground

Negative terminal of inverting charge pump capacitor

5.5V generated by the charge pump

First transmitter output voltage

Second transmitter output voltage

Third transmitter output voltage

First receiver input voltage

Second receiver input voltage

Fourth transmitter output voltage

Third receiver input voltage

Fifth transmitter output voltage

Receiver enable, active low

Shutdown control, active low

Very high speed control input. Connect to GND for normal

operation; connect to VCC for 1 Mbps transmission rates.

Non inverting complementary receiver output. Always active.

Fifth transmitter input voltage

Third receiver output voltage

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