ST3237(2007) Просмотр технического описания (PDF) - STMicroelectronics

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производитель

ST3237
(Rev.:2007)

3 to 5.5V, 250Kbps, RS-232 Transceiver with stand-by

STMicroelectronics 

ST3237

1

Pin configuration

Figure 1. Pin description

Pin configuration

bsolete Prroodduucctt((ss)) Table 1. Pin description

O P PlN N°

SYMBOL

t(s) - lete 1

C2+

o 2

GND

uc bs 3

C2-

d O 4

V-

Pro ) - 5

T1OUT

te t(s 6

T2OUT

le c 7

T3OUT

o du 8

R1IN

bs ro 9

R2IN

O P 10

T4OUT

lete 11

R3IN

o12

T5OUT

bs 13

EN

O 14

SHDN

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

15

VHSCI

Very High Speed Control Input. Connect to GND for normal

operation; connect to VCC for 1Mbps transmission rates.

16

R1OUTB

Non Inverting Complementary Receiver Output. Always Active.

17

T5IN

Fifth Transmitter Input Voltage

18

R3OUT

Third Receiver Output Voltage

3/15

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