ST3237 ST Microelectronics, ST3237 Datasheet - Page 2

• Manufacturer Part Number: ST3237
• Description: RS-232 TRANSCEIVER WITH STAND-BY
• Manufacturer: ST Microelectronics

ST3237
PIN DESCRIPTION
2/12
PlN N°
10
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
11
1
2
3
4
5
6
7
8
9
SYMBOL
R1
VHSCI
R3
R2
R1
T1
T2
T3
T4
T5
SHDN
GND
R1
R2
R3
T5
T4
T3
T2
V
C
T1
C
C
C
EN
V+
V-
OUTB
OUT
OUT
OUT
OUT
OUT
CC
OUT
OUT
OUT
2
1
2
1
IN
IN
IN
IN
IN
IN
IN
+
N
+
-
-
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 1Mbps transmission rates.
Non Inverting Complementary Receiver Output. Always Active.
Fifth Transmitter Input Voltage
Third Receiver Output Voltage
Fourth Transmitter Input Voltage
Second Receiver Output Voltage
First Receiver Output Voltage
Third Transmitter Input Voltage
Second Transmitter Input Voltage
First Transmitter Input Voltage
Negative Terminal of Voltage- Charge Pump Capacitor
Supply Voltage
-5.5V Generated by the Charge Pump
Positive Terminal of Voltage- Charge Pump Capacitor
NAME AND FUNCTION