Datasheet

ST3237EB Pin configuration
3/18
1 Pin configuration
Figure 1. Pin connection
Table 2. Pin description
Pin n° Symbol Name and function
1C
2
+ Positive Terminal of Inverting Charge Pump Capacitor
2 GND Ground
3C
2
- Negative terminal of inverting charge pump capacitor
4 V- 5.5V generated by the charge pump
5T1
OUT
First transmitter output voltage
6T2
OUT
Second transmitter output voltage
7T3
OUT
Third transmitter output voltage
8R1
IN
First receiver input voltage
9R2
IN
Second receiver input voltage
10 T4
OUT
Fourth transmitter output voltage
11 R3
IN
Third receiver input voltage
12 T5
OUT
Fifth transmitter output voltage
13 EN Receiver enable, active low
14 SHDN Shutdown control, active low
15 VHSCI
Very high speed control input. Connect to GND for normal
operation; connect to V
CC
for 1 Mbps transmission rates.
16 R1
OUTB
Non inverting complementary receiver output. Always active.
17 T5
IN
Fifth transmitter input voltage
18 R3
OUT
Third receiver output voltage