st3237eb STMicroelectronics, st3237eb Datasheet - Page 4

• Manufacturer Part Number: st3237eb
• Description: ? 15 Kv Esd Protected, 1 ?a, 3 To 5.5 V, 250 Kbps Rs-232 Transceiver With Stand-by
• Manufacturer: STMicroelectronics

Table 2.
4/18
Pin n°
19
20
21
22
23
24
25
26
27
28
Pin description (continued)
Symbol
R2
R1
T4
T3
T2
V
T1
C
C
V+
CC
OUT
OUT
1
1
IN
IN
IN
N
+
-
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