Datasheet

ST207EB - ST207EC Pin configuration
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1 Pin configuration
Figure 1. Pin connections (top view)
Table 2. Pin description
Pin N° Symbol Note
1T3
OUT
RS-232 driver output
2T1
OUT
RS-232 driver output
3T2
OUT
RS-232 driver output
4R1
IN
RS-232 receiver input
5R1
OUT
TTL/CMOS receiver output
6T2
IN
TTL/CMOS driver input internal pull-up to V
CC
7T1
IN
TTL/CMOS driver input internal pull-up to V
CC
8 GND Ground
9V
CC
4.75V to 5.25V supply voltage
10 C
1+
Terminal for positive charge-pump capacitor
11 V
+
2V
CC
generated by the charge-pump
12 C
1-
Terminal for negative charge-pump capacitor
13 C
2+
Terminal for positive charge-pump capacitor
14 C
2-
Terminal for negative charge-pump capacitor
15 V
-
-2V
CC
generated by the charge-pump
16 R3
IN
RS-232 receiver input
17 R3
OUT
TTL/CMOS receiver output