Datasheet

Pin configuration ST207EB - ST207EC
4/15
18 T3
IN
TTL/CMOS driver input internal pull-up to V
CC
19 T4
IN
TTL/CMOS driver input internal pull-up to V
CC
20 T5
OUT
RS-232 driver output
21 T5
IN
TTL/CMOS driver input internal pull-up to V
CC
22 R2
OUT
TTL/CMOS receiver output
23 R2
IN
RS-232 receiver input
24 T4
OUT
RS-232 driver output
Table 2. Pin description
Pin N° Symbol Note