Datasheet

SN75LBC187
MULTICHANNEL EIA-232 DRIVER/RECEIVER
WITH CHARGE PUMP
SLLS130C – SEPTEMBER 1991 – REVISED MAY 1995
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
APPLICATION INFORMATION
EIA/TIA-232-E
DB9S
Connector
CS
DCD
DSR
RX
RTS
TX
CTS
DTR
RI
1
6
9
5
SN75LBC187
V
CC
RY1
RY2
RY3
DA1
DA2
RY4
DA3
RY5
GND
5 V
TL16C550
ACE
DCD
DSR
SI
RTS
SO
CTS
DTR
RI
SHUTDOWN C2 C2–
V
SS
RA1
RA2
RA3
DY1
DY2
RA4
DY3
RA5
V
DD
C1
0.1 µF
10 V
6.3 V
4.7 µF
C5
C1 C1–
+
10
19
20
22
6
7
26
5
8
11
13
18
1
23
3
2
27
4
9
17
25 15
16
1212 14
C3
0.1 µF
16 V
C4
0.1 µF
16 V
C2
0.1 µF
10 V
NOTE: C1, C2, C3, and C4 are Z5U-type ceramic-chip capacitors.
Figure 3. Typical SN75LBC187 Connection