AZ75232_09 Datasheet, PDF (9/13 Pages) BCD Semiconductor Manufacturing Limited – MULTIPLE RS-232 DRIVERS AND RECEIVERS

MULTIPLE RS-232 DRIVERS AND RECEIVERS
Typical Application
Data Sheet
AZ75232
TTL/CMOS
Level
RI
DTR
CTS
UART
or
TX
Serial µC
RTS
RX
DSR
DCD
5V
11
GND
12 _RY5
10
V_SS
9
RA5
13 _DA3
8
DY3
14 _RY4
RA4 ⁷
15 _{DA2 AZ75232 DY2} 6
16 _DA1
DY1 ⁵
17 _RY3
RA3 ⁴
18
RY2
RA2 ³
19 _RY1
RA1 ²
20 _VCC
V_DD
1
EIA/TIA-232-F
DB9S
CONNECTOR
Signal
Ground
-12V
5
RI
9
DTR
C3
CTS
TX
C2
RTS
C1
RX
DSR
DCD
6
1
12V
Figure 11. Typical Application of AZ75232
Oct. 2009 Rev. 1. 7
BCD Semiconductor Manufacturing Limited
9