Datasheet

+3.0V to+5.5V, 1µA, RS-232/RS-485/422
Multiprotocol Transceivers
+
TX
V
CC
HDPLX
DI/T1IN
T1OUT
R1OUT R1IN
DE/T2IN
GND FAST SHDN
T2OUT
RO/R2OUT
R2IN
RX
RTS
CTS
13
RS-485/RS-232
12
11
10
19
8
10
17
9
18
Y(A)
RS-485
Z(B)
7
6
1
412
20
5
RJ45
DB9
RS-232
SHDN
μP
MAX3100
214
UART
MAX3161
SPI
Typical Application Circuit
EIA/TIA-232
STANDARD
CONNECTOR
PIN
MAX3160
MAX3161
MAX3162
PIN NUMBER
EQUIVALENT MAX3160 MAX3161 MAX3162
FUNCTION
(as seen by DTE)
DCD 1 Data Carrier Detect
RD 2 R2IN 13 17 19 Received Data
TD 3 T1OUT 5 5 5 Transmitted Data
DTR 4 Data Terminal Ready
SG 5 GND 4 4 4 Signal Ground
DSR 6 Data Set Ready
RTS 7 T2OUT 6 8 8
Request to Send (= DTE
ready)
CTS 8 R1IN 14 18 20 Clear to Send (= DCE ready)
RI 9 Ring Indicator
Table 14. Cable Connections Commonly Used for EIA/TIA-232 and
V.24 Asynchronous Interfaces
Maxim Integrated
21
MAX3160/MAX3161/MAX3162