Programmable DTE/DCE,
+5V RS-232 Transceiver
MAX214
MAX214
Table 1a. DTE-Operation Pin Configurations
TTL/CMOS
I/O LABEL
Transmitter (TxD)
Receiver (RxD)
Request to Send (RTS)
Clear to Send (CTS)
Data Terminal Ready (DTR)
Data Set Ready (DSR)
Detector Carrier Data (DCD)
Ring Indicator (RI)
MAX214
PIN
5
6
25
23
24
22
7
8
FUNCTION
MAX214
PIN
9
10
20
19
18
17
11
12
RS-232
I/O LABEL
TxD
RxD
RTS
CTS
DTR
DSR
DCD
RI
DB-25
PIN
2
3
4
5
20
6
8
22
+
INPUT
THRESHOLD
-
-
+
+
Table 1b. DCE-Operation Pin Configurations
MAX214
PIN
5
6
25
23
FUNCTION
MAX214
PIN
10
9
19
20
17
24
11
22
18
7
8
12
RI
22
DTR
20
DCD
8
RS-232
I/O LABEL
RxD
TxD
CTS
RTS
DSR
DB-25
PIN
3
2
5
4
6
+
INPUT
THRESHOLD
-
-
+
6
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