1ꢀ5k EꢁDꢂ-rotected, Down to 10nA, 3.0k to ꢀ.ꢀk,
Up to 1Mbps, True Rꢁꢂ232 Transceivers
_____________________________________Typical Operating Circuits (continued)
+3.3V
+3.3V
C
C
BYPASS
28
BYPASS
26
26
V
V
CC
CC
27
4
27
3
28
C1+
C1+
V+
V-
V+
C1
C3*
0.1 F
0.1 F
C3*
0.1 F
25
1
24
1
C1-
C2+
C1-
C2+
0.1 F
MAX3237E
MAX3241E
V-
C2
0.1 F
C4
0.1 F
0.1 F
0.1 F
3
2
C2-
C2-
T1IN
T1IN
T1OUT
T2OUT
T3OUT
5
6
7
T1OUT
9
24
14
13
T1
T2
T2IN
T3IN
T2IN
T2OUT 10
23
22
TTL/CMOS
INPUTS
RS-232
OUTPUTS
T3IN
12
21
11
T3OUT
R1IN
RS-232
OUTPUTS
LOGIC
T3
T4
T5
INPUTS
R1OUTB
T4IN
T5IN
T4OUT 10
19
17
R2OUTB
R1OUT
20
19
12
T5OUT
R1IN
4
5
R1OUTB
R1OUT
16
21
5k
R2OUT
R3OUT
R4OUT
R2IN
18
17
16
8
9
R1
R2
R3
5k
TTL/CMOS
OUTPUTS
5k
6
7
8
R3IN
RS-232
INPUTS
RS-232
INPUTS
R2OUT
R3OUT
R2IN
R3IN
20
18
LOGIC
OUTPUTS
5k
5k
5k
R4IN
11
5k
R5OUT
EN
15
23
R5IN
15
14
5k
MBAUD
SHDN
EN
13
22
SHDN
GND
2
GND
25
*C3 CAN BE RETURNED TO EITHER V OR GROUND.
CC
16 ______________________________________________________________________________________
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
