1 µA S u p p ly Cu rre n t , 1 Mb p s , 3 .0 V t o 5 .5 V,
RS -2 3 2 Tra n s c e ive rs w it h Au t o S h u t d o w n P lu s
___________________________________________________Typ ic a l Op e ra t in g Circ u it s
+3.3V
26
+3.3V
15
C
BYPASS
0.1µF
0.1µF
C
BYPASS
V
V
CC
CC
3
7
2
27
3
28
C1+
C1+
V+
V-
V+
C1
0.1µF
C1
0.1µF
C3
0.1µF
C3
0.1µF
4
5
6
24
1
C1-
C1-
MAX3226
MAX3227
C2+
MAX3244
MAX3245
C2+
V-
C4
0.1µF
C2
C2
0.1µF
C4
2
0.1µF
0.1µF
C2-
C2-
T1IN
11
9
T1IN
T1OUT 13
T1OUT
9
14
T2IN
T3IN
T2OUT 10
13
12
R1OUT
R1IN
5k
8
11
21
T3OUT
FORCEOFF
FORCEON
22
23
TO POWER-
MANAGEMENT
UNIT
READY
INVALID 10
1
INVALID
AUTOSHUTDOWN
PLUS
AUTOSHUTDOWN
PLUS
FORCEOFF
FORCEON
16
12
V
CC
R2OUTB
R1OUT
20
19
GND
14
R1IN
4
5
+3.3V
5k
19
C
BYPASS
0.1µF
R2OUT
R3OUT
R4OUT
R2IN
V
18
17
16
CC
3
7
2
C1+
V+
V-
C1
C3
5k
4
5
6
0.1µF
0.1µF
C1-
MAX3224
MAX3225
6
7
R3IN
5k
C2+
C4
0.1µF
C2
0.1µF
C2-
R4IN
5k
13
12
T1IN
T1OUT 17
TTL/CMOS
INPUTS
RS-232
OUTPUTS
8
T2IN
T2OUT
R5OUT
15
R5IN
5k
8
–7/MAX3245
16
15 R1OUT
R1IN
GND
25
TTL/CMOS
OUTPUTS
RS-232
INPUTS
5k
R2IN
10 R2OUT
9
5k
TO POWER-
MANAGEMENT
UNIT
AUTOSHUTDOWN
PLUS
READY
INVALID 11
1
FORCEOFF
FORCEON
20
14
V
CC
GND
18
16 ______________________________________________________________________________________
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
