Datasheet

1µA Supply Current, 1Mbps, 3.0V to 5.5V,
RS-232 Transceivers with AutoShutdown Plus
MAX3244
MAX3245
FORCEON
23
R5OUT
15
R4OUT
16
R3OUT
17
R2OUT
18
R1OUT
19
R2OUTB
20
FORCEOFF
22
R5IN 8
R4IN
7
R3IN
6
R2IN 5
R1IN
4
GND
25
T3IN
12
T2IN
13
T1IN
14
C2-
2
C2+
1
C1-
24
C1+
28
T3OUT
11
T2OUT 10
T1OUT 9
V-
3
V+
27
V
CC
C4
0.1μF
C3
0.1μF
C1
0.1μF
C
BYPASS
0.1μF
C2
0.1μF
+3.3V
26
INVALID
21
AUTOSHUTDOWN
PLUS
MAX3226
MAX3227
FORCEON
READY
12
1
R1OUT9
FORCEOFF
16
INVALID 10
GND
14
T1IN
11
C2-
6
C2+
5
C1-
4
C1+
2
R1IN 8
T1OUT 13
V-
7
V+
3
V
CC
V
CC
C4
0.1μF
C3
0.1μF
0.1μF
15
C1
0.1μF
C2
0.1μF
C
BYPASS
C
BYPASS
+3.3V
TO POWER-
MANAGEMENT
UNIT
5kΩ
MAX3224*
MAX3225*
FORCEON
*MAX3224/MAX3225 PINOUT REFERS TO PDIP/SSOP/TSSOP PACKAGES.
READY
14
1
R2OUT10
R1OUT15
FORCEOFF
20
INVALID 11
R2IN
9
GND
18
RS-232
OUTPUTS
TTL/CMOS
INPUTS
T2IN
12
T1IN
13
C2-
6
C2+
5
C1-
4
C1+
2
R1IN
16
T2OUT
8
T1OUT 17
V-
7
V+
3
V
CC
V
CC
C4
0.1μF
C3
0.1μF
0.1μF
19
C1
0.1μF
C2
0.1μF
+3.3V
RS-232
INPUTS
TO POWER-
MANAGEMENT
UNIT
TTL/CMOS
OUTPUTS
AUTOSHUTDOWN
PLUS
AUTOSHUTDOWN
PLUS
5kΩ
5kΩ
5kΩ
5kΩ
5kΩ
5kΩ
5kΩ
___________________________________________________Typical Operating Circuits
16
Maxim Integrated
MAX3224–MAX3227/MAX3244/MAX3245