Datasheet

MAX3221/MAX3223/MAX3243
1µA Supply-Current, True +3V to +5.5V
RS-232 Transceivers with AutoShutdown
10 ______________________________________________________________________________________
+V
COMPUTER SERIAL PORT
+V
-V
GND
Tx
SERIAL
MOUSE
MAX3243
FORCEOFF
23
R5OUT
15
R4OUT
16
R3OUT
17
R2OUT
18
R1OUT
19
R2OUTB
20
LOGIC
OUTPUTS
5kΩ
5kΩ
5kΩ
5kΩ
5kΩ
R5IN 8
R4IN
7
R3IN
6
R2IN 5
R1IN
4
RS-232
INPUTS
GND
25
LOGIC
INPUTS
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
V
CC
C4
0.1µF
C3
0.1µF
0.1µF
26
C1
0.1µF
C2
0.1µF
FORCEON
INVALID
22
21
TO POWER
MANAGEMENT
UNIT
+3.3V
Figure 7b. Mouse Driver Test Circuit