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
+3.3V
26
0.1µF
V
CC
27
3
28
C1+
V+
C1
0.1µF
C3
0.1µF
24
1
C1-
COMPUTER SERIAL PORT
MAX3244
MAX3245
C2+
V-
C4
C2
0.1µF
0.1µF
2
C2-
+V
+V
-V
T1IN
T1OUT
9
14
T2IN
T3IN
LOGIC
INPUTS
T2OUT 10
13
12
11
T3OUT
GND
Tx
R2OUTB
20
R1OUT
R2OUT
R1IN
R2IN
4
5
19
18
5k
5k
5k
LOGIC
OUTPUTS
R3OUT
R4OUT
R5OUT
6
7
8
R3IN
R4IN
R5IN
17
16
RS-232
INPUTS
–7/MAX3245
5k
5k
SERIAL
MOUSE
15
23
FORCEON
FORCEOFF
INVALID
22
21
V
CC
TO POWER-
MANAGEMENT
UNIT
GND
25
Figure 11b. Mouse Driver Test Circuit
14 ______________________________________________________________________________________
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
